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d92aa5c44a
haproxy/src/ssl_sock.c
Willy Tarreau d92aa5c44a MINOR: global: report information about the cost of SSL connections 
An SSL connection takes some memory when it exists and during handshakes.
We measured up to 16kB for an established endpoint, and up to 76 extra kB
during a handshake. The SSL layer stores these values into the global
struct during initialization. If other SSL libs are used, it's easy to
change these values. Anyway they'll only be used as gross estimates in
order to guess the max number of SSL conns that can be established when
memory is constrained and the limit is not set.
2015-01-15 21:34:39 +01:00

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/*
* SSL/TLS transport layer over SOCK_STREAM sockets
*
* Copyright (C) 2012 EXCELIANCE, Emeric Brun <ebrun@exceliance.fr>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*
* Acknowledgement:
* We'd like to specially thank the Stud project authors for a very clean
* and well documented code which helped us understand how the OpenSSL API
* ought to be used in non-blocking mode. This is one difficult part which
* is not easy to get from the OpenSSL doc, and reading the Stud code made
* it much more obvious than the examples in the OpenSSL package. Keep up
* the good works, guys !
*
* Stud is an extremely efficient and scalable SSL/TLS proxy which combines
* particularly well with haproxy. For more info about this project, visit :
* https://github.com/bumptech/stud
*
*/
#define _GNU_SOURCE
#include <ctype.h>
#include <dirent.h>
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <netinet/tcp.h>
#include <openssl/ssl.h>
#include <openssl/x509.h>
#include <openssl/x509v3.h>
#include <openssl/x509.h>
#include <openssl/err.h>
#include <openssl/rand.h>
#if (defined SSL_CTRL_SET_TLSEXT_STATUS_REQ_CB && !defined OPENSSL_NO_OCSP)
#include <openssl/ocsp.h>
#endif
#include <common/buffer.h>
#include <common/compat.h>
#include <common/config.h>
#include <common/debug.h>
#include <common/errors.h>
#include <common/standard.h>
#include <common/ticks.h>
#include <common/time.h>
#include <common/cfgparse.h>
#include <ebsttree.h>
#include <types/global.h>
#include <types/ssl_sock.h>
#include <proto/acl.h>
#include <proto/arg.h>
#include <proto/connection.h>
#include <proto/fd.h>
#include <proto/freq_ctr.h>
#include <proto/frontend.h>
#include <proto/listener.h>
#include <proto/pattern.h>
#include <proto/server.h>
#include <proto/log.h>
#include <proto/proxy.h>
#include <proto/shctx.h>
#include <proto/ssl_sock.h>
#include <proto/task.h>
/* Warning, these are bits, not integers! */
#define SSL_SOCK_ST_FL_VERIFY_DONE 0x00000001
#define SSL_SOCK_ST_FL_16K_WBFSIZE 0x00000002
#define SSL_SOCK_SEND_UNLIMITED 0x00000004
#define SSL_SOCK_RECV_HEARTBEAT 0x00000008
/* bits 0xFFFF0000 are reserved to store verify errors */
/* Verify errors macros */
#define SSL_SOCK_CA_ERROR_TO_ST(e) (((e > 63) ? 63 : e) << (16))
#define SSL_SOCK_CAEDEPTH_TO_ST(d) (((d > 15) ? 15 : d) << (6+16))
#define SSL_SOCK_CRTERROR_TO_ST(e) (((e > 63) ? 63 : e) << (4+6+16))
#define SSL_SOCK_ST_TO_CA_ERROR(s) ((s >> (16)) & 63)
#define SSL_SOCK_ST_TO_CAEDEPTH(s) ((s >> (6+16)) & 15)
#define SSL_SOCK_ST_TO_CRTERROR(s) ((s >> (4+6+16)) & 63)
/* server and bind verify method, it uses a global value as default */
enum {
SSL_SOCK_VERIFY_DEFAULT = 0,
SSL_SOCK_VERIFY_REQUIRED = 1,
SSL_SOCK_VERIFY_OPTIONAL = 2,
SSL_SOCK_VERIFY_NONE = 3,
};
int sslconns = 0;
int totalsslconns = 0;
#ifndef OPENSSL_NO_DH
static DH *local_dh_1024 = NULL;
static DH *local_dh_2048 = NULL;
static DH *local_dh_4096 = NULL;
static DH *local_dh_8192 = NULL;
#endif /* OPENSSL_NO_DH */
#if (defined SSL_CTRL_SET_TLSEXT_STATUS_REQ_CB && !defined OPENSSL_NO_OCSP)
struct certificate_ocsp {
struct ebmb_node key;
unsigned char key_data[OCSP_MAX_CERTID_ASN1_LENGTH];
struct chunk response;
long expire;
};
/*
* This function returns the number of seconds elapsed
* since the Epoch, 1970-01-01 00:00:00 +0000 (UTC) and the
* date presented un ASN1_GENERALIZEDTIME.
*
* In parsing error case, it returns -1.
*/
static long asn1_generalizedtime_to_epoch(ASN1_GENERALIZEDTIME *d)
{
long epoch;
char *p, *end;
const unsigned short month_offset[12] = {
0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334
};
int year, month;
if (!d || (d->type != V_ASN1_GENERALIZEDTIME)) return -1;
p = (char *)d->data;
end = p + d->length;
if (end - p < 4) return -1;
year = 1000 * (p[0] - '0') + 100 * (p[1] - '0') + 10 * (p[2] - '0') + p[3] - '0';
p += 4;
if (end - p < 2) return -1;
month = 10 * (p[0] - '0') + p[1] - '0';
if (month < 1 || month > 12) return -1;
/* Compute the number of seconds since 1 jan 1970 and the beginning of current month
We consider leap years and the current month (<marsh or not) */
epoch = ( ((year - 1970) * 365)
+ ((year - (month < 3)) / 4 - (year - (month < 3)) / 100 + (year - (month < 3)) / 400)
- ((1970 - 1) / 4 - (1970 - 1) / 100 + (1970 - 1) / 400)
+ month_offset[month-1]
) * 24 * 60 * 60;
p += 2;
if (end - p < 2) return -1;
/* Add the number of seconds of completed days of current month */
epoch += (10 * (p[0] - '0') + p[1] - '0' - 1) * 24 * 60 * 60;
p += 2;
if (end - p < 2) return -1;
/* Add the completed hours of the current day */
epoch += (10 * (p[0] - '0') + p[1] - '0') * 60 * 60;
p += 2;
if (end - p < 2) return -1;
/* Add the completed minutes of the current hour */
epoch += (10 * (p[0] - '0') + p[1] - '0') * 60;
p += 2;
if (p == end) return -1;
/* Test if there is available seconds */
if (p[0] < '0' || p[0] > '9')
goto nosec;
if (end - p < 2) return -1;
/* Add the seconds of the current minute */
epoch += 10 * (p[0] - '0') + p[1] - '0';
p += 2;
if (p == end) return -1;
/* Ignore seconds float part if present */
if (p[0] == '.') {
do {
if (++p == end) return -1;
} while (p[0] >= '0' && p[0] <= '9');
}
nosec:
if (p[0] == 'Z') {
if (end - p != 1) return -1;
return epoch;
}
else if (p[0] == '+') {
if (end - p != 5) return -1;
/* Apply timezone offset */
return epoch - ((10 * (p[1] - '0') + p[2] - '0') * 60 + (10 * (p[3] - '0') + p[4] - '0')) * 60;
}
else if (p[0] == '-') {
if (end - p != 5) return -1;
/* Apply timezone offset */
return epoch + ((10 * (p[1] - '0') + p[2] - '0') * 60 + (10 * (p[3] - '0') + p[4] - '0')) * 60;
}
return -1;
}
static struct eb_root cert_ocsp_tree = EB_ROOT_UNIQUE;
/* This function starts to check if the OCSP response (in DER format) contained
* in chunk 'ocsp_response' is valid (else exits on error).
* If 'cid' is not NULL, it will be compared to the OCSP certificate ID
* contained in the OCSP Response and exits on error if no match.
* If it's a valid OCSP Response:
* If 'ocsp' is not NULL, the chunk is copied in the OCSP response's container
* pointed by 'ocsp'.
* If 'ocsp' is NULL, the function looks up into the OCSP response's
* containers tree (using as index the ASN1 form of the OCSP Certificate ID extracted
* from the response) and exits on error if not found. Finally, If an OCSP response is
* already present in the container, it will be overwritten.
*
* Note: OCSP response containing more than one OCSP Single response is not
* considered valid.
*
* Returns 0 on success, 1 in error case.
*/
static int ssl_sock_load_ocsp_response(struct chunk *ocsp_response, struct certificate_ocsp *ocsp, OCSP_CERTID *cid, char **err)
{
OCSP_RESPONSE *resp;
OCSP_BASICRESP *bs = NULL;
OCSP_SINGLERESP *sr;
unsigned char *p = (unsigned char *)ocsp_response->str;
int rc , count_sr;
ASN1_GENERALIZEDTIME *revtime, *thisupd, *nextupd = NULL;
int reason;
int ret = 1;
resp = d2i_OCSP_RESPONSE(NULL, (const unsigned char **)&p, ocsp_response->len);
if (!resp) {
memprintf(err, "Unable to parse OCSP response");
goto out;
}
rc = OCSP_response_status(resp);
if (rc != OCSP_RESPONSE_STATUS_SUCCESSFUL) {
memprintf(err, "OCSP response status not successful");
goto out;
}
bs = OCSP_response_get1_basic(resp);
if (!bs) {
memprintf(err, "Failed to get basic response from OCSP Response");
goto out;
}
count_sr = OCSP_resp_count(bs);
if (count_sr > 1) {
memprintf(err, "OCSP response ignored because contains multiple single responses (%d)", count_sr);
goto out;
}
sr = OCSP_resp_get0(bs, 0);
if (!sr) {
memprintf(err, "Failed to get OCSP single response");
goto out;
}
rc = OCSP_single_get0_status(sr, &reason, &revtime, &thisupd, &nextupd);
if (rc != V_OCSP_CERTSTATUS_GOOD) {
memprintf(err, "OCSP single response: certificate status not good");
goto out;
}
if (!nextupd) {
memprintf(err, "OCSP single response: missing nextupdate");
goto out;
}
rc = OCSP_check_validity(thisupd, nextupd, OCSP_MAX_RESPONSE_TIME_SKEW, -1);
if (!rc) {
memprintf(err, "OCSP single response: no longer valid.");
goto out;
}
if (cid) {
if (OCSP_id_cmp(sr->certId, cid)) {
memprintf(err, "OCSP single response: Certificate ID does not match certificate and issuer");
goto out;
}
}
if (!ocsp) {
unsigned char key[OCSP_MAX_CERTID_ASN1_LENGTH];
unsigned char *p;
rc = i2d_OCSP_CERTID(sr->certId, NULL);
if (!rc) {
memprintf(err, "OCSP single response: Unable to encode Certificate ID");
goto out;
}
if (rc > OCSP_MAX_CERTID_ASN1_LENGTH) {
memprintf(err, "OCSP single response: Certificate ID too long");
goto out;
}
p = key;
memset(key, 0, OCSP_MAX_CERTID_ASN1_LENGTH);
i2d_OCSP_CERTID(sr->certId, &p);
ocsp = (struct certificate_ocsp *)ebmb_lookup(&cert_ocsp_tree, key, OCSP_MAX_CERTID_ASN1_LENGTH);
if (!ocsp) {
memprintf(err, "OCSP single response: Certificate ID does not match any certificate or issuer");
goto out;
}
}
/* According to comments on "chunk_dup", the
previous chunk buffer will be freed */
if (!chunk_dup(&ocsp->response, ocsp_response)) {
memprintf(err, "OCSP response: Memory allocation error");
goto out;
}
ocsp->expire = asn1_generalizedtime_to_epoch(nextupd) - OCSP_MAX_RESPONSE_TIME_SKEW;
ret = 0;
out:
if (bs)
OCSP_BASICRESP_free(bs);
if (resp)
OCSP_RESPONSE_free(resp);
return ret;
}
/*
* External function use to update the OCSP response in the OCSP response's
* containers tree. The chunk 'ocsp_response' must contain the OCSP response
* to update in DER format.
*
* Returns 0 on success, 1 in error case.
*/
int ssl_sock_update_ocsp_response(struct chunk *ocsp_response, char **err)
{
return ssl_sock_load_ocsp_response(ocsp_response, NULL, NULL, err);
}
/*
* This function load the OCSP Resonse in DER format contained in file at
* path 'ocsp_path' and call 'ssl_sock_load_ocsp_response'
*
* Returns 0 on success, 1 in error case.
*/
static int ssl_sock_load_ocsp_response_from_file(const char *ocsp_path, struct certificate_ocsp *ocsp, OCSP_CERTID *cid, char **err)
{
int fd = -1;
int r = 0;
int ret = 1;
fd = open(ocsp_path, O_RDONLY);
if (fd == -1) {
memprintf(err, "Error opening OCSP response file");
goto end;
}
trash.len = 0;
while (trash.len < trash.size) {
r = read(fd, trash.str + trash.len, trash.size - trash.len);
if (r < 0) {
if (errno == EINTR)
continue;
memprintf(err, "Error reading OCSP response from file");
goto end;
}
else if (r == 0) {
break;
}
trash.len += r;
}
close(fd);
fd = -1;
ret = ssl_sock_load_ocsp_response(&trash, ocsp, cid, err);
end:
if (fd != -1)
close(fd);
return ret;
}
/*
* Callback used to set OCSP status extension content in server hello.
*/
int ssl_sock_ocsp_stapling_cbk(SSL *ssl, void *arg)
{
struct certificate_ocsp *ocsp = (struct certificate_ocsp *)arg;
char* ssl_buf;
if (!ocsp ||
!ocsp->response.str ||
!ocsp->response.len ||
(ocsp->expire < now.tv_sec))
return SSL_TLSEXT_ERR_NOACK;
ssl_buf = OPENSSL_malloc(ocsp->response.len);
if (!ssl_buf)
return SSL_TLSEXT_ERR_NOACK;
memcpy(ssl_buf, ocsp->response.str, ocsp->response.len);
SSL_set_tlsext_status_ocsp_resp(ssl, ssl_buf, ocsp->response.len);
return SSL_TLSEXT_ERR_OK;
}
/*
* This function enables the handling of OCSP status extension on 'ctx' if a
* file name 'cert_path' suffixed using ".ocsp" is present.
* To enable OCSP status extension, the issuer's certificate is mandatory.
* It should be present in the certificate's extra chain builded from file
* 'cert_path'. If not found, the issuer certificate is loaded from a file
* named 'cert_path' suffixed using '.issuer'.
*
* In addition, ".ocsp" file content is loaded as a DER format of an OCSP
* response. If file is empty or content is not a valid OCSP response,
* OCSP status extension is enabled but OCSP response is ignored (a warning
* is displayed).
*
* Returns 1 if no ".ocsp" file found, 0 if OCSP status extension is
* succesfully enabled, or -1 in other error case.
*/
static int ssl_sock_load_ocsp(SSL_CTX *ctx, const char *cert_path)
{
BIO *in = NULL;
X509 *x, *xi = NULL, *issuer = NULL;
STACK_OF(X509) *chain = NULL;
OCSP_CERTID *cid = NULL;
SSL *ssl;
char ocsp_path[MAXPATHLEN+1];
int i, ret = -1;
struct stat st;
struct certificate_ocsp *ocsp = NULL, *iocsp;
char *warn = NULL;
unsigned char *p;
snprintf(ocsp_path, MAXPATHLEN+1, "%s.ocsp", cert_path);
if (stat(ocsp_path, &st))
return 1;
ssl = SSL_new(ctx);
if (!ssl)
goto out;
x = SSL_get_certificate(ssl);
if (!x)
goto out;
/* Try to lookup for issuer in certificate extra chain */
#ifdef SSL_CTRL_GET_EXTRA_CHAIN_CERTS
SSL_CTX_get_extra_chain_certs(ctx, &chain);
#else
chain = ctx->extra_certs;
#endif
for (i = 0; i < sk_X509_num(chain); i++) {
issuer = sk_X509_value(chain, i);
if (X509_check_issued(issuer, x) == X509_V_OK)
break;
else
issuer = NULL;
}
/* If not found try to load issuer from a suffixed file */
if (!issuer) {
char issuer_path[MAXPATHLEN+1];
in = BIO_new(BIO_s_file());
if (!in)
goto out;
snprintf(issuer_path, MAXPATHLEN+1, "%s.issuer", cert_path);
if (BIO_read_filename(in, issuer_path) <= 0)
goto out;
xi = PEM_read_bio_X509_AUX(in, NULL, ctx->default_passwd_callback, ctx->default_passwd_callback_userdata);
if (!xi)
goto out;
if (X509_check_issued(xi, x) != X509_V_OK)
goto out;
issuer = xi;
}
cid = OCSP_cert_to_id(0, x, issuer);
if (!cid)
goto out;
i = i2d_OCSP_CERTID(cid, NULL);
if (!i || (i > OCSP_MAX_CERTID_ASN1_LENGTH))
goto out;
ocsp = calloc(1, sizeof(struct certificate_ocsp));
if (!ocsp)
goto out;
p = ocsp->key_data;
i2d_OCSP_CERTID(cid, &p);
iocsp = (struct certificate_ocsp *)ebmb_insert(&cert_ocsp_tree, &ocsp->key, OCSP_MAX_CERTID_ASN1_LENGTH);
if (iocsp == ocsp)
ocsp = NULL;
SSL_CTX_set_tlsext_status_cb(ctx, ssl_sock_ocsp_stapling_cbk);
SSL_CTX_set_tlsext_status_arg(ctx, iocsp);
ret = 0;
warn = NULL;
if (ssl_sock_load_ocsp_response_from_file(ocsp_path, iocsp, cid, &warn)) {
memprintf(&warn, "Loading '%s': %s. Content will be ignored", ocsp_path, warn ? warn : "failure");
Warning("%s.\n", warn);
}
out:
if (ssl)
SSL_free(ssl);
if (in)
BIO_free(in);
if (xi)
X509_free(xi);
if (cid)
OCSP_CERTID_free(cid);
if (ocsp)
free(ocsp);
if (warn)
free(warn);
return ret;
}
#endif
void ssl_sock_infocbk(const SSL *ssl, int where, int ret)
{
struct connection *conn = (struct connection *)SSL_get_app_data(ssl);
(void)ret; /* shut gcc stupid warning */
BIO *write_bio;
if (where & SSL_CB_HANDSHAKE_START) {
/* Disable renegotiation (CVE-2009-3555) */
if (conn->flags & CO_FL_CONNECTED) {
conn->flags |= CO_FL_ERROR;
conn->err_code = CO_ER_SSL_RENEG;
}
}
if ((where & SSL_CB_ACCEPT_LOOP) == SSL_CB_ACCEPT_LOOP) {
if (!(conn->xprt_st & SSL_SOCK_ST_FL_16K_WBFSIZE)) {
/* Long certificate chains optimz
If write and read bios are differents, we
consider that the buffering was activated,
so we rise the output buffer size from 4k
to 16k */
write_bio = SSL_get_wbio(ssl);
if (write_bio != SSL_get_rbio(ssl)) {
BIO_set_write_buffer_size(write_bio, 16384);
conn->xprt_st |= SSL_SOCK_ST_FL_16K_WBFSIZE;
}
}
}
}
/* Callback is called for each certificate of the chain during a verify
ok is set to 1 if preverify detect no error on current certificate.
Returns 0 to break the handshake, 1 otherwise. */
int ssl_sock_bind_verifycbk(int ok, X509_STORE_CTX *x_store)
{
SSL *ssl;
struct connection *conn;
int err, depth;
ssl = X509_STORE_CTX_get_ex_data(x_store, SSL_get_ex_data_X509_STORE_CTX_idx());
conn = (struct connection *)SSL_get_app_data(ssl);
conn->xprt_st |= SSL_SOCK_ST_FL_VERIFY_DONE;
if (ok) /* no errors */
return ok;
depth = X509_STORE_CTX_get_error_depth(x_store);
err = X509_STORE_CTX_get_error(x_store);
/* check if CA error needs to be ignored */
if (depth > 0) {
if (!SSL_SOCK_ST_TO_CA_ERROR(conn->xprt_st)) {
conn->xprt_st |= SSL_SOCK_CA_ERROR_TO_ST(err);
conn->xprt_st |= SSL_SOCK_CAEDEPTH_TO_ST(depth);
}
if (objt_listener(conn->target)->bind_conf->ca_ignerr & (1ULL << err)) {
ERR_clear_error();
return 1;
}
conn->err_code = CO_ER_SSL_CA_FAIL;
return 0;
}
if (!SSL_SOCK_ST_TO_CRTERROR(conn->xprt_st))
conn->xprt_st |= SSL_SOCK_CRTERROR_TO_ST(err);
/* check if certificate error needs to be ignored */
if (objt_listener(conn->target)->bind_conf->crt_ignerr & (1ULL << err)) {
ERR_clear_error();
return 1;
}
conn->err_code = CO_ER_SSL_CRT_FAIL;
return 0;
}
/* Callback is called for ssl protocol analyse */
void ssl_sock_msgcbk(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg)
{
#ifdef TLS1_RT_HEARTBEAT
/* test heartbeat received (write_p is set to 0
for a received record) */
if ((content_type == TLS1_RT_HEARTBEAT) && (write_p == 0)) {
struct connection *conn = (struct connection *)SSL_get_app_data(ssl);
const unsigned char *p = buf;
unsigned int payload;
conn->xprt_st |= SSL_SOCK_RECV_HEARTBEAT;
/* Check if this is a CVE-2014-0160 exploitation attempt. */
if (*p != TLS1_HB_REQUEST)
return;
if (len < 1 + 2 + 16) /* 1 type + 2 size + 0 payload + 16 padding */
goto kill_it;
payload = (p[1] * 256) + p[2];
if (3 + payload + 16 <= len)
return; /* OK no problem */
kill_it:
/* We have a clear heartbleed attack (CVE-2014-0160), the
* advertised payload is larger than the advertised packet
* length, so we have garbage in the buffer between the
* payload and the end of the buffer (p+len). We can't know
* if the SSL stack is patched, and we don't know if we can
* safely wipe out the area between p+3+len and payload.
* So instead, we prevent the response from being sent by
* setting the max_send_fragment to 0 and we report an SSL
* error, which will kill this connection. It will be reported
* above as SSL_ERROR_SSL while an other handshake failure with
* a heartbeat message will be reported as SSL_ERROR_SYSCALL.
*/
ssl->max_send_fragment = 0;
SSLerr(SSL_F_TLS1_HEARTBEAT, SSL_R_SSL_HANDSHAKE_FAILURE);
return;
}
#endif
}
#ifdef OPENSSL_NPN_NEGOTIATED
/* This callback is used so that the server advertises the list of
* negociable protocols for NPN.
*/
static int ssl_sock_advertise_npn_protos(SSL *s, const unsigned char **data,
unsigned int *len, void *arg)
{
struct bind_conf *conf = arg;
*data = (const unsigned char *)conf->npn_str;
*len = conf->npn_len;
return SSL_TLSEXT_ERR_OK;
}
#endif
#ifdef TLSEXT_TYPE_application_layer_protocol_negotiation
/* This callback is used so that the server advertises the list of
* negociable protocols for ALPN.
*/
static int ssl_sock_advertise_alpn_protos(SSL *s, const unsigned char **out,
unsigned char *outlen,
const unsigned char *server,
unsigned int server_len, void *arg)
{
struct bind_conf *conf = arg;
if (SSL_select_next_proto((unsigned char**) out, outlen, (const unsigned char *)conf->alpn_str,
conf->alpn_len, server, server_len) != OPENSSL_NPN_NEGOTIATED) {
return SSL_TLSEXT_ERR_NOACK;
}
return SSL_TLSEXT_ERR_OK;
}
#endif
#ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
/* Sets the SSL ctx of <ssl> to match the advertised server name. Returns a
* warning when no match is found, which implies the default (first) cert
* will keep being used.
*/
static int ssl_sock_switchctx_cbk(SSL *ssl, int *al, struct bind_conf *s)
{
const char *servername;
const char *wildp = NULL;
struct ebmb_node *node, *n;
int i;
(void)al; /* shut gcc stupid warning */
servername = SSL_get_servername(ssl, TLSEXT_NAMETYPE_host_name);
if (!servername) {
return (s->strict_sni ?
SSL_TLSEXT_ERR_ALERT_FATAL :
SSL_TLSEXT_ERR_NOACK);
}
for (i = 0; i < trash.size; i++) {
if (!servername[i])
break;
trash.str[i] = tolower(servername[i]);
if (!wildp && (trash.str[i] == '.'))
wildp = &trash.str[i];
}
trash.str[i] = 0;
/* lookup in full qualified names */
node = ebst_lookup(&s->sni_ctx, trash.str);
/* lookup a not neg filter */
for (n = node; n; n = ebmb_next_dup(n)) {
if (!container_of(n, struct sni_ctx, name)->neg) {
node = n;
break;
}
}
if (!node && wildp) {
/* lookup in wildcards names */
node = ebst_lookup(&s->sni_w_ctx, wildp);
}
if (!node || container_of(node, struct sni_ctx, name)->neg) {
return (s->strict_sni ?
SSL_TLSEXT_ERR_ALERT_FATAL :
SSL_TLSEXT_ERR_ALERT_WARNING);
}
/* switch ctx */
SSL_set_SSL_CTX(ssl, container_of(node, struct sni_ctx, name)->ctx);
return SSL_TLSEXT_ERR_OK;
}
#endif /* SSL_CTRL_SET_TLSEXT_HOSTNAME */
#ifndef OPENSSL_NO_DH
static DH * ssl_get_dh_1024(void)
{
#if (OPENSSL_VERSION_NUMBER < 0x0090801fL || defined OPENSSL_IS_BORINGSSL)
static const unsigned char rfc_2409_prime_1024[] = {
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xC9,0x0F,0xDA,0xA2,
0x21,0x68,0xC2,0x34,0xC4,0xC6,0x62,0x8B,0x80,0xDC,0x1C,0xD1,
0x29,0x02,0x4E,0x08,0x8A,0x67,0xCC,0x74,0x02,0x0B,0xBE,0xA6,
0x3B,0x13,0x9B,0x22,0x51,0x4A,0x08,0x79,0x8E,0x34,0x04,0xDD,
0xEF,0x95,0x19,0xB3,0xCD,0x3A,0x43,0x1B,0x30,0x2B,0x0A,0x6D,
0xF2,0x5F,0x14,0x37,0x4F,0xE1,0x35,0x6D,0x6D,0x51,0xC2,0x45,
0xE4,0x85,0xB5,0x76,0x62,0x5E,0x7E,0xC6,0xF4,0x4C,0x42,0xE9,
0xA6,0x37,0xED,0x6B,0x0B,0xFF,0x5C,0xB6,0xF4,0x06,0xB7,0xED,
0xEE,0x38,0x6B,0xFB,0x5A,0x89,0x9F,0xA5,0xAE,0x9F,0x24,0x11,
0x7C,0x4B,0x1F,0xE6,0x49,0x28,0x66,0x51,0xEC,0xE6,0x53,0x81,
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
};
#endif
DH *dh = DH_new();
if (dh) {
#if (OPENSSL_VERSION_NUMBER >= 0x0090801fL && !defined OPENSSL_IS_BORINGSSL)
dh->p = get_rfc2409_prime_1024(NULL);
#else
dh->p = BN_bin2bn(rfc_2409_prime_1024, sizeof rfc_2409_prime_1024, NULL);
#endif
/* See RFC 2409, Section 6 "Oakley Groups"
for the reason why 2 is used as generator.
*/
BN_dec2bn(&dh->g, "2");
if (!dh->p || !dh->g) {
DH_free(dh);
dh = NULL;
}
}
return dh;
}
static DH *ssl_get_dh_2048(void)
{
#if (OPENSSL_VERSION_NUMBER < 0x0090801fL || defined OPENSSL_IS_BORINGSSL)
static const unsigned char rfc_3526_prime_2048[] = {
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xC9,0x0F,0xDA,0xA2,
0x21,0x68,0xC2,0x34,0xC4,0xC6,0x62,0x8B,0x80,0xDC,0x1C,0xD1,
0x29,0x02,0x4E,0x08,0x8A,0x67,0xCC,0x74,0x02,0x0B,0xBE,0xA6,
0x3B,0x13,0x9B,0x22,0x51,0x4A,0x08,0x79,0x8E,0x34,0x04,0xDD,
0xEF,0x95,0x19,0xB3,0xCD,0x3A,0x43,0x1B,0x30,0x2B,0x0A,0x6D,
0xF2,0x5F,0x14,0x37,0x4F,0xE1,0x35,0x6D,0x6D,0x51,0xC2,0x45,
0xE4,0x85,0xB5,0x76,0x62,0x5E,0x7E,0xC6,0xF4,0x4C,0x42,0xE9,
0xA6,0x37,0xED,0x6B,0x0B,0xFF,0x5C,0xB6,0xF4,0x06,0xB7,0xED,
0xEE,0x38,0x6B,0xFB,0x5A,0x89,0x9F,0xA5,0xAE,0x9F,0x24,0x11,
0x7C,0x4B,0x1F,0xE6,0x49,0x28,0x66,0x51,0xEC,0xE4,0x5B,0x3D,
0xC2,0x00,0x7C,0xB8,0xA1,0x63,0xBF,0x05,0x98,0xDA,0x48,0x36,
0x1C,0x55,0xD3,0x9A,0x69,0x16,0x3F,0xA8,0xFD,0x24,0xCF,0x5F,
0x83,0x65,0x5D,0x23,0xDC,0xA3,0xAD,0x96,0x1C,0x62,0xF3,0x56,
0x20,0x85,0x52,0xBB,0x9E,0xD5,0x29,0x07,0x70,0x96,0x96,0x6D,
0x67,0x0C,0x35,0x4E,0x4A,0xBC,0x98,0x04,0xF1,0x74,0x6C,0x08,
0xCA,0x18,0x21,0x7C,0x32,0x90,0x5E,0x46,0x2E,0x36,0xCE,0x3B,
0xE3,0x9E,0x77,0x2C,0x18,0x0E,0x86,0x03,0x9B,0x27,0x83,0xA2,
0xEC,0x07,0xA2,0x8F,0xB5,0xC5,0x5D,0xF0,0x6F,0x4C,0x52,0xC9,
0xDE,0x2B,0xCB,0xF6,0x95,0x58,0x17,0x18,0x39,0x95,0x49,0x7C,
0xEA,0x95,0x6A,0xE5,0x15,0xD2,0x26,0x18,0x98,0xFA,0x05,0x10,
0x15,0x72,0x8E,0x5A,0x8A,0xAC,0xAA,0x68,0xFF,0xFF,0xFF,0xFF,
0xFF,0xFF,0xFF,0xFF,
};
#endif
DH *dh = DH_new();
if (dh) {
#if (OPENSSL_VERSION_NUMBER >= 0x0090801fL && !defined OPENSSL_IS_BORINGSSL)
dh->p = get_rfc3526_prime_2048(NULL);
#else
dh->p = BN_bin2bn(rfc_3526_prime_2048, sizeof rfc_3526_prime_2048, NULL);
#endif
/* See RFC 3526, Section 3 "2048-bit MODP Group"
for the reason why 2 is used as generator.
*/
BN_dec2bn(&dh->g, "2");
if (!dh->p || !dh->g) {
DH_free(dh);
dh = NULL;
}
}
return dh;
}
static DH *ssl_get_dh_4096(void)
{
#if (OPENSSL_VERSION_NUMBER < 0x0090801fL || defined OPENSSL_IS_BORINGSSL)
static const unsigned char rfc_3526_prime_4096[] = {
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xC9,0x0F,0xDA,0xA2,
0x21,0x68,0xC2,0x34,0xC4,0xC6,0x62,0x8B,0x80,0xDC,0x1C,0xD1,
0x29,0x02,0x4E,0x08,0x8A,0x67,0xCC,0x74,0x02,0x0B,0xBE,0xA6,
0x3B,0x13,0x9B,0x22,0x51,0x4A,0x08,0x79,0x8E,0x34,0x04,0xDD,
0xEF,0x95,0x19,0xB3,0xCD,0x3A,0x43,0x1B,0x30,0x2B,0x0A,0x6D,
0xF2,0x5F,0x14,0x37,0x4F,0xE1,0x35,0x6D,0x6D,0x51,0xC2,0x45,
0xE4,0x85,0xB5,0x76,0x62,0x5E,0x7E,0xC6,0xF4,0x4C,0x42,0xE9,
0xA6,0x37,0xED,0x6B,0x0B,0xFF,0x5C,0xB6,0xF4,0x06,0xB7,0xED,
0xEE,0x38,0x6B,0xFB,0x5A,0x89,0x9F,0xA5,0xAE,0x9F,0x24,0x11,
0x7C,0x4B,0x1F,0xE6,0x49,0x28,0x66,0x51,0xEC,0xE4,0x5B,0x3D,
0xC2,0x00,0x7C,0xB8,0xA1,0x63,0xBF,0x05,0x98,0xDA,0x48,0x36,
0x1C,0x55,0xD3,0x9A,0x69,0x16,0x3F,0xA8,0xFD,0x24,0xCF,0x5F,
0x83,0x65,0x5D,0x23,0xDC,0xA3,0xAD,0x96,0x1C,0x62,0xF3,0x56,
0x20,0x85,0x52,0xBB,0x9E,0xD5,0x29,0x07,0x70,0x96,0x96,0x6D,
0x67,0x0C,0x35,0x4E,0x4A,0xBC,0x98,0x04,0xF1,0x74,0x6C,0x08,
0xCA,0x18,0x21,0x7C,0x32,0x90,0x5E,0x46,0x2E,0x36,0xCE,0x3B,
0xE3,0x9E,0x77,0x2C,0x18,0x0E,0x86,0x03,0x9B,0x27,0x83,0xA2,
0xEC,0x07,0xA2,0x8F,0xB5,0xC5,0x5D,0xF0,0x6F,0x4C,0x52,0xC9,
0xDE,0x2B,0xCB,0xF6,0x95,0x58,0x17,0x18,0x39,0x95,0x49,0x7C,
0xEA,0x95,0x6A,0xE5,0x15,0xD2,0x26,0x18,0x98,0xFA,0x05,0x10,
0x15,0x72,0x8E,0x5A,0x8A,0xAA,0xC4,0x2D,0xAD,0x33,0x17,0x0D,
0x04,0x50,0x7A,0x33,0xA8,0x55,0x21,0xAB,0xDF,0x1C,0xBA,0x64,
0xEC,0xFB,0x85,0x04,0x58,0xDB,0xEF,0x0A,0x8A,0xEA,0x71,0x57,
0x5D,0x06,0x0C,0x7D,0xB3,0x97,0x0F,0x85,0xA6,0xE1,0xE4,0xC7,
0xAB,0xF5,0xAE,0x8C,0xDB,0x09,0x33,0xD7,0x1E,0x8C,0x94,0xE0,
0x4A,0x25,0x61,0x9D,0xCE,0xE3,0xD2,0x26,0x1A,0xD2,0xEE,0x6B,
0xF1,0x2F,0xFA,0x06,0xD9,0x8A,0x08,0x64,0xD8,0x76,0x02,0x73,
0x3E,0xC8,0x6A,0x64,0x52,0x1F,0x2B,0x18,0x17,0x7B,0x20,0x0C,
0xBB,0xE1,0x17,0x57,0x7A,0x61,0x5D,0x6C,0x77,0x09,0x88,0xC0,
0xBA,0xD9,0x46,0xE2,0x08,0xE2,0x4F,0xA0,0x74,0xE5,0xAB,0x31,
0x43,0xDB,0x5B,0xFC,0xE0,0xFD,0x10,0x8E,0x4B,0x82,0xD1,0x20,
0xA9,0x21,0x08,0x01,0x1A,0x72,0x3C,0x12,0xA7,0x87,0xE6,0xD7,
0x88,0x71,0x9A,0x10,0xBD,0xBA,0x5B,0x26,0x99,0xC3,0x27,0x18,
0x6A,0xF4,0xE2,0x3C,0x1A,0x94,0x68,0x34,0xB6,0x15,0x0B,0xDA,
0x25,0x83,0xE9,0xCA,0x2A,0xD4,0x4C,0xE8,0xDB,0xBB,0xC2,0xDB,
0x04,0xDE,0x8E,0xF9,0x2E,0x8E,0xFC,0x14,0x1F,0xBE,0xCA,0xA6,
0x28,0x7C,0x59,0x47,0x4E,0x6B,0xC0,0x5D,0x99,0xB2,0x96,0x4F,
0xA0,0x90,0xC3,0xA2,0x23,0x3B,0xA1,0x86,0x51,0x5B,0xE7,0xED,
0x1F,0x61,0x29,0x70,0xCE,0xE2,0xD7,0xAF,0xB8,0x1B,0xDD,0x76,
0x21,0x70,0x48,0x1C,0xD0,0x06,0x91,0x27,0xD5,0xB0,0x5A,0xA9,
0x93,0xB4,0xEA,0x98,0x8D,0x8F,0xDD,0xC1,0x86,0xFF,0xB7,0xDC,
0x90,0xA6,0xC0,0x8F,0x4D,0xF4,0x35,0xC9,0x34,0x06,0x31,0x99,
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
};
#endif
DH *dh = DH_new();
if (dh) {
#if (OPENSSL_VERSION_NUMBER >= 0x0090801fL && !defined OPENSSL_IS_BORINGSSL)
dh->p = get_rfc3526_prime_4096(NULL);
#else
dh->p = BN_bin2bn(rfc_3526_prime_4096, sizeof rfc_3526_prime_4096, NULL);
#endif
/* See RFC 3526, Section 5 "4096-bit MODP Group"
for the reason why 2 is used as generator.
*/
BN_dec2bn(&dh->g, "2");
if (!dh->p || !dh->g) {
DH_free(dh);
dh = NULL;
}
}
return dh;
}
static DH *ssl_get_dh_8192(void)
{
#if (OPENSSL_VERSION_NUMBER < 0x0090801fL || defined OPENSSL_IS_BORINGSSL)
static const unsigned char rfc_3526_prime_8192[] = {
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xC9,0x0F,0xDA,0xA2,
0x21,0x68,0xC2,0x34,0xC4,0xC6,0x62,0x8B,0x80,0xDC,0x1C,0xD1,
0x29,0x02,0x4E,0x08,0x8A,0x67,0xCC,0x74,0x02,0x0B,0xBE,0xA6,
0x3B,0x13,0x9B,0x22,0x51,0x4A,0x08,0x79,0x8E,0x34,0x04,0xDD,
0xEF,0x95,0x19,0xB3,0xCD,0x3A,0x43,0x1B,0x30,0x2B,0x0A,0x6D,
0xF2,0x5F,0x14,0x37,0x4F,0xE1,0x35,0x6D,0x6D,0x51,0xC2,0x45,
0xE4,0x85,0xB5,0x76,0x62,0x5E,0x7E,0xC6,0xF4,0x4C,0x42,0xE9,
0xA6,0x37,0xED,0x6B,0x0B,0xFF,0x5C,0xB6,0xF4,0x06,0xB7,0xED,
0xEE,0x38,0x6B,0xFB,0x5A,0x89,0x9F,0xA5,0xAE,0x9F,0x24,0x11,
0x7C,0x4B,0x1F,0xE6,0x49,0x28,0x66,0x51,0xEC,0xE4,0x5B,0x3D,
0xC2,0x00,0x7C,0xB8,0xA1,0x63,0xBF,0x05,0x98,0xDA,0x48,0x36,
0x1C,0x55,0xD3,0x9A,0x69,0x16,0x3F,0xA8,0xFD,0x24,0xCF,0x5F,
0x83,0x65,0x5D,0x23,0xDC,0xA3,0xAD,0x96,0x1C,0x62,0xF3,0x56,
0x20,0x85,0x52,0xBB,0x9E,0xD5,0x29,0x07,0x70,0x96,0x96,0x6D,
0x67,0x0C,0x35,0x4E,0x4A,0xBC,0x98,0x04,0xF1,0x74,0x6C,0x08,
0xCA,0x18,0x21,0x7C,0x32,0x90,0x5E,0x46,0x2E,0x36,0xCE,0x3B,
0xE3,0x9E,0x77,0x2C,0x18,0x0E,0x86,0x03,0x9B,0x27,0x83,0xA2,
0xEC,0x07,0xA2,0x8F,0xB5,0xC5,0x5D,0xF0,0x6F,0x4C,0x52,0xC9,
0xDE,0x2B,0xCB,0xF6,0x95,0x58,0x17,0x18,0x39,0x95,0x49,0x7C,
0xEA,0x95,0x6A,0xE5,0x15,0xD2,0x26,0x18,0x98,0xFA,0x05,0x10,
0x15,0x72,0x8E,0x5A,0x8A,0xAA,0xC4,0x2D,0xAD,0x33,0x17,0x0D,
0x04,0x50,0x7A,0x33,0xA8,0x55,0x21,0xAB,0xDF,0x1C,0xBA,0x64,
0xEC,0xFB,0x85,0x04,0x58,0xDB,0xEF,0x0A,0x8A,0xEA,0x71,0x57,
0x5D,0x06,0x0C,0x7D,0xB3,0x97,0x0F,0x85,0xA6,0xE1,0xE4,0xC7,
0xAB,0xF5,0xAE,0x8C,0xDB,0x09,0x33,0xD7,0x1E,0x8C,0x94,0xE0,
0x4A,0x25,0x61,0x9D,0xCE,0xE3,0xD2,0x26,0x1A,0xD2,0xEE,0x6B,
0xF1,0x2F,0xFA,0x06,0xD9,0x8A,0x08,0x64,0xD8,0x76,0x02,0x73,
0x3E,0xC8,0x6A,0x64,0x52,0x1F,0x2B,0x18,0x17,0x7B,0x20,0x0C,
0xBB,0xE1,0x17,0x57,0x7A,0x61,0x5D,0x6C,0x77,0x09,0x88,0xC0,
0xBA,0xD9,0x46,0xE2,0x08,0xE2,0x4F,0xA0,0x74,0xE5,0xAB,0x31,
0x43,0xDB,0x5B,0xFC,0xE0,0xFD,0x10,0x8E,0x4B,0x82,0xD1,0x20,
0xA9,0x21,0x08,0x01,0x1A,0x72,0x3C,0x12,0xA7,0x87,0xE6,0xD7,
0x88,0x71,0x9A,0x10,0xBD,0xBA,0x5B,0x26,0x99,0xC3,0x27,0x18,
0x6A,0xF4,0xE2,0x3C,0x1A,0x94,0x68,0x34,0xB6,0x15,0x0B,0xDA,
0x25,0x83,0xE9,0xCA,0x2A,0xD4,0x4C,0xE8,0xDB,0xBB,0xC2,0xDB,
0x04,0xDE,0x8E,0xF9,0x2E,0x8E,0xFC,0x14,0x1F,0xBE,0xCA,0xA6,
0x28,0x7C,0x59,0x47,0x4E,0x6B,0xC0,0x5D,0x99,0xB2,0x96,0x4F,
0xA0,0x90,0xC3,0xA2,0x23,0x3B,0xA1,0x86,0x51,0x5B,0xE7,0xED,
0x1F,0x61,0x29,0x70,0xCE,0xE2,0xD7,0xAF,0xB8,0x1B,0xDD,0x76,
0x21,0x70,0x48,0x1C,0xD0,0x06,0x91,0x27,0xD5,0xB0,0x5A,0xA9,
0x93,0xB4,0xEA,0x98,0x8D,0x8F,0xDD,0xC1,0x86,0xFF,0xB7,0xDC,
0x90,0xA6,0xC0,0x8F,0x4D,0xF4,0x35,0xC9,0x34,0x02,0x84,0x92,
0x36,0xC3,0xFA,0xB4,0xD2,0x7C,0x70,0x26,0xC1,0xD4,0xDC,0xB2,
0x60,0x26,0x46,0xDE,0xC9,0x75,0x1E,0x76,0x3D,0xBA,0x37,0xBD,
0xF8,0xFF,0x94,0x06,0xAD,0x9E,0x53,0x0E,0xE5,0xDB,0x38,0x2F,
0x41,0x30,0x01,0xAE,0xB0,0x6A,0x53,0xED,0x90,0x27,0xD8,0x31,
0x17,0x97,0x27,0xB0,0x86,0x5A,0x89,0x18,0xDA,0x3E,0xDB,0xEB,
0xCF,0x9B,0x14,0xED,0x44,0xCE,0x6C,0xBA,0xCE,0xD4,0xBB,0x1B,
0xDB,0x7F,0x14,0x47,0xE6,0xCC,0x25,0x4B,0x33,0x20,0x51,0x51,
0x2B,0xD7,0xAF,0x42,0x6F,0xB8,0xF4,0x01,0x37,0x8C,0xD2,0xBF,
0x59,0x83,0xCA,0x01,0xC6,0x4B,0x92,0xEC,0xF0,0x32,0xEA,0x15,
0xD1,0x72,0x1D,0x03,0xF4,0x82,0xD7,0xCE,0x6E,0x74,0xFE,0xF6,
0xD5,0x5E,0x70,0x2F,0x46,0x98,0x0C,0x82,0xB5,0xA8,0x40,0x31,
0x90,0x0B,0x1C,0x9E,0x59,0xE7,0xC9,0x7F,0xBE,0xC7,0xE8,0xF3,
0x23,0xA9,0x7A,0x7E,0x36,0xCC,0x88,0xBE,0x0F,0x1D,0x45,0xB7,
0xFF,0x58,0x5A,0xC5,0x4B,0xD4,0x07,0xB2,0x2B,0x41,0x54,0xAA,
0xCC,0x8F,0x6D,0x7E,0xBF,0x48,0xE1,0xD8,0x14,0xCC,0x5E,0xD2,
0x0F,0x80,0x37,0xE0,0xA7,0x97,0x15,0xEE,0xF2,0x9B,0xE3,0x28,
0x06,0xA1,0xD5,0x8B,0xB7,0xC5,0xDA,0x76,0xF5,0x50,0xAA,0x3D,
0x8A,0x1F,0xBF,0xF0,0xEB,0x19,0xCC,0xB1,0xA3,0x13,0xD5,0x5C,
0xDA,0x56,0xC9,0xEC,0x2E,0xF2,0x96,0x32,0x38,0x7F,0xE8,0xD7,
0x6E,0x3C,0x04,0x68,0x04,0x3E,0x8F,0x66,0x3F,0x48,0x60,0xEE,
0x12,0xBF,0x2D,0x5B,0x0B,0x74,0x74,0xD6,0xE6,0x94,0xF9,0x1E,
0x6D,0xBE,0x11,0x59,0x74,0xA3,0x92,0x6F,0x12,0xFE,0xE5,0xE4,
0x38,0x77,0x7C,0xB6,0xA9,0x32,0xDF,0x8C,0xD8,0xBE,0xC4,0xD0,
0x73,0xB9,0x31,0xBA,0x3B,0xC8,0x32,0xB6,0x8D,0x9D,0xD3,0x00,
0x74,0x1F,0xA7,0xBF,0x8A,0xFC,0x47,0xED,0x25,0x76,0xF6,0x93,
0x6B,0xA4,0x24,0x66,0x3A,0xAB,0x63,0x9C,0x5A,0xE4,0xF5,0x68,
0x34,0x23,0xB4,0x74,0x2B,0xF1,0xC9,0x78,0x23,0x8F,0x16,0xCB,
0xE3,0x9D,0x65,0x2D,0xE3,0xFD,0xB8,0xBE,0xFC,0x84,0x8A,0xD9,
0x22,0x22,0x2E,0x04,0xA4,0x03,0x7C,0x07,0x13,0xEB,0x57,0xA8,
0x1A,0x23,0xF0,0xC7,0x34,0x73,0xFC,0x64,0x6C,0xEA,0x30,0x6B,
0x4B,0xCB,0xC8,0x86,0x2F,0x83,0x85,0xDD,0xFA,0x9D,0x4B,0x7F,
0xA2,0xC0,0x87,0xE8,0x79,0x68,0x33,0x03,0xED,0x5B,0xDD,0x3A,
0x06,0x2B,0x3C,0xF5,0xB3,0xA2,0x78,0xA6,0x6D,0x2A,0x13,0xF8,
0x3F,0x44,0xF8,0x2D,0xDF,0x31,0x0E,0xE0,0x74,0xAB,0x6A,0x36,
0x45,0x97,0xE8,0x99,0xA0,0x25,0x5D,0xC1,0x64,0xF3,0x1C,0xC5,
0x08,0x46,0x85,0x1D,0xF9,0xAB,0x48,0x19,0x5D,0xED,0x7E,0xA1,
0xB1,0xD5,0x10,0xBD,0x7E,0xE7,0x4D,0x73,0xFA,0xF3,0x6B,0xC3,
0x1E,0xCF,0xA2,0x68,0x35,0x90,0x46,0xF4,0xEB,0x87,0x9F,0x92,
0x40,0x09,0x43,0x8B,0x48,0x1C,0x6C,0xD7,0x88,0x9A,0x00,0x2E,
0xD5,0xEE,0x38,0x2B,0xC9,0x19,0x0D,0xA6,0xFC,0x02,0x6E,0x47,
0x95,0x58,0xE4,0x47,0x56,0x77,0xE9,0xAA,0x9E,0x30,0x50,0xE2,
0x76,0x56,0x94,0xDF,0xC8,0x1F,0x56,0xE8,0x80,0xB9,0x6E,0x71,
0x60,0xC9,0x80,0xDD,0x98,0xED,0xD3,0xDF,0xFF,0xFF,0xFF,0xFF,
0xFF,0xFF,0xFF,0xFF,
};
#endif
DH *dh = DH_new();
if (dh) {
#if (OPENSSL_VERSION_NUMBER >= 0x0090801fL && !defined OPENSSL_IS_BORINGSSL)
dh->p = get_rfc3526_prime_8192(NULL);
#else
dh->p = BN_bin2bn(rfc_3526_prime_8192, sizeof rfc_3526_prime_8192, NULL);
#endif
/* See RFC 3526, Section 7 "8192-bit MODP Group"
for the reason why 2 is used as generator.
*/
BN_dec2bn(&dh->g, "2");
if (!dh->p || !dh->g) {
DH_free(dh);
dh = NULL;
}
}
return dh;
}
/* Returns Diffie-Hellman parameters matching the private key length
but not exceeding global.tune.ssl_default_dh_param */
static DH *ssl_get_tmp_dh(SSL *ssl, int export, int keylen)
{
DH *dh = NULL;
EVP_PKEY *pkey = SSL_get_privatekey(ssl);
int type = pkey ? EVP_PKEY_type(pkey->type) : EVP_PKEY_NONE;
/* The keylen supplied by OpenSSL can only be 512 or 1024.
See ssl3_send_server_key_exchange() in ssl/s3_srvr.c
*/
if (type == EVP_PKEY_RSA || type == EVP_PKEY_DSA) {
keylen = EVP_PKEY_bits(pkey);
}
if (keylen > global.tune.ssl_default_dh_param) {
keylen = global.tune.ssl_default_dh_param;
}
if (keylen >= 8192) {
dh = local_dh_8192;
}
else if (keylen >= 4096) {
dh = local_dh_4096;
}
else if (keylen >= 2048) {
dh = local_dh_2048;
}
else {
dh = local_dh_1024;
}
return dh;
}
/* Loads Diffie-Hellman parameter from a file. Returns 1 if loaded, else -1
if an error occured, and 0 if parameter not found. */
int ssl_sock_load_dh_params(SSL_CTX *ctx, const char *file)
{
int ret = -1;
BIO *in;
DH *dh = NULL;
in = BIO_new(BIO_s_file());
if (in == NULL)
goto end;
if (BIO_read_filename(in, file) <= 0)
goto end;
dh = PEM_read_bio_DHparams(in, NULL, ctx->default_passwd_callback, ctx->default_passwd_callback_userdata);
if (dh) {
ret = 1;
SSL_CTX_set_tmp_dh(ctx, dh);
/* Setting ssl default dh param to the size of the static DH params
found in the file. This way we know that there is no use
complaining later about ssl-default-dh-param not being set. */
global.tune.ssl_default_dh_param = DH_size(dh) * 8;
}
else {
/* Clear openssl global errors stack */
ERR_clear_error();
if (global.tune.ssl_default_dh_param <= 1024) {
/* we are limited to DH parameter of 1024 bits anyway */
local_dh_1024 = ssl_get_dh_1024();
if (local_dh_1024 == NULL)
goto end;
SSL_CTX_set_tmp_dh(ctx, local_dh_1024);
}
else {
SSL_CTX_set_tmp_dh_callback(ctx, ssl_get_tmp_dh);
}
ret = 0; /* DH params not found */
}
end:
if (dh)
DH_free(dh);
if (in)
BIO_free(in);
return ret;
}
#endif
static int ssl_sock_add_cert_sni(SSL_CTX *ctx, struct bind_conf *s, char *name, int order)
{
struct sni_ctx *sc;
int wild = 0, neg = 0;
if (*name == '!') {
neg = 1;
name++;
}
if (*name == '*') {
wild = 1;
name++;
}
/* !* filter is a nop */
if (neg && wild)
return order;
if (*name) {
int j, len;
len = strlen(name);
sc = malloc(sizeof(struct sni_ctx) + len + 1);
for (j = 0; j < len; j++)
sc->name.key[j] = tolower(name[j]);
sc->name.key[len] = 0;
sc->ctx = ctx;
sc->order = order++;
sc->neg = neg;
if (wild)
ebst_insert(&s->sni_w_ctx, &sc->name);
else
ebst_insert(&s->sni_ctx, &sc->name);
}
return order;
}
/* Loads a certificate key and CA chain from a file. Returns 0 on error, -1 if
* an early error happens and the caller must call SSL_CTX_free() by itelf.
*/
static int ssl_sock_load_cert_chain_file(SSL_CTX *ctx, const char *file, struct bind_conf *s, char **sni_filter, int fcount)
{
BIO *in;
X509 *x = NULL, *ca;
int i, err;
int ret = -1;
int order = 0;
X509_NAME *xname;
char *str;
#ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
STACK_OF(GENERAL_NAME) *names;
#endif
in = BIO_new(BIO_s_file());
if (in == NULL)
goto end;
if (BIO_read_filename(in, file) <= 0)
goto end;
x = PEM_read_bio_X509_AUX(in, NULL, ctx->default_passwd_callback, ctx->default_passwd_callback_userdata);
if (x == NULL)
goto end;
if (fcount) {
while (fcount--)
order = ssl_sock_add_cert_sni(ctx, s, sni_filter[fcount], order);
}
else {
#ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
names = X509_get_ext_d2i(x, NID_subject_alt_name, NULL, NULL);
if (names) {
for (i = 0; i < sk_GENERAL_NAME_num(names); i++) {
GENERAL_NAME *name = sk_GENERAL_NAME_value(names, i);
if (name->type == GEN_DNS) {
if (ASN1_STRING_to_UTF8((unsigned char **)&str, name->d.dNSName) >= 0) {
order = ssl_sock_add_cert_sni(ctx, s, str, order);
OPENSSL_free(str);
}
}
}
sk_GENERAL_NAME_pop_free(names, GENERAL_NAME_free);
}
#endif /* SSL_CTRL_SET_TLSEXT_HOSTNAME */
xname = X509_get_subject_name(x);
i = -1;
while ((i = X509_NAME_get_index_by_NID(xname, NID_commonName, i)) != -1) {
X509_NAME_ENTRY *entry = X509_NAME_get_entry(xname, i);
if (ASN1_STRING_to_UTF8((unsigned char **)&str, entry->value) >= 0) {
order = ssl_sock_add_cert_sni(ctx, s, str, order);
OPENSSL_free(str);
}
}
}
ret = 0; /* the caller must not free the SSL_CTX argument anymore */
if (!SSL_CTX_use_certificate(ctx, x))
goto end;
if (ctx->extra_certs != NULL) {
sk_X509_pop_free(ctx->extra_certs, X509_free);
ctx->extra_certs = NULL;
}
while ((ca = PEM_read_bio_X509(in, NULL, ctx->default_passwd_callback, ctx->default_passwd_callback_userdata))) {
if (!SSL_CTX_add_extra_chain_cert(ctx, ca)) {
X509_free(ca);
goto end;
}
}
err = ERR_get_error();
if (!err || (ERR_GET_LIB(err) == ERR_LIB_PEM && ERR_GET_REASON(err) == PEM_R_NO_START_LINE)) {
/* we successfully reached the last cert in the file */
ret = 1;
}
ERR_clear_error();
end:
if (x)
X509_free(x);
if (in)
BIO_free(in);
return ret;
}
static int ssl_sock_load_cert_file(const char *path, struct bind_conf *bind_conf, struct proxy *curproxy, char **sni_filter, int fcount, char **err)
{
int ret;
SSL_CTX *ctx;
ctx = SSL_CTX_new(SSLv23_server_method());
if (!ctx) {
memprintf(err, "%sunable to allocate SSL context for cert '%s'.\n",
err && *err ? *err : "", path);
return 1;
}
if (SSL_CTX_use_PrivateKey_file(ctx, path, SSL_FILETYPE_PEM) <= 0) {
memprintf(err, "%sunable to load SSL private key from PEM file '%s'.\n",
err && *err ? *err : "", path);
SSL_CTX_free(ctx);
return 1;
}
ret = ssl_sock_load_cert_chain_file(ctx, path, bind_conf, sni_filter, fcount);
if (ret <= 0) {
memprintf(err, "%sunable to load SSL certificate from PEM file '%s'.\n",
err && *err ? *err : "", path);
if (ret < 0) /* serious error, must do that ourselves */
SSL_CTX_free(ctx);
return 1;
}
if (SSL_CTX_check_private_key(ctx) <= 0) {
memprintf(err, "%sinconsistencies between private key and certificate loaded from PEM file '%s'.\n",
err && *err ? *err : "", path);
return 1;
}
/* we must not free the SSL_CTX anymore below, since it's already in
* the tree, so it will be discovered and cleaned in time.
*/
#ifndef OPENSSL_NO_DH
ret = ssl_sock_load_dh_params(ctx, path);
if (ret < 0) {
if (err)
memprintf(err, "%sunable to load DH parameters from file '%s'.\n",
*err ? *err : "", path);
return 1;
}
#endif
#if (defined SSL_CTRL_SET_TLSEXT_STATUS_REQ_CB && !defined OPENSSL_NO_OCSP)
ret = ssl_sock_load_ocsp(ctx, path);
if (ret < 0) {
if (err)
memprintf(err, "%s '%s.ocsp' is present and activates OCSP but it is impossible to compute the OCSP certificate ID (maybe the issuer could not be found)'.\n",
*err ? *err : "", path);
return 1;
}
#endif
#ifndef SSL_CTRL_SET_TLSEXT_HOSTNAME
if (bind_conf->default_ctx) {
memprintf(err, "%sthis version of openssl cannot load multiple SSL certificates.\n",
err && *err ? *err : "");
return 1;
}
#endif
if (!bind_conf->default_ctx)
bind_conf->default_ctx = ctx;
return 0;
}
int ssl_sock_load_cert(char *path, struct bind_conf *bind_conf, struct proxy *curproxy, char **err)
{
struct dirent *de;
DIR *dir;
struct stat buf;
char *end;
char fp[MAXPATHLEN+1];
int cfgerr = 0;
if (!(dir = opendir(path)))
return ssl_sock_load_cert_file(path, bind_conf, curproxy, NULL, 0, err);
/* strip trailing slashes, including first one */
for (end = path + strlen(path) - 1; end >= path && *end == '/'; end--)
*end = 0;
while ((de = readdir(dir))) {
end = strrchr(de->d_name, '.');
if (end && (!strcmp(end, ".issuer") || !strcmp(end, ".ocsp")))
continue;
snprintf(fp, sizeof(fp), "%s/%s", path, de->d_name);
if (stat(fp, &buf) != 0) {
memprintf(err, "%sunable to stat SSL certificate from file '%s' : %s.\n",
err && *err ? *err : "", fp, strerror(errno));
cfgerr++;
continue;
}
if (!S_ISREG(buf.st_mode))
continue;
cfgerr += ssl_sock_load_cert_file(fp, bind_conf, curproxy, NULL, 0, err);
}
closedir(dir);
return cfgerr;
}
/* Make sure openssl opens /dev/urandom before the chroot. The work is only
* done once. Zero is returned if the operation fails. No error is returned
* if the random is said as not implemented, because we expect that openssl
* will use another method once needed.
*/
static int ssl_initialize_random()
{
unsigned char random;
static int random_initialized = 0;
if (!random_initialized && RAND_bytes(&random, 1) != 0)
random_initialized = 1;
return random_initialized;
}
int ssl_sock_load_cert_list_file(char *file, struct bind_conf *bind_conf, struct proxy *curproxy, char **err)
{
char thisline[LINESIZE];
FILE *f;
int linenum = 0;
int cfgerr = 0;
if ((f = fopen(file, "r")) == NULL) {
memprintf(err, "cannot open file '%s' : %s", file, strerror(errno));
return 1;
}
while (fgets(thisline, sizeof(thisline), f) != NULL) {
int arg;
int newarg;
char *end;
char *args[MAX_LINE_ARGS + 1];
char *line = thisline;
linenum++;
end = line + strlen(line);
if (end-line == sizeof(thisline)-1 && *(end-1) != '\n') {
/* Check if we reached the limit and the last char is not \n.
* Watch out for the last line without the terminating '\n'!
*/
memprintf(err, "line %d too long in file '%s', limit is %d characters",
linenum, file, (int)sizeof(thisline)-1);
cfgerr = 1;
break;
}
arg = 0;
newarg = 1;
while (*line) {
if (*line == '#' || *line == '\n' || *line == '\r') {
/* end of string, end of loop */
*line = 0;
break;
}
else if (isspace(*line)) {
newarg = 1;
*line = 0;
}
else if (newarg) {
if (arg == MAX_LINE_ARGS) {
memprintf(err, "too many args on line %d in file '%s'.",
linenum, file);
cfgerr = 1;
break;
}
newarg = 0;
args[arg++] = line;
}
line++;
}
if (cfgerr)
break;
/* empty line */
if (!arg)
continue;
cfgerr = ssl_sock_load_cert_file(args[0], bind_conf, curproxy, &args[1], arg-1, err);
if (cfgerr) {
memprintf(err, "error processing line %d in file '%s' : %s", linenum, file, *err);
break;
}
}
fclose(f);
return cfgerr;
}
#ifndef SSL_OP_CIPHER_SERVER_PREFERENCE /* needs OpenSSL >= 0.9.7 */
#define SSL_OP_CIPHER_SERVER_PREFERENCE 0
#endif
#ifndef SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION /* needs OpenSSL >= 0.9.7 */
#define SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION 0
#define SSL_renegotiate_pending(arg) 0
#endif
#ifndef SSL_OP_SINGLE_ECDH_USE /* needs OpenSSL >= 0.9.8 */
#define SSL_OP_SINGLE_ECDH_USE 0
#endif
#ifndef SSL_OP_NO_TICKET /* needs OpenSSL >= 0.9.8 */
#define SSL_OP_NO_TICKET 0
#endif
#ifndef SSL_OP_NO_COMPRESSION /* needs OpenSSL >= 0.9.9 */
#define SSL_OP_NO_COMPRESSION 0
#endif
#ifndef SSL_OP_NO_TLSv1_1 /* needs OpenSSL >= 1.0.1 */
#define SSL_OP_NO_TLSv1_1 0
#endif
#ifndef SSL_OP_NO_TLSv1_2 /* needs OpenSSL >= 1.0.1 */
#define SSL_OP_NO_TLSv1_2 0
#endif
#ifndef SSL_OP_SINGLE_DH_USE /* needs OpenSSL >= 0.9.6 */
#define SSL_OP_SINGLE_DH_USE 0
#endif
#ifndef SSL_OP_SINGLE_ECDH_USE /* needs OpenSSL >= 1.0.0 */
#define SSL_OP_SINGLE_ECDH_USE 0
#endif
#ifndef SSL_MODE_RELEASE_BUFFERS /* needs OpenSSL >= 1.0.0 */
#define SSL_MODE_RELEASE_BUFFERS 0
#endif
#ifndef SSL_MODE_SMALL_BUFFERS /* needs small_records.patch */
#define SSL_MODE_SMALL_BUFFERS 0
#endif
int ssl_sock_prepare_ctx(struct bind_conf *bind_conf, SSL_CTX *ctx, struct proxy *curproxy)
{
int cfgerr = 0;
int verify = SSL_VERIFY_NONE;
long ssloptions =
SSL_OP_ALL | /* all known workarounds for bugs */
SSL_OP_NO_SSLv2 |
SSL_OP_NO_COMPRESSION |
SSL_OP_SINGLE_DH_USE |
SSL_OP_SINGLE_ECDH_USE |
SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION |
SSL_OP_CIPHER_SERVER_PREFERENCE;
long sslmode =
SSL_MODE_ENABLE_PARTIAL_WRITE |
SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER |
SSL_MODE_RELEASE_BUFFERS |
SSL_MODE_SMALL_BUFFERS;
STACK_OF(SSL_CIPHER) * ciphers = NULL;
SSL_CIPHER * cipher = NULL;
char cipher_description[128];
/* The description of ciphers using an Ephemeral Diffie Hellman key exchange
contains " Kx=DH " or " Kx=DH(". Beware of " Kx=DH/",
which is not ephemeral DH. */
const char dhe_description[] = " Kx=DH ";
const char dhe_export_description[] = " Kx=DH(";
int idx = 0;
int dhe_found = 0;
SSL *ssl = NULL;
/* Make sure openssl opens /dev/urandom before the chroot */
if (!ssl_initialize_random()) {
Alert("OpenSSL random data generator initialization failed.\n");
cfgerr++;
}
if (bind_conf->ssl_options & BC_SSL_O_NO_SSLV3)
ssloptions |= SSL_OP_NO_SSLv3;
if (bind_conf->ssl_options & BC_SSL_O_NO_TLSV10)
ssloptions |= SSL_OP_NO_TLSv1;
if (bind_conf->ssl_options & BC_SSL_O_NO_TLSV11)
ssloptions |= SSL_OP_NO_TLSv1_1;
if (bind_conf->ssl_options & BC_SSL_O_NO_TLSV12)
ssloptions |= SSL_OP_NO_TLSv1_2;
if (bind_conf->ssl_options & BC_SSL_O_NO_TLS_TICKETS)
ssloptions |= SSL_OP_NO_TICKET;
if (bind_conf->ssl_options & BC_SSL_O_USE_SSLV3)
SSL_CTX_set_ssl_version(ctx, SSLv3_server_method());
if (bind_conf->ssl_options & BC_SSL_O_USE_TLSV10)
SSL_CTX_set_ssl_version(ctx, TLSv1_server_method());
#if SSL_OP_NO_TLSv1_1
if (bind_conf->ssl_options & BC_SSL_O_USE_TLSV11)
SSL_CTX_set_ssl_version(ctx, TLSv1_1_server_method());
#endif
#if SSL_OP_NO_TLSv1_2
if (bind_conf->ssl_options & BC_SSL_O_USE_TLSV12)
SSL_CTX_set_ssl_version(ctx, TLSv1_2_server_method());
#endif
SSL_CTX_set_options(ctx, ssloptions);
SSL_CTX_set_mode(ctx, sslmode);
switch (bind_conf->verify) {
case SSL_SOCK_VERIFY_NONE:
verify = SSL_VERIFY_NONE;
break;
case SSL_SOCK_VERIFY_OPTIONAL:
verify = SSL_VERIFY_PEER;
break;
case SSL_SOCK_VERIFY_REQUIRED:
verify = SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT;
break;
}
SSL_CTX_set_verify(ctx, verify, ssl_sock_bind_verifycbk);
if (verify & SSL_VERIFY_PEER) {
if (bind_conf->ca_file) {
/* load CAfile to verify */
if (!SSL_CTX_load_verify_locations(ctx, bind_conf->ca_file, NULL)) {
Alert("Proxy '%s': unable to load CA file '%s' for bind '%s' at [%s:%d].\n",
curproxy->id, bind_conf->ca_file, bind_conf->arg, bind_conf->file, bind_conf->line);
cfgerr++;
}
/* set CA names fo client cert request, function returns void */
SSL_CTX_set_client_CA_list(ctx, SSL_load_client_CA_file(bind_conf->ca_file));
}
else {
Alert("Proxy '%s': verify is enabled but no CA file specified for bind '%s' at [%s:%d].\n",
curproxy->id, bind_conf->arg, bind_conf->file, bind_conf->line);
cfgerr++;
}
#ifdef X509_V_FLAG_CRL_CHECK
if (bind_conf->crl_file) {
X509_STORE *store = SSL_CTX_get_cert_store(ctx);
if (!store || !X509_STORE_load_locations(store, bind_conf->crl_file, NULL)) {
Alert("Proxy '%s': unable to configure CRL file '%s' for bind '%s' at [%s:%d].\n",
curproxy->id, bind_conf->ca_file, bind_conf->arg, bind_conf->file, bind_conf->line);
cfgerr++;
}
else {
X509_STORE_set_flags(store, X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL);
}
}
#endif
ERR_clear_error();
}
if (global.tune.ssllifetime)
SSL_CTX_set_timeout(ctx, global.tune.ssllifetime);
shared_context_set_cache(ctx);
if (bind_conf->ciphers &&
!SSL_CTX_set_cipher_list(ctx, bind_conf->ciphers)) {
Alert("Proxy '%s': unable to set SSL cipher list to '%s' for bind '%s' at [%s:%d].\n",
curproxy->id, bind_conf->ciphers, bind_conf->arg, bind_conf->file, bind_conf->line);
cfgerr++;
}
/* If tune.ssl.default-dh-param has not been set and
no static DH params were in the certificate file. */
if (global.tune.ssl_default_dh_param == 0) {
ssl = SSL_new(ctx);
if (ssl) {
ciphers = SSL_get_ciphers(ssl);
if (ciphers) {
for (idx = 0; idx < sk_SSL_CIPHER_num(ciphers); idx++) {
cipher = sk_SSL_CIPHER_value(ciphers, idx);
if (SSL_CIPHER_description(cipher, cipher_description, sizeof (cipher_description)) == cipher_description) {
if (strstr(cipher_description, dhe_description) != NULL ||
strstr(cipher_description, dhe_export_description) != NULL) {
dhe_found = 1;
break;
}
}
}
}
SSL_free(ssl);
ssl = NULL;
}
if (dhe_found) {
Warning("Setting tune.ssl.default-dh-param to 1024 by default, if your workload permits it you should set it to at least 2048. Please set a value >= 1024 to make this warning disappear.\n");
}
global.tune.ssl_default_dh_param = 1024;
}
#ifndef OPENSSL_NO_DH
if (global.tune.ssl_default_dh_param >= 1024) {
if (local_dh_1024 == NULL) {
local_dh_1024 = ssl_get_dh_1024();
}
if (global.tune.ssl_default_dh_param >= 2048) {
if (local_dh_2048 == NULL) {
local_dh_2048 = ssl_get_dh_2048();
}
if (global.tune.ssl_default_dh_param >= 4096) {
if (local_dh_4096 == NULL) {
local_dh_4096 = ssl_get_dh_4096();
}
if (global.tune.ssl_default_dh_param >= 8192 &&
local_dh_8192 == NULL) {
local_dh_8192 = ssl_get_dh_8192();
}
}
}
}
#endif /* OPENSSL_NO_DH */
SSL_CTX_set_info_callback(ctx, ssl_sock_infocbk);
#if OPENSSL_VERSION_NUMBER >= 0x00907000L
SSL_CTX_set_msg_callback(ctx, ssl_sock_msgcbk);
#endif
#ifdef OPENSSL_NPN_NEGOTIATED
if (bind_conf->npn_str)
SSL_CTX_set_next_protos_advertised_cb(ctx, ssl_sock_advertise_npn_protos, bind_conf);
#endif
#ifdef TLSEXT_TYPE_application_layer_protocol_negotiation
if (bind_conf->alpn_str)
SSL_CTX_set_alpn_select_cb(ctx, ssl_sock_advertise_alpn_protos, bind_conf);
#endif
#ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
SSL_CTX_set_tlsext_servername_callback(ctx, ssl_sock_switchctx_cbk);
SSL_CTX_set_tlsext_servername_arg(ctx, bind_conf);
#endif
#if defined(SSL_CTX_set_tmp_ecdh) && !defined(OPENSSL_NO_ECDH)
{
int i;
EC_KEY *ecdh;
i = OBJ_sn2nid(bind_conf->ecdhe ? bind_conf->ecdhe : ECDHE_DEFAULT_CURVE);
if (!i || ((ecdh = EC_KEY_new_by_curve_name(i)) == NULL)) {
Alert("Proxy '%s': unable to set elliptic named curve to '%s' for bind '%s' at [%s:%d].\n",
curproxy->id, bind_conf->ecdhe ? bind_conf->ecdhe : ECDHE_DEFAULT_CURVE,
bind_conf->arg, bind_conf->file, bind_conf->line);
cfgerr++;
}
else {
SSL_CTX_set_tmp_ecdh(ctx, ecdh);
EC_KEY_free(ecdh);
}
}
#endif
return cfgerr;
}
static int ssl_sock_srv_hostcheck(const char *pattern, const char *hostname)
{
const char *pattern_wildcard, *pattern_left_label_end, *hostname_left_label_end;
size_t prefixlen, suffixlen;
/* Trivial case */
if (strcmp(pattern, hostname) == 0)
return 1;
/* The rest of this logic is based on RFC 6125, section 6.4.3
* (http://tools.ietf.org/html/rfc6125#section-6.4.3) */
pattern_wildcard = NULL;
pattern_left_label_end = pattern;
while (*pattern_left_label_end != '.') {
switch (*pattern_left_label_end) {
case 0:
/* End of label not found */
return 0;
case '*':
/* If there is more than one wildcards */
if (pattern_wildcard)
return 0;
pattern_wildcard = pattern_left_label_end;
break;
}
pattern_left_label_end++;
}
/* If it's not trivial and there is no wildcard, it can't
* match */
if (!pattern_wildcard)
return 0;
/* Make sure all labels match except the leftmost */
hostname_left_label_end = strchr(hostname, '.');
if (!hostname_left_label_end
|| strcmp(pattern_left_label_end, hostname_left_label_end) != 0)
return 0;
/* Make sure the leftmost label of the hostname is long enough
* that the wildcard can match */
if (hostname_left_label_end - hostname < (pattern_left_label_end - pattern) - 1)
return 0;
/* Finally compare the string on either side of the
* wildcard */
prefixlen = pattern_wildcard - pattern;
suffixlen = pattern_left_label_end - (pattern_wildcard + 1);
if ((prefixlen && (memcmp(pattern, hostname, prefixlen) != 0))
|| (suffixlen && (memcmp(pattern_wildcard + 1, hostname_left_label_end - suffixlen, suffixlen) != 0)))
return 0;
return 1;
}
static int ssl_sock_srv_verifycbk(int ok, X509_STORE_CTX *ctx)
{
SSL *ssl;
struct connection *conn;
char *servername;
int depth;
X509 *cert;
STACK_OF(GENERAL_NAME) *alt_names;
int i;
X509_NAME *cert_subject;
char *str;
if (ok == 0)
return ok;
ssl = X509_STORE_CTX_get_ex_data(ctx, SSL_get_ex_data_X509_STORE_CTX_idx());
conn = (struct connection *)SSL_get_app_data(ssl);
servername = objt_server(conn->target)->ssl_ctx.verify_host;
/* We only need to verify the CN on the actual server cert,
* not the indirect CAs */
depth = X509_STORE_CTX_get_error_depth(ctx);
if (depth != 0)
return ok;
/* At this point, the cert is *not* OK unless we can find a
* hostname match */
ok = 0;
cert = X509_STORE_CTX_get_current_cert(ctx);
/* It seems like this might happen if verify peer isn't set */
if (!cert)
return ok;
alt_names = X509_get_ext_d2i(cert, NID_subject_alt_name, NULL, NULL);
if (alt_names) {
for (i = 0; !ok && i < sk_GENERAL_NAME_num(alt_names); i++) {
GENERAL_NAME *name = sk_GENERAL_NAME_value(alt_names, i);
if (name->type == GEN_DNS) {
#if OPENSSL_VERSION_NUMBER < 0x00907000L
if (ASN1_STRING_to_UTF8((unsigned char **)&str, name->d.ia5) >= 0) {
#else
if (ASN1_STRING_to_UTF8((unsigned char **)&str, name->d.dNSName) >= 0) {
#endif
ok = ssl_sock_srv_hostcheck(str, servername);
OPENSSL_free(str);
}
}
}
sk_GENERAL_NAME_pop_free(alt_names, GENERAL_NAME_free);
}
cert_subject = X509_get_subject_name(cert);
i = -1;
while (!ok && (i = X509_NAME_get_index_by_NID(cert_subject, NID_commonName, i)) != -1) {
X509_NAME_ENTRY *entry = X509_NAME_get_entry(cert_subject, i);
if (ASN1_STRING_to_UTF8((unsigned char **)&str, entry->value) >= 0) {
ok = ssl_sock_srv_hostcheck(str, servername);
OPENSSL_free(str);
}
}
return ok;
}
/* prepare ssl context from servers options. Returns an error count */
int ssl_sock_prepare_srv_ctx(struct server *srv, struct proxy *curproxy)
{
int cfgerr = 0;
long options =
SSL_OP_ALL | /* all known workarounds for bugs */
SSL_OP_NO_SSLv2 |
SSL_OP_NO_COMPRESSION;
long mode =
SSL_MODE_ENABLE_PARTIAL_WRITE |
SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER |
SSL_MODE_RELEASE_BUFFERS |
SSL_MODE_SMALL_BUFFERS;
int verify = SSL_VERIFY_NONE;
/* Make sure openssl opens /dev/urandom before the chroot */
if (!ssl_initialize_random()) {
Alert("OpenSSL random data generator initialization failed.\n");
cfgerr++;
}
/* Automatic memory computations need to know we use SSL there */
global.ssl_used_backend = 1;
/* Initiate SSL context for current server */
srv->ssl_ctx.reused_sess = NULL;
if (srv->use_ssl)
srv->xprt = &ssl_sock;
if (srv->check.use_ssl)
srv->check.xprt = &ssl_sock;
srv->ssl_ctx.ctx = SSL_CTX_new(SSLv23_client_method());
if (!srv->ssl_ctx.ctx) {
Alert("config : %s '%s', server '%s': unable to allocate ssl context.\n",
proxy_type_str(curproxy), curproxy->id,
srv->id);
cfgerr++;
return cfgerr;
}
if (srv->ssl_ctx.client_crt) {
if (SSL_CTX_use_PrivateKey_file(srv->ssl_ctx.ctx, srv->ssl_ctx.client_crt, SSL_FILETYPE_PEM) <= 0) {
Alert("config : %s '%s', server '%s': unable to load SSL private key from PEM file '%s'.\n",
proxy_type_str(curproxy), curproxy->id,
srv->id, srv->ssl_ctx.client_crt);
cfgerr++;
}
else if (SSL_CTX_use_certificate_chain_file(srv->ssl_ctx.ctx, srv->ssl_ctx.client_crt) <= 0) {
Alert("config : %s '%s', server '%s': unable to load ssl certificate from PEM file '%s'.\n",
proxy_type_str(curproxy), curproxy->id,
srv->id, srv->ssl_ctx.client_crt);
cfgerr++;
}
else if (SSL_CTX_check_private_key(srv->ssl_ctx.ctx) <= 0) {
Alert("config : %s '%s', server '%s': inconsistencies between private key and certificate loaded from PEM file '%s'.\n",
proxy_type_str(curproxy), curproxy->id,
srv->id, srv->ssl_ctx.client_crt);
cfgerr++;
}
}
if (srv->ssl_ctx.options & SRV_SSL_O_NO_SSLV3)
options |= SSL_OP_NO_SSLv3;
if (srv->ssl_ctx.options & SRV_SSL_O_NO_TLSV10)
options |= SSL_OP_NO_TLSv1;
if (srv->ssl_ctx.options & SRV_SSL_O_NO_TLSV11)
options |= SSL_OP_NO_TLSv1_1;
if (srv->ssl_ctx.options & SRV_SSL_O_NO_TLSV12)
options |= SSL_OP_NO_TLSv1_2;
if (srv->ssl_ctx.options & SRV_SSL_O_NO_TLS_TICKETS)
options |= SSL_OP_NO_TICKET;
if (srv->ssl_ctx.options & SRV_SSL_O_USE_SSLV3)
SSL_CTX_set_ssl_version(srv->ssl_ctx.ctx, SSLv3_client_method());
if (srv->ssl_ctx.options & SRV_SSL_O_USE_TLSV10)
SSL_CTX_set_ssl_version(srv->ssl_ctx.ctx, TLSv1_client_method());
#if SSL_OP_NO_TLSv1_1
if (srv->ssl_ctx.options & SRV_SSL_O_USE_TLSV11)
SSL_CTX_set_ssl_version(srv->ssl_ctx.ctx, TLSv1_1_client_method());
#endif
#if SSL_OP_NO_TLSv1_2
if (srv->ssl_ctx.options & SRV_SSL_O_USE_TLSV12)
SSL_CTX_set_ssl_version(srv->ssl_ctx.ctx, TLSv1_2_client_method());
#endif
SSL_CTX_set_options(srv->ssl_ctx.ctx, options);
SSL_CTX_set_mode(srv->ssl_ctx.ctx, mode);
if (global.ssl_server_verify == SSL_SERVER_VERIFY_REQUIRED)
verify = SSL_VERIFY_PEER;
switch (srv->ssl_ctx.verify) {
case SSL_SOCK_VERIFY_NONE:
verify = SSL_VERIFY_NONE;
break;
case SSL_SOCK_VERIFY_REQUIRED:
verify = SSL_VERIFY_PEER;
break;
}
SSL_CTX_set_verify(srv->ssl_ctx.ctx,
verify,
srv->ssl_ctx.verify_host ? ssl_sock_srv_verifycbk : NULL);
if (verify & SSL_VERIFY_PEER) {
if (srv->ssl_ctx.ca_file) {
/* load CAfile to verify */
if (!SSL_CTX_load_verify_locations(srv->ssl_ctx.ctx, srv->ssl_ctx.ca_file, NULL)) {
Alert("Proxy '%s', server '%s' [%s:%d] unable to load CA file '%s'.\n",
curproxy->id, srv->id,
srv->conf.file, srv->conf.line, srv->ssl_ctx.ca_file);
cfgerr++;
}
}
else {
if (global.ssl_server_verify == SSL_SERVER_VERIFY_REQUIRED)
Alert("Proxy '%s', server '%s' [%s:%d] verify is enabled by default but no CA file specified. If you're running on a LAN where you're certain to trust the server's certificate, please set an explicit 'verify none' statement on the 'server' line, or use 'ssl-server-verify none' in the global section to disable server-side verifications by default.\n",
curproxy->id, srv->id,
srv->conf.file, srv->conf.line);
else
Alert("Proxy '%s', server '%s' [%s:%d] verify is enabled but no CA file specified.\n",
curproxy->id, srv->id,
srv->conf.file, srv->conf.line);
cfgerr++;
}
#ifdef X509_V_FLAG_CRL_CHECK
if (srv->ssl_ctx.crl_file) {
X509_STORE *store = SSL_CTX_get_cert_store(srv->ssl_ctx.ctx);
if (!store || !X509_STORE_load_locations(store, srv->ssl_ctx.crl_file, NULL)) {
Alert("Proxy '%s', server '%s' [%s:%d] unable to configure CRL file '%s'.\n",
curproxy->id, srv->id,
srv->conf.file, srv->conf.line, srv->ssl_ctx.crl_file);
cfgerr++;
}
else {
X509_STORE_set_flags(store, X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL);
}
}
#endif
}
if (global.tune.ssllifetime)
SSL_CTX_set_timeout(srv->ssl_ctx.ctx, global.tune.ssllifetime);
SSL_CTX_set_session_cache_mode(srv->ssl_ctx.ctx, SSL_SESS_CACHE_OFF);
if (srv->ssl_ctx.ciphers &&
!SSL_CTX_set_cipher_list(srv->ssl_ctx.ctx, srv->ssl_ctx.ciphers)) {
Alert("Proxy '%s', server '%s' [%s:%d] : unable to set SSL cipher list to '%s'.\n",
curproxy->id, srv->id,
srv->conf.file, srv->conf.line, srv->ssl_ctx.ciphers);
cfgerr++;
}
return cfgerr;
}
/* Walks down the two trees in bind_conf and prepares all certs. The pointer may
* be NULL, in which case nothing is done. Returns the number of errors
* encountered.
*/
int ssl_sock_prepare_all_ctx(struct bind_conf *bind_conf, struct proxy *px)
{
struct ebmb_node *node;
struct sni_ctx *sni;
int err = 0;
if (!bind_conf || !bind_conf->is_ssl)
return 0;
/* Automatic memory computations need to know we use SSL there */
global.ssl_used_frontend = 1;
if (bind_conf->default_ctx)
err += ssl_sock_prepare_ctx(bind_conf, bind_conf->default_ctx, px);
node = ebmb_first(&bind_conf->sni_ctx);
while (node) {
sni = ebmb_entry(node, struct sni_ctx, name);
if (!sni->order && sni->ctx != bind_conf->default_ctx)
/* only initialize the CTX on its first occurrence and
if it is not the default_ctx */
err += ssl_sock_prepare_ctx(bind_conf, sni->ctx, px);
node = ebmb_next(node);
}
node = ebmb_first(&bind_conf->sni_w_ctx);
while (node) {
sni = ebmb_entry(node, struct sni_ctx, name);
if (!sni->order && sni->ctx != bind_conf->default_ctx)
/* only initialize the CTX on its first occurrence and
if it is not the default_ctx */
err += ssl_sock_prepare_ctx(bind_conf, sni->ctx, px);
node = ebmb_next(node);
}
return err;
}
/* Walks down the two trees in bind_conf and frees all the certs. The pointer may
* be NULL, in which case nothing is done. The default_ctx is nullified too.
*/
void ssl_sock_free_all_ctx(struct bind_conf *bind_conf)
{
struct ebmb_node *node, *back;
struct sni_ctx *sni;
if (!bind_conf || !bind_conf->is_ssl)
return;
node = ebmb_first(&bind_conf->sni_ctx);
while (node) {
sni = ebmb_entry(node, struct sni_ctx, name);
back = ebmb_next(node);
ebmb_delete(node);
if (!sni->order) /* only free the CTX on its first occurrence */
SSL_CTX_free(sni->ctx);
free(sni);
node = back;
}
node = ebmb_first(&bind_conf->sni_w_ctx);
while (node) {
sni = ebmb_entry(node, struct sni_ctx, name);
back = ebmb_next(node);
ebmb_delete(node);
if (!sni->order) /* only free the CTX on its first occurrence */
SSL_CTX_free(sni->ctx);
free(sni);
node = back;
}
bind_conf->default_ctx = NULL;
}
/*
* This function is called if SSL * context is not yet allocated. The function
* is designed to be called before any other data-layer operation and sets the
* handshake flag on the connection. It is safe to call it multiple times.
* It returns 0 on success and -1 in error case.
*/
static int ssl_sock_init(struct connection *conn)
{
/* already initialized */
if (conn->xprt_ctx)
return 0;
if (!conn_ctrl_ready(conn))
return 0;
if (global.maxsslconn && sslconns >= global.maxsslconn) {
conn->err_code = CO_ER_SSL_TOO_MANY;
return -1;
}
/* If it is in client mode initiate SSL session
in connect state otherwise accept state */
if (objt_server(conn->target)) {
int may_retry = 1;
retry_connect:
/* Alloc a new SSL session ctx */
conn->xprt_ctx = SSL_new(objt_server(conn->target)->ssl_ctx.ctx);
if (!conn->xprt_ctx) {
if (may_retry--) {
pool_gc2();
goto retry_connect;
}
conn->err_code = CO_ER_SSL_NO_MEM;
return -1;
}
/* set fd on SSL session context */
if (!SSL_set_fd(conn->xprt_ctx, conn->t.sock.fd)) {
SSL_free(conn->xprt_ctx);
conn->xprt_ctx = NULL;
if (may_retry--) {
pool_gc2();
goto retry_connect;
}
conn->err_code = CO_ER_SSL_NO_MEM;
return -1;
}
/* set connection pointer */
if (!SSL_set_app_data(conn->xprt_ctx, conn)) {
SSL_free(conn->xprt_ctx);
conn->xprt_ctx = NULL;
if (may_retry--) {
pool_gc2();
goto retry_connect;
}
conn->err_code = CO_ER_SSL_NO_MEM;
return -1;
}
SSL_set_connect_state(conn->xprt_ctx);
if (objt_server(conn->target)->ssl_ctx.reused_sess) {
if(!SSL_set_session(conn->xprt_ctx, objt_server(conn->target)->ssl_ctx.reused_sess)) {
SSL_SESSION_free(objt_server(conn->target)->ssl_ctx.reused_sess);
objt_server(conn->target)->ssl_ctx.reused_sess = NULL;
}
}
/* leave init state and start handshake */
conn->flags |= CO_FL_SSL_WAIT_HS | CO_FL_WAIT_L6_CONN;
sslconns++;
totalsslconns++;
return 0;
}
else if (objt_listener(conn->target)) {
int may_retry = 1;
retry_accept:
/* Alloc a new SSL session ctx */
conn->xprt_ctx = SSL_new(objt_listener(conn->target)->bind_conf->default_ctx);
if (!conn->xprt_ctx) {
if (may_retry--) {
pool_gc2();
goto retry_accept;
}
conn->err_code = CO_ER_SSL_NO_MEM;
return -1;
}
/* set fd on SSL session context */
if (!SSL_set_fd(conn->xprt_ctx, conn->t.sock.fd)) {
SSL_free(conn->xprt_ctx);
conn->xprt_ctx = NULL;
if (may_retry--) {
pool_gc2();
goto retry_accept;
}
conn->err_code = CO_ER_SSL_NO_MEM;
return -1;
}
/* set connection pointer */
if (!SSL_set_app_data(conn->xprt_ctx, conn)) {
SSL_free(conn->xprt_ctx);
conn->xprt_ctx = NULL;
if (may_retry--) {
pool_gc2();
goto retry_accept;
}
conn->err_code = CO_ER_SSL_NO_MEM;
return -1;
}
SSL_set_accept_state(conn->xprt_ctx);
/* leave init state and start handshake */
conn->flags |= CO_FL_SSL_WAIT_HS | CO_FL_WAIT_L6_CONN;
sslconns++;
totalsslconns++;
return 0;
}
/* don't know how to handle such a target */
conn->err_code = CO_ER_SSL_NO_TARGET;
return -1;
}
/* This is the callback which is used when an SSL handshake is pending. It
* updates the FD status if it wants some polling before being called again.
* It returns 0 if it fails in a fatal way or needs to poll to go further,
* otherwise it returns non-zero and removes itself from the connection's
* flags (the bit is provided in <flag> by the caller).
*/
int ssl_sock_handshake(struct connection *conn, unsigned int flag)
{
int ret;
if (!conn_ctrl_ready(conn))
return 0;
if (!conn->xprt_ctx)
goto out_error;
/* If we use SSL_do_handshake to process a reneg initiated by
* the remote peer, it sometimes returns SSL_ERROR_SSL.
* Usually SSL_write and SSL_read are used and process implicitly
* the reneg handshake.
* Here we use SSL_peek as a workaround for reneg.
*/
if ((conn->flags & CO_FL_CONNECTED) && SSL_renegotiate_pending(conn->xprt_ctx)) {
char c;
ret = SSL_peek(conn->xprt_ctx, &c, 1);
if (ret <= 0) {
/* handshake may have not been completed, let's find why */
ret = SSL_get_error(conn->xprt_ctx, ret);
if (ret == SSL_ERROR_WANT_WRITE) {
/* SSL handshake needs to write, L4 connection may not be ready */
__conn_sock_stop_recv(conn);
__conn_sock_want_send(conn);
fd_cant_send(conn->t.sock.fd);
return 0;
}
else if (ret == SSL_ERROR_WANT_READ) {
/* handshake may have been completed but we have
* no more data to read.
*/
if (!SSL_renegotiate_pending(conn->xprt_ctx)) {
ret = 1;
goto reneg_ok;
}
/* SSL handshake needs to read, L4 connection is ready */
if (conn->flags & CO_FL_WAIT_L4_CONN)
conn->flags &= ~CO_FL_WAIT_L4_CONN;
__conn_sock_stop_send(conn);
__conn_sock_want_recv(conn);
fd_cant_recv(conn->t.sock.fd);
return 0;
}
else if (ret == SSL_ERROR_SYSCALL) {
/* if errno is null, then connection was successfully established */
if (!errno && conn->flags & CO_FL_WAIT_L4_CONN)
conn->flags &= ~CO_FL_WAIT_L4_CONN;
if (!conn->err_code) {
if (!((SSL *)conn->xprt_ctx)->packet_length) {
if (!errno) {
if (conn->xprt_st & SSL_SOCK_RECV_HEARTBEAT)
conn->err_code = CO_ER_SSL_HANDSHAKE_HB;
else
conn->err_code = CO_ER_SSL_EMPTY;
}
else {
if (conn->xprt_st & SSL_SOCK_RECV_HEARTBEAT)
conn->err_code = CO_ER_SSL_HANDSHAKE_HB;
else
conn->err_code = CO_ER_SSL_ABORT;
}
}
else {
if (conn->xprt_st & SSL_SOCK_RECV_HEARTBEAT)
conn->err_code = CO_ER_SSL_HANDSHAKE_HB;
else
conn->err_code = CO_ER_SSL_HANDSHAKE;
}
}
goto out_error;
}
else {
/* Fail on all other handshake errors */
/* Note: OpenSSL may leave unread bytes in the socket's
* buffer, causing an RST to be emitted upon close() on
* TCP sockets. We first try to drain possibly pending
* data to avoid this as much as possible.
*/
conn_drain(conn);
if (!conn->err_code)
conn->err_code = (conn->xprt_st & SSL_SOCK_RECV_HEARTBEAT) ?
CO_ER_SSL_KILLED_HB : CO_ER_SSL_HANDSHAKE;
goto out_error;
}
}
/* read some data: consider handshake completed */
goto reneg_ok;
}
ret = SSL_do_handshake(conn->xprt_ctx);
if (ret != 1) {
/* handshake did not complete, let's find why */
ret = SSL_get_error(conn->xprt_ctx, ret);
if (ret == SSL_ERROR_WANT_WRITE) {
/* SSL handshake needs to write, L4 connection may not be ready */
__conn_sock_stop_recv(conn);
__conn_sock_want_send(conn);
fd_cant_send(conn->t.sock.fd);
return 0;
}
else if (ret == SSL_ERROR_WANT_READ) {
/* SSL handshake needs to read, L4 connection is ready */
if (conn->flags & CO_FL_WAIT_L4_CONN)
conn->flags &= ~CO_FL_WAIT_L4_CONN;
__conn_sock_stop_send(conn);
__conn_sock_want_recv(conn);
fd_cant_recv(conn->t.sock.fd);
return 0;
}
else if (ret == SSL_ERROR_SYSCALL) {
/* if errno is null, then connection was successfully established */
if (!errno && conn->flags & CO_FL_WAIT_L4_CONN)
conn->flags &= ~CO_FL_WAIT_L4_CONN;
if (!((SSL *)conn->xprt_ctx)->packet_length) {
if (!errno) {
if (conn->xprt_st & SSL_SOCK_RECV_HEARTBEAT)
conn->err_code = CO_ER_SSL_HANDSHAKE_HB;
else
conn->err_code = CO_ER_SSL_EMPTY;
}
else {
if (conn->xprt_st & SSL_SOCK_RECV_HEARTBEAT)
conn->err_code = CO_ER_SSL_HANDSHAKE_HB;
else
conn->err_code = CO_ER_SSL_ABORT;
}
}
else {
if (conn->xprt_st & SSL_SOCK_RECV_HEARTBEAT)
conn->err_code = CO_ER_SSL_HANDSHAKE_HB;
else
conn->err_code = CO_ER_SSL_HANDSHAKE;
}
goto out_error;
}
else {
/* Fail on all other handshake errors */
/* Note: OpenSSL may leave unread bytes in the socket's
* buffer, causing an RST to be emitted upon close() on
* TCP sockets. We first try to drain possibly pending
* data to avoid this as much as possible.
*/
conn_drain(conn);
if (!conn->err_code)
conn->err_code = (conn->xprt_st & SSL_SOCK_RECV_HEARTBEAT) ?
CO_ER_SSL_KILLED_HB : CO_ER_SSL_HANDSHAKE;
goto out_error;
}
}
reneg_ok:
/* Handshake succeeded */
if (!SSL_session_reused(conn->xprt_ctx)) {
if (objt_server(conn->target)) {
update_freq_ctr(&global.ssl_be_keys_per_sec, 1);
if (global.ssl_be_keys_per_sec.curr_ctr > global.ssl_be_keys_max)
global.ssl_be_keys_max = global.ssl_be_keys_per_sec.curr_ctr;
/* check if session was reused, if not store current session on server for reuse */
if (objt_server(conn->target)->ssl_ctx.reused_sess)
SSL_SESSION_free(objt_server(conn->target)->ssl_ctx.reused_sess);
objt_server(conn->target)->ssl_ctx.reused_sess = SSL_get1_session(conn->xprt_ctx);
}
else {
update_freq_ctr(&global.ssl_fe_keys_per_sec, 1);
if (global.ssl_fe_keys_per_sec.curr_ctr > global.ssl_fe_keys_max)
global.ssl_fe_keys_max = global.ssl_fe_keys_per_sec.curr_ctr;
}
}
/* The connection is now established at both layers, it's time to leave */
conn->flags &= ~(flag | CO_FL_WAIT_L4_CONN | CO_FL_WAIT_L6_CONN);
return 1;
out_error:
/* Clear openssl global errors stack */
ERR_clear_error();
/* free resumed session if exists */
if (objt_server(conn->target) && objt_server(conn->target)->ssl_ctx.reused_sess) {
SSL_SESSION_free(objt_server(conn->target)->ssl_ctx.reused_sess);
objt_server(conn->target)->ssl_ctx.reused_sess = NULL;
}
/* Fail on all other handshake errors */
conn->flags |= CO_FL_ERROR;
if (!conn->err_code)
conn->err_code = CO_ER_SSL_HANDSHAKE;
return 0;
}
/* Receive up to <count> bytes from connection <conn>'s socket and store them
* into buffer <buf>. Only one call to recv() is performed, unless the
* buffer wraps, in which case a second call may be performed. The connection's
* flags are updated with whatever special event is detected (error, read0,
* empty). The caller is responsible for taking care of those events and
* avoiding the call if inappropriate. The function does not call the
* connection's polling update function, so the caller is responsible for this.
*/
static int ssl_sock_to_buf(struct connection *conn, struct buffer *buf, int count)
{
int ret, done = 0;
int try;
if (!conn->xprt_ctx)
goto out_error;
if (conn->flags & CO_FL_HANDSHAKE)
/* a handshake was requested */
return 0;
/* let's realign the buffer to optimize I/O */
if (buffer_empty(buf))
buf->p = buf->data;
/* read the largest possible block. For this, we perform only one call
* to recv() unless the buffer wraps and we exactly fill the first hunk,
* in which case we accept to do it once again. A new attempt is made on
* EINTR too.
*/
while (count > 0) {
/* first check if we have some room after p+i */
try = buf->data + buf->size - (buf->p + buf->i);
/* otherwise continue between data and p-o */
if (try <= 0) {
try = buf->p - (buf->data + buf->o);
if (try <= 0)
break;
}
if (try > count)
try = count;
ret = SSL_read(conn->xprt_ctx, bi_end(buf), try);
if (conn->flags & CO_FL_ERROR) {
/* CO_FL_ERROR may be set by ssl_sock_infocbk */
goto out_error;
}
if (ret > 0) {
buf->i += ret;
done += ret;
if (ret < try)
break;
count -= ret;
}
else if (ret == 0) {
ret = SSL_get_error(conn->xprt_ctx, ret);
if (ret != SSL_ERROR_ZERO_RETURN) {
/* error on protocol or underlying transport */
if ((ret != SSL_ERROR_SYSCALL)
|| (errno && (errno != EAGAIN)))
conn->flags |= CO_FL_ERROR;
/* Clear openssl global errors stack */
ERR_clear_error();
}
goto read0;
}
else {
ret = SSL_get_error(conn->xprt_ctx, ret);
if (ret == SSL_ERROR_WANT_WRITE) {
/* handshake is running, and it needs to enable write */
conn->flags |= CO_FL_SSL_WAIT_HS;
__conn_sock_want_send(conn);
break;
}
else if (ret == SSL_ERROR_WANT_READ) {
if (SSL_renegotiate_pending(conn->xprt_ctx)) {
/* handshake is running, and it may need to re-enable read */
conn->flags |= CO_FL_SSL_WAIT_HS;
__conn_sock_want_recv(conn);
break;
}
/* we need to poll for retry a read later */
fd_cant_recv(conn->t.sock.fd);
break;
}
/* otherwise it's a real error */
goto out_error;
}
}
return done;
read0:
conn_sock_read0(conn);
return done;
out_error:
/* Clear openssl global errors stack */
ERR_clear_error();
conn->flags |= CO_FL_ERROR;
return done;
}
/* Send all pending bytes from buffer <buf> to connection <conn>'s socket.
* <flags> may contain some CO_SFL_* flags to hint the system about other
* pending data for example, but this flag is ignored at the moment.
* Only one call to send() is performed, unless the buffer wraps, in which case
* a second call may be performed. The connection's flags are updated with
* whatever special event is detected (error, empty). The caller is responsible
* for taking care of those events and avoiding the call if inappropriate. The
* function does not call the connection's polling update function, so the caller
* is responsible for this.
*/
static int ssl_sock_from_buf(struct connection *conn, struct buffer *buf, int flags)
{
int ret, try, done;
done = 0;
if (!conn->xprt_ctx)
goto out_error;
if (conn->flags & CO_FL_HANDSHAKE)
/* a handshake was requested */
return 0;
/* send the largest possible block. For this we perform only one call
* to send() unless the buffer wraps and we exactly fill the first hunk,
* in which case we accept to do it once again.
*/
while (buf->o) {
try = bo_contig_data(buf);
if (!(flags & CO_SFL_STREAMER) &&
!(conn->xprt_st & SSL_SOCK_SEND_UNLIMITED) &&
global.tune.ssl_max_record && try > global.tune.ssl_max_record) {
try = global.tune.ssl_max_record;
}
else {
/* we need to keep the information about the fact that
* we're not limiting the upcoming send(), because if it
* fails, we'll have to retry with at least as many data.
*/
conn->xprt_st |= SSL_SOCK_SEND_UNLIMITED;
}
ret = SSL_write(conn->xprt_ctx, bo_ptr(buf), try);
if (conn->flags & CO_FL_ERROR) {
/* CO_FL_ERROR may be set by ssl_sock_infocbk */
goto out_error;
}
if (ret > 0) {
conn->xprt_st &= ~SSL_SOCK_SEND_UNLIMITED;
buf->o -= ret;
done += ret;
if (likely(buffer_empty(buf)))
/* optimize data alignment in the buffer */
buf->p = buf->data;
/* if the system buffer is full, don't insist */
if (ret < try)
break;
}
else {
ret = SSL_get_error(conn->xprt_ctx, ret);
if (ret == SSL_ERROR_WANT_WRITE) {
if (SSL_renegotiate_pending(conn->xprt_ctx)) {
/* handshake is running, and it may need to re-enable write */
conn->flags |= CO_FL_SSL_WAIT_HS;
__conn_sock_want_send(conn);
break;
}
/* we need to poll to retry a write later */
fd_cant_send(conn->t.sock.fd);
break;
}
else if (ret == SSL_ERROR_WANT_READ) {
/* handshake is running, and it needs to enable read */
conn->flags |= CO_FL_SSL_WAIT_HS;
__conn_sock_want_recv(conn);
break;
}
goto out_error;
}
}
return done;
out_error:
/* Clear openssl global errors stack */
ERR_clear_error();
conn->flags |= CO_FL_ERROR;
return done;
}
static void ssl_sock_close(struct connection *conn) {
if (conn->xprt_ctx) {
SSL_free(conn->xprt_ctx);
conn->xprt_ctx = NULL;
sslconns--;
}
}
/* This function tries to perform a clean shutdown on an SSL connection, and in
* any case, flags the connection as reusable if no handshake was in progress.
*/
static void ssl_sock_shutw(struct connection *conn, int clean)
{
if (conn->flags & CO_FL_HANDSHAKE)
return;
/* no handshake was in progress, try a clean ssl shutdown */
if (clean && (SSL_shutdown(conn->xprt_ctx) <= 0)) {
/* Clear openssl global errors stack */
ERR_clear_error();
}
/* force flag on ssl to keep session in cache regardless shutdown result */
SSL_set_shutdown(conn->xprt_ctx, SSL_SENT_SHUTDOWN);
}
/* used for logging, may be changed for a sample fetch later */
const char *ssl_sock_get_cipher_name(struct connection *conn)
{
if (!conn->xprt && !conn->xprt_ctx)
return NULL;
return SSL_get_cipher_name(conn->xprt_ctx);
}
/* used for logging, may be changed for a sample fetch later */
const char *ssl_sock_get_proto_version(struct connection *conn)
{
if (!conn->xprt && !conn->xprt_ctx)
return NULL;
return SSL_get_version(conn->xprt_ctx);
}
/* Extract a serial from a cert, and copy it to a chunk.
* Returns 1 if serial is found and copied, 0 if no serial found and
* -1 if output is not large enough.
*/
static int
ssl_sock_get_serial(X509 *crt, struct chunk *out)
{
ASN1_INTEGER *serial;
serial = X509_get_serialNumber(crt);
if (!serial)
return 0;
if (out->size < serial->length)
return -1;
memcpy(out->str, serial->data, serial->length);
out->len = serial->length;
return 1;
}
/* Extract a cert to der, and copy it to a chunk.
* Returns 1 if cert is found and copied, 0 on der convertion failure and
* -1 if output is not large enough.
*/
static int
ssl_sock_crt2der(X509 *crt, struct chunk *out)
{
int len;
unsigned char *p = (unsigned char *)out->str;;
len =i2d_X509(crt, NULL);
if (len <= 0)
return 1;
if (out->size < len)
return -1;
i2d_X509(crt,&p);
out->len = len;
return 1;
}
/* Copy Date in ASN1_UTCTIME format in struct chunk out.
* Returns 1 if serial is found and copied, 0 if no valid time found
* and -1 if output is not large enough.
*/
static int
ssl_sock_get_time(ASN1_TIME *tm, struct chunk *out)
{
if (tm->type == V_ASN1_GENERALIZEDTIME) {
ASN1_GENERALIZEDTIME *gentm = (ASN1_GENERALIZEDTIME *)tm;
if (gentm->length < 12)
return 0;
if (gentm->data[0] != 0x32 || gentm->data[1] != 0x30)
return 0;
if (out->size < gentm->length-2)
return -1;
memcpy(out->str, gentm->data+2, gentm->length-2);
out->len = gentm->length-2;
return 1;
}
else if (tm->type == V_ASN1_UTCTIME) {
ASN1_UTCTIME *utctm = (ASN1_UTCTIME *)tm;
if (utctm->length < 10)
return 0;
if (utctm->data[0] >= 0x35)
return 0;
if (out->size < utctm->length)
return -1;
memcpy(out->str, utctm->data, utctm->length);
out->len = utctm->length;
return 1;
}
return 0;
}
/* Extract an entry from a X509_NAME and copy its value to an output chunk.
* Returns 1 if entry found, 0 if entry not found, or -1 if output not large enough.
*/
static int
ssl_sock_get_dn_entry(X509_NAME *a, const struct chunk *entry, int pos, struct chunk *out)
{
X509_NAME_ENTRY *ne;
int i, j, n;
int cur = 0;
const char *s;
char tmp[128];
out->len = 0;
for (i = 0; i < sk_X509_NAME_ENTRY_num(a->entries); i++) {
if (pos < 0)
j = (sk_X509_NAME_ENTRY_num(a->entries)-1) - i;
else
j = i;
ne = sk_X509_NAME_ENTRY_value(a->entries, j);
n = OBJ_obj2nid(ne->object);
if ((n == NID_undef) || ((s = OBJ_nid2sn(n)) == NULL)) {
i2t_ASN1_OBJECT(tmp, sizeof(tmp), ne->object);
s = tmp;
}
if (chunk_strcasecmp(entry, s) != 0)
continue;
if (pos < 0)
cur--;
else
cur++;
if (cur != pos)
continue;
if (ne->value->length > out->size)
return -1;
memcpy(out->str, ne->value->data, ne->value->length);
out->len = ne->value->length;
return 1;
}
return 0;
}
/* Extract and format full DN from a X509_NAME and copy result into a chunk
* Returns 1 if dn entries exits, 0 if no dn entry found or -1 if output is not large enough.
*/
static int
ssl_sock_get_dn_oneline(X509_NAME *a, struct chunk *out)
{
X509_NAME_ENTRY *ne;
int i, n, ln;
int l = 0;
const char *s;
char *p;
char tmp[128];
out->len = 0;
p = out->str;
for (i = 0; i < sk_X509_NAME_ENTRY_num(a->entries); i++) {
ne = sk_X509_NAME_ENTRY_value(a->entries, i);
n = OBJ_obj2nid(ne->object);
if ((n == NID_undef) || ((s = OBJ_nid2sn(n)) == NULL)) {
i2t_ASN1_OBJECT(tmp, sizeof(tmp), ne->object);
s = tmp;
}
ln = strlen(s);
l += 1 + ln + 1 + ne->value->length;
if (l > out->size)
return -1;
out->len = l;
*(p++)='/';
memcpy(p, s, ln);
p += ln;
*(p++)='=';
memcpy(p, ne->value->data, ne->value->length);
p += ne->value->length;
}
if (!out->len)
return 0;
return 1;
}
char *ssl_sock_get_version(struct connection *conn)
{
if (!ssl_sock_is_ssl(conn))
return NULL;
return (char *)SSL_get_version(conn->xprt_ctx);
}
/* Extract peer certificate's common name into the chunk dest
* Returns
* the len of the extracted common name
* or 0 if no CN found in DN
* or -1 on error case (i.e. no peer certificate)
*/
int ssl_sock_get_remote_common_name(struct connection *conn, struct chunk *dest)
{
X509 *crt = NULL;
X509_NAME *name;
const char find_cn[] = "CN";
const struct chunk find_cn_chunk = {
.str = (char *)&find_cn,
.len = sizeof(find_cn)-1
};
int result = -1;
if (!ssl_sock_is_ssl(conn))
goto out;
/* SSL_get_peer_certificate, it increase X509 * ref count */
crt = SSL_get_peer_certificate(conn->xprt_ctx);
if (!crt)
goto out;
name = X509_get_subject_name(crt);
if (!name)
goto out;
result = ssl_sock_get_dn_entry(name, &find_cn_chunk, 1, dest);
out:
if (crt)
X509_free(crt);
return result;
}
/* returns 1 if client passed a certificate for this session, 0 if not */
int ssl_sock_get_cert_used_sess(struct connection *conn)
{
X509 *crt = NULL;
if (!ssl_sock_is_ssl(conn))
return 0;
/* SSL_get_peer_certificate, it increase X509 * ref count */
crt = SSL_get_peer_certificate(conn->xprt_ctx);
if (!crt)
return 0;
X509_free(crt);
return 1;
}
/* returns 1 if client passed a certificate for this connection, 0 if not */
int ssl_sock_get_cert_used_conn(struct connection *conn)
{
if (!ssl_sock_is_ssl(conn))
return 0;
return SSL_SOCK_ST_FL_VERIFY_DONE & conn->xprt_st ? 1 : 0;
}
/* returns result from SSL verify */
unsigned int ssl_sock_get_verify_result(struct connection *conn)
{
if (!ssl_sock_is_ssl(conn))
return (unsigned int)X509_V_ERR_APPLICATION_VERIFICATION;
return (unsigned int)SSL_get_verify_result(conn->xprt_ctx);
}
/***** Below are some sample fetching functions for ACL/patterns *****/
/* boolean, returns true if client cert was present */
static int
smp_fetch_ssl_fc_has_crt(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
const struct arg *args, struct sample *smp, const char *kw)
{
struct connection *conn;
if (!l4)
return 0;
conn = objt_conn(l4->si[0].end);
if (!conn || conn->xprt != &ssl_sock)
return 0;
if (!(conn->flags & CO_FL_CONNECTED)) {
smp->flags |= SMP_F_MAY_CHANGE;
return 0;
}
smp->flags = 0;
smp->type = SMP_T_BOOL;
smp->data.uint = SSL_SOCK_ST_FL_VERIFY_DONE & conn->xprt_st ? 1 : 0;
return 1;
}
/* binary, returns a certificate in a binary chunk (der/raw).
* The 5th keyword char is used to know if SSL_get_certificate or SSL_get_peer_certificate
* should be use.
*/
static int
smp_fetch_ssl_x_der(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
const struct arg *args, struct sample *smp, const char *kw)
{
int cert_peer = (kw[4] == 'c') ? 1 : 0;
X509 *crt = NULL;
int ret = 0;
struct chunk *smp_trash;
struct connection *conn;
if (!l4)
return 0;
conn = objt_conn(l4->si[0].end);
if (!conn || conn->xprt != &ssl_sock)
return 0;
if (!(conn->flags & CO_FL_CONNECTED)) {
smp->flags |= SMP_F_MAY_CHANGE;
return 0;
}
if (cert_peer)
crt = SSL_get_peer_certificate(conn->xprt_ctx);
else
crt = SSL_get_certificate(conn->xprt_ctx);
if (!crt)
goto out;
smp_trash = get_trash_chunk();
if (ssl_sock_crt2der(crt, smp_trash) <= 0)
goto out;
smp->data.str = *smp_trash;
smp->type = SMP_T_BIN;
ret = 1;
out:
/* SSL_get_peer_certificate, it increase X509 * ref count */
if (cert_peer && crt)
X509_free(crt);
return ret;
}
/* binary, returns serial of certificate in a binary chunk.
* The 5th keyword char is used to know if SSL_get_certificate or SSL_get_peer_certificate
* should be use.
*/
static int
smp_fetch_ssl_x_serial(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
const struct arg *args, struct sample *smp, const char *kw)
{
int cert_peer = (kw[4] == 'c') ? 1 : 0;
X509 *crt = NULL;
int ret = 0;
struct chunk *smp_trash;
struct connection *conn;
if (!l4)
return 0;
conn = objt_conn(l4->si[0].end);
if (!conn || conn->xprt != &ssl_sock)
return 0;
if (!(conn->flags & CO_FL_CONNECTED)) {
smp->flags |= SMP_F_MAY_CHANGE;
return 0;
}
if (cert_peer)
crt = SSL_get_peer_certificate(conn->xprt_ctx);
else
crt = SSL_get_certificate(conn->xprt_ctx);
if (!crt)
goto out;
smp_trash = get_trash_chunk();
if (ssl_sock_get_serial(crt, smp_trash) <= 0)
goto out;
smp->data.str = *smp_trash;
smp->type = SMP_T_BIN;
ret = 1;
out:
/* SSL_get_peer_certificate, it increase X509 * ref count */
if (cert_peer && crt)
X509_free(crt);
return ret;
}
/* binary, returns the client certificate's SHA-1 fingerprint (SHA-1 hash of DER-encoded certificate) in a binary chunk.
* The 5th keyword char is used to know if SSL_get_certificate or SSL_get_peer_certificate
* should be use.
*/
static int
smp_fetch_ssl_x_sha1(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
const struct arg *args, struct sample *smp, const char *kw)
{
int cert_peer = (kw[4] == 'c') ? 1 : 0;
X509 *crt = NULL;
const EVP_MD *digest;
int ret = 0;
struct chunk *smp_trash;
struct connection *conn;
if (!l4)
return 0;
conn = objt_conn(l4->si[0].end);
if (!conn || conn->xprt != &ssl_sock)
return 0;
if (!(conn->flags & CO_FL_CONNECTED)) {
smp->flags |= SMP_F_MAY_CHANGE;
return 0;
}
if (cert_peer)
crt = SSL_get_peer_certificate(conn->xprt_ctx);
else
crt = SSL_get_certificate(conn->xprt_ctx);
if (!crt)
goto out;
smp_trash = get_trash_chunk();
digest = EVP_sha1();
X509_digest(crt, digest, (unsigned char *)smp_trash->str, (unsigned int *)&smp_trash->len);
smp->data.str = *smp_trash;
smp->type = SMP_T_BIN;
ret = 1;
out:
/* SSL_get_peer_certificate, it increase X509 * ref count */
if (cert_peer && crt)
X509_free(crt);
return ret;
}
/* string, returns certificate's notafter date in ASN1_UTCTIME format.
* The 5th keyword char is used to know if SSL_get_certificate or SSL_get_peer_certificate
* should be use.
*/
static int
smp_fetch_ssl_x_notafter(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
const struct arg *args, struct sample *smp, const char *kw)
{
int cert_peer = (kw[4] == 'c') ? 1 : 0;
X509 *crt = NULL;
int ret = 0;
struct chunk *smp_trash;
struct connection *conn;
if (!l4)
return 0;
conn = objt_conn(l4->si[0].end);
if (!conn || conn->xprt != &ssl_sock)
return 0;
if (!(conn->flags & CO_FL_CONNECTED)) {
smp->flags |= SMP_F_MAY_CHANGE;
return 0;
}
if (cert_peer)
crt = SSL_get_peer_certificate(conn->xprt_ctx);
else
crt = SSL_get_certificate(conn->xprt_ctx);
if (!crt)
goto out;
smp_trash = get_trash_chunk();
if (ssl_sock_get_time(X509_get_notAfter(crt), smp_trash) <= 0)
goto out;
smp->data.str = *smp_trash;
smp->type = SMP_T_STR;
ret = 1;
out:
/* SSL_get_peer_certificate, it increase X509 * ref count */
if (cert_peer && crt)
X509_free(crt);
return ret;
}
/* string, returns a string of a formatted full dn \C=..\O=..\OU=.. \CN=.. of certificate's issuer
* The 5th keyword char is used to know if SSL_get_certificate or SSL_get_peer_certificate
* should be use.
*/
static int
smp_fetch_ssl_x_i_dn(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
const struct arg *args, struct sample *smp, const char *kw)
{
int cert_peer = (kw[4] == 'c') ? 1 : 0;
X509 *crt = NULL;
X509_NAME *name;
int ret = 0;
struct chunk *smp_trash;
struct connection *conn;
if (!l4)
return 0;
conn = objt_conn(l4->si[0].end);
if (!conn || conn->xprt != &ssl_sock)
return 0;
if (!(conn->flags & CO_FL_CONNECTED)) {
smp->flags |= SMP_F_MAY_CHANGE;
return 0;
}
if (cert_peer)
crt = SSL_get_peer_certificate(conn->xprt_ctx);
else
crt = SSL_get_certificate(conn->xprt_ctx);
if (!crt)
goto out;
name = X509_get_issuer_name(crt);
if (!name)
goto out;
smp_trash = get_trash_chunk();
if (args && args[0].type == ARGT_STR) {
int pos = 1;
if (args[1].type == ARGT_SINT)
pos = args[1].data.sint;
else if (args[1].type == ARGT_UINT)
pos =(int)args[1].data.uint;
if (ssl_sock_get_dn_entry(name, &args[0].data.str, pos, smp_trash) <= 0)
goto out;
}
else if (ssl_sock_get_dn_oneline(name, smp_trash) <= 0)
goto out;
smp->type = SMP_T_STR;
smp->data.str = *smp_trash;
ret = 1;
out:
/* SSL_get_peer_certificate, it increase X509 * ref count */
if (cert_peer && crt)
X509_free(crt);
return ret;
}
/* string, returns notbefore date in ASN1_UTCTIME format.
* The 5th keyword char is used to know if SSL_get_certificate or SSL_get_peer_certificate
* should be use.
*/
static int
smp_fetch_ssl_x_notbefore(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
const struct arg *args, struct sample *smp, const char *kw)
{
int cert_peer = (kw[4] == 'c') ? 1 : 0;
X509 *crt = NULL;
int ret = 0;
struct chunk *smp_trash;
struct connection *conn;
if (!l4)
return 0;
conn = objt_conn(l4->si[0].end);
if (!conn || conn->xprt != &ssl_sock)
return 0;
if (!(conn->flags & CO_FL_CONNECTED)) {
smp->flags |= SMP_F_MAY_CHANGE;
return 0;
}
if (cert_peer)
crt = SSL_get_peer_certificate(conn->xprt_ctx);
else
crt = SSL_get_certificate(conn->xprt_ctx);
if (!crt)
goto out;
smp_trash = get_trash_chunk();
if (ssl_sock_get_time(X509_get_notBefore(crt), smp_trash) <= 0)
goto out;
smp->data.str = *smp_trash;
smp->type = SMP_T_STR;
ret = 1;
out:
/* SSL_get_peer_certificate, it increase X509 * ref count */
if (cert_peer && crt)
X509_free(crt);
return ret;
}
/* string, returns a string of a formatted full dn \C=..\O=..\OU=.. \CN=.. of certificate's subject
* The 5th keyword char is used to know if SSL_get_certificate or SSL_get_peer_certificate
* should be use.
*/
static int
smp_fetch_ssl_x_s_dn(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
const struct arg *args, struct sample *smp, const char *kw)
{
int cert_peer = (kw[4] == 'c') ? 1 : 0;
X509 *crt = NULL;
X509_NAME *name;
int ret = 0;
struct chunk *smp_trash;
struct connection *conn;
if (!l4)
return 0;
conn = objt_conn(l4->si[0].end);
if (!conn || conn->xprt != &ssl_sock)
return 0;
if (!(conn->flags & CO_FL_CONNECTED)) {
smp->flags |= SMP_F_MAY_CHANGE;
return 0;
}
if (cert_peer)
crt = SSL_get_peer_certificate(conn->xprt_ctx);
else
crt = SSL_get_certificate(conn->xprt_ctx);
if (!crt)
goto out;
name = X509_get_subject_name(crt);
if (!name)
goto out;
smp_trash = get_trash_chunk();
if (args && args[0].type == ARGT_STR) {
int pos = 1;
if (args[1].type == ARGT_SINT)
pos = args[1].data.sint;
else if (args[1].type == ARGT_UINT)
pos =(int)args[1].data.uint;
if (ssl_sock_get_dn_entry(name, &args[0].data.str, pos, smp_trash) <= 0)
goto out;
}
else if (ssl_sock_get_dn_oneline(name, smp_trash) <= 0)
goto out;
smp->type = SMP_T_STR;
smp->data.str = *smp_trash;
ret = 1;
out:
/* SSL_get_peer_certificate, it increase X509 * ref count */
if (cert_peer && crt)
X509_free(crt);
return ret;
}
/* integer, returns true if current session use a client certificate */
static int
smp_fetch_ssl_c_used(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
const struct arg *args, struct sample *smp, const char *kw)
{
X509 *crt;
struct connection *conn;
if (!l4)
return 0;
conn = objt_conn(l4->si[0].end);
if (!conn || conn->xprt != &ssl_sock)
return 0;
if (!(conn->flags & CO_FL_CONNECTED)) {
smp->flags |= SMP_F_MAY_CHANGE;
return 0;
}
/* SSL_get_peer_certificate returns a ptr on allocated X509 struct */
crt = SSL_get_peer_certificate(conn->xprt_ctx);
if (crt) {
X509_free(crt);
}
smp->type = SMP_T_BOOL;
smp->data.uint = (crt != NULL);
return 1;
}
/* integer, returns the certificate version
* The 5th keyword char is used to know if SSL_get_certificate or SSL_get_peer_certificate
* should be use.
*/
static int
smp_fetch_ssl_x_version(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
const struct arg *args, struct sample *smp, const char *kw)
{
int cert_peer = (kw[4] == 'c') ? 1 : 0;
X509 *crt;
struct connection *conn;
if (!l4)
return 0;
conn = objt_conn(l4->si[0].end);
if (!conn || conn->xprt != &ssl_sock)
return 0;
if (!(conn->flags & CO_FL_CONNECTED)) {
smp->flags |= SMP_F_MAY_CHANGE;
return 0;
}
if (cert_peer)
crt = SSL_get_peer_certificate(conn->xprt_ctx);
else
crt = SSL_get_certificate(conn->xprt_ctx);
if (!crt)
return 0;
smp->data.uint = (unsigned int)(1 + X509_get_version(crt));
/* SSL_get_peer_certificate increase X509 * ref count */
if (cert_peer)
X509_free(crt);
smp->type = SMP_T_UINT;
return 1;
}
/* string, returns the certificate's signature algorithm.
* The 5th keyword char is used to know if SSL_get_certificate or SSL_get_peer_certificate
* should be use.
*/
static int
smp_fetch_ssl_x_sig_alg(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
const struct arg *args, struct sample *smp, const char *kw)
{
int cert_peer = (kw[4] == 'c') ? 1 : 0;
X509 *crt;
int nid;
struct connection *conn;
if (!l4)
return 0;
conn = objt_conn(l4->si[0].end);
if (!conn || conn->xprt != &ssl_sock)
return 0;
if (!(conn->flags & CO_FL_CONNECTED)) {
smp->flags |= SMP_F_MAY_CHANGE;
return 0;
}
if (cert_peer)
crt = SSL_get_peer_certificate(conn->xprt_ctx);
else
crt = SSL_get_certificate(conn->xprt_ctx);
if (!crt)
return 0;
nid = OBJ_obj2nid((ASN1_OBJECT *)(crt->cert_info->signature->algorithm));
smp->data.str.str = (char *)OBJ_nid2sn(nid);
if (!smp->data.str.str) {
/* SSL_get_peer_certificate increase X509 * ref count */
if (cert_peer)
X509_free(crt);
return 0;
}
smp->type = SMP_T_STR;
smp->flags |= SMP_F_CONST;
smp->data.str.len = strlen(smp->data.str.str);
/* SSL_get_peer_certificate increase X509 * ref count */
if (cert_peer)
X509_free(crt);
return 1;
}
/* string, returns the certificate's key algorithm.
* The 5th keyword char is used to know if SSL_get_certificate or SSL_get_peer_certificate
* should be use.
*/
static int
smp_fetch_ssl_x_key_alg(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
const struct arg *args, struct sample *smp, const char *kw)
{
int cert_peer = (kw[4] == 'c') ? 1 : 0;
X509 *crt;
int nid;
struct connection *conn;
if (!l4)
return 0;
conn = objt_conn(l4->si[0].end);
if (!conn || conn->xprt != &ssl_sock)
return 0;
if (!(conn->flags & CO_FL_CONNECTED)) {
smp->flags |= SMP_F_MAY_CHANGE;
return 0;
}
if (cert_peer)
crt = SSL_get_peer_certificate(conn->xprt_ctx);
else
crt = SSL_get_certificate(conn->xprt_ctx);
if (!crt)
return 0;
nid = OBJ_obj2nid((ASN1_OBJECT *)(crt->cert_info->key->algor->algorithm));
smp->data.str.str = (char *)OBJ_nid2sn(nid);
if (!smp->data.str.str) {
/* SSL_get_peer_certificate increase X509 * ref count */
if (cert_peer)
X509_free(crt);
return 0;
}
smp->type = SMP_T_STR;
smp->flags |= SMP_F_CONST;
smp->data.str.len = strlen(smp->data.str.str);
if (cert_peer)
X509_free(crt);
return 1;
}
/* boolean, returns true if front conn. transport layer is SSL.
* This function is also usable on backend conn if the fetch keyword 5th
* char is 'b'.
*/
static int
smp_fetch_ssl_fc(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
const struct arg *args, struct sample *smp, const char *kw)
{
int back_conn = (kw[4] == 'b') ? 1 : 0;
struct connection *conn = objt_conn(l4->si[back_conn].end);
smp->type = SMP_T_BOOL;
smp->data.uint = (conn && conn->xprt == &ssl_sock);
return 1;
}
/* boolean, returns true if client present a SNI */
static int
smp_fetch_ssl_fc_has_sni(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
const struct arg *args, struct sample *smp, const char *kw)
{
#ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
struct connection *conn = objt_conn(l4->si[0].end);
smp->type = SMP_T_BOOL;
smp->data.uint = (conn && conn->xprt == &ssl_sock) &&
conn->xprt_ctx &&
SSL_get_servername(conn->xprt_ctx, TLSEXT_NAMETYPE_host_name) != NULL;
return 1;
#else
return 0;
#endif
}
/* string, returns the used cipher if front conn. transport layer is SSL.
* This function is also usable on backend conn if the fetch keyword 5th
* char is 'b'.
*/
static int
smp_fetch_ssl_fc_cipher(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
const struct arg *args, struct sample *smp, const char *kw)
{
int back_conn = (kw[4] == 'b') ? 1 : 0;
struct connection *conn;
smp->flags = 0;
if (!l4)
return 0;
conn = objt_conn(l4->si[back_conn].end);
if (!conn || !conn->xprt_ctx || conn->xprt != &ssl_sock)
return 0;
smp->data.str.str = (char *)SSL_get_cipher_name(conn->xprt_ctx);
if (!smp->data.str.str)
return 0;
smp->type = SMP_T_STR;
smp->flags |= SMP_F_CONST;
smp->data.str.len = strlen(smp->data.str.str);
return 1;
}
/* integer, returns the algoritm's keysize if front conn. transport layer
* is SSL.
* This function is also usable on backend conn if the fetch keyword 5th
* char is 'b'.
*/
static int
smp_fetch_ssl_fc_alg_keysize(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
const struct arg *args, struct sample *smp, const char *kw)
{
int back_conn = (kw[4] == 'b') ? 1 : 0;
struct connection *conn;
smp->flags = 0;
if (!l4)
return 0;
conn = objt_conn(l4->si[back_conn].end);
if (!conn || !conn->xprt_ctx || conn->xprt != &ssl_sock)
return 0;
if (!SSL_get_cipher_bits(conn->xprt_ctx, (int *)&smp->data.uint))
return 0;
smp->type = SMP_T_UINT;
return 1;
}
/* integer, returns the used keysize if front conn. transport layer is SSL.
* This function is also usable on backend conn if the fetch keyword 5th
* char is 'b'.
*/
static int
smp_fetch_ssl_fc_use_keysize(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
const struct arg *args, struct sample *smp, const char *kw)
{
int back_conn = (kw[4] == 'b') ? 1 : 0;
struct connection *conn;
smp->flags = 0;
if (!l4)
return 0;
conn = objt_conn(l4->si[back_conn].end);
if (!conn || !conn->xprt_ctx || conn->xprt != &ssl_sock)
return 0;
smp->data.uint = (unsigned int)SSL_get_cipher_bits(conn->xprt_ctx, NULL);
if (!smp->data.uint)
return 0;
smp->type = SMP_T_UINT;
return 1;
}
#ifdef OPENSSL_NPN_NEGOTIATED
static int
smp_fetch_ssl_fc_npn(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
const struct arg *args, struct sample *smp, const char *kw)
{
struct connection *conn;
smp->flags = SMP_F_CONST;
smp->type = SMP_T_STR;
if (!l4)
return 0;
conn = objt_conn(l4->si[0].end);
if (!conn || !conn->xprt_ctx || conn->xprt != &ssl_sock)
return 0;
smp->data.str.str = NULL;
SSL_get0_next_proto_negotiated(conn->xprt_ctx,
(const unsigned char **)&smp->data.str.str, (unsigned *)&smp->data.str.len);
if (!smp->data.str.str)
return 0;
return 1;
}
#endif
#ifdef TLSEXT_TYPE_application_layer_protocol_negotiation
static int
smp_fetch_ssl_fc_alpn(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
const struct arg *args, struct sample *smp, const char *kw)
{
struct connection *conn;
smp->flags = SMP_F_CONST;
smp->type = SMP_T_STR;
if (!l4)
return 0;
conn = objt_conn(l4->si[0].end);
if (!conn || !conn->xprt_ctx || conn->xprt != &ssl_sock)
return 0;
smp->data.str.str = NULL;
SSL_get0_alpn_selected(conn->xprt_ctx,
(const unsigned char **)&smp->data.str.str, (unsigned *)&smp->data.str.len);
if (!smp->data.str.str)
return 0;
return 1;
}
#endif
/* string, returns the used protocol if front conn. transport layer is SSL.
* This function is also usable on backend conn if the fetch keyword 5th
* char is 'b'.
*/
static int
smp_fetch_ssl_fc_protocol(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
const struct arg *args, struct sample *smp, const char *kw)
{
int back_conn = (kw[4] == 'b') ? 1 : 0;
struct connection *conn;
smp->flags = 0;
if (!l4)
return 0;
conn = objt_conn(l4->si[back_conn].end);
if (!conn || !conn->xprt_ctx || conn->xprt != &ssl_sock)
return 0;
smp->data.str.str = (char *)SSL_get_version(conn->xprt_ctx);
if (!smp->data.str.str)
return 0;
smp->type = SMP_T_STR;
smp->flags = SMP_F_CONST;
smp->data.str.len = strlen(smp->data.str.str);
return 1;
}
/* binary, returns the SSL session id if front conn. transport layer is SSL.
* This function is also usable on backend conn if the fetch keyword 5th
* char is 'b'.
*/
static int
smp_fetch_ssl_fc_session_id(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
const struct arg *args, struct sample *smp, const char *kw)
{
#if OPENSSL_VERSION_NUMBER > 0x0090800fL
int back_conn = (kw[4] == 'b') ? 1 : 0;
SSL_SESSION *sess;
struct connection *conn;
smp->flags = SMP_F_CONST;
smp->type = SMP_T_BIN;
if (!l4)
return 0;
conn = objt_conn(l4->si[back_conn].end);
if (!conn || !conn->xprt_ctx || conn->xprt != &ssl_sock)
return 0;
sess = SSL_get_session(conn->xprt_ctx);
if (!sess)
return 0;
smp->data.str.str = (char *)SSL_SESSION_get_id(sess, (unsigned int *)&smp->data.str.len);
if (!smp->data.str.str || !&smp->data.str.len)
return 0;
return 1;
#else
return 0;
#endif
}
static int
smp_fetch_ssl_fc_sni(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
const struct arg *args, struct sample *smp, const char *kw)
{
#ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
struct connection *conn;
smp->flags = SMP_F_CONST;
smp->type = SMP_T_STR;
if (!l4)
return 0;
conn = objt_conn(l4->si[0].end);
if (!conn || !conn->xprt_ctx || conn->xprt != &ssl_sock)
return 0;
smp->data.str.str = (char *)SSL_get_servername(conn->xprt_ctx, TLSEXT_NAMETYPE_host_name);
if (!smp->data.str.str)
return 0;
smp->data.str.len = strlen(smp->data.str.str);
return 1;
#else
return 0;
#endif
}
static int
smp_fetch_ssl_fc_unique_id(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
const struct arg *args, struct sample *smp, const char *kw)
{
#if OPENSSL_VERSION_NUMBER > 0x0090800fL
int back_conn = (kw[4] == 'b') ? 1 : 0;
struct connection *conn;
int finished_len;
struct chunk *finished_trash;
smp->flags = 0;
if (!l4)
return 0;
conn = objt_conn(l4->si[back_conn].end);
if (!conn || !conn->xprt_ctx || conn->xprt != &ssl_sock)
return 0;
if (!(conn->flags & CO_FL_CONNECTED)) {
smp->flags |= SMP_F_MAY_CHANGE;
return 0;
}
finished_trash = get_trash_chunk();
if (!SSL_session_reused(conn->xprt_ctx))
finished_len = SSL_get_peer_finished(conn->xprt_ctx, finished_trash->str, finished_trash->size);
else
finished_len = SSL_get_finished(conn->xprt_ctx, finished_trash->str, finished_trash->size);
if (!finished_len)
return 0;
finished_trash->len = finished_len;
smp->data.str = *finished_trash;
smp->type = SMP_T_BIN;
return 1;
#else
return 0;
#endif
}
/* integer, returns the first verify error in CA chain of client certificate chain. */
static int
smp_fetch_ssl_c_ca_err(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
const struct arg *args, struct sample *smp, const char *kw)
{
struct connection *conn;
if (!l4)
return 0;
conn = objt_conn(l4->si[0].end);
if (!conn || conn->xprt != &ssl_sock)
return 0;
if (!(conn->flags & CO_FL_CONNECTED)) {
smp->flags = SMP_F_MAY_CHANGE;
return 0;
}
smp->type = SMP_T_UINT;
smp->data.uint = (unsigned int)SSL_SOCK_ST_TO_CA_ERROR(conn->xprt_st);
smp->flags = 0;
return 1;
}
/* integer, returns the depth of the first verify error in CA chain of client certificate chain. */
static int
smp_fetch_ssl_c_ca_err_depth(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
const struct arg *args, struct sample *smp, const char *kw)
{
struct connection *conn;
if (!l4)
return 0;
conn = objt_conn(l4->si[0].end);
if (!conn || conn->xprt != &ssl_sock)
return 0;
if (!(conn->flags & CO_FL_CONNECTED)) {
smp->flags = SMP_F_MAY_CHANGE;
return 0;
}
smp->type = SMP_T_UINT;
smp->data.uint = (unsigned int)SSL_SOCK_ST_TO_CAEDEPTH(conn->xprt_st);
smp->flags = 0;
return 1;
}
/* integer, returns the first verify error on client certificate */
static int
smp_fetch_ssl_c_err(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
const struct arg *args, struct sample *smp, const char *kw)
{
struct connection *conn;
if (!l4)
return 0;
conn = objt_conn(l4->si[0].end);
if (!conn || conn->xprt != &ssl_sock)
return 0;
if (!(conn->flags & CO_FL_CONNECTED)) {
smp->flags = SMP_F_MAY_CHANGE;
return 0;
}
smp->type = SMP_T_UINT;
smp->data.uint = (unsigned int)SSL_SOCK_ST_TO_CRTERROR(conn->xprt_st);
smp->flags = 0;
return 1;
}
/* integer, returns the verify result on client cert */
static int
smp_fetch_ssl_c_verify(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
const struct arg *args, struct sample *smp, const char *kw)
{
struct connection *conn;
if (!l4)
return 0;
conn = objt_conn(l4->si[0].end);
if (!conn || conn->xprt != &ssl_sock)
return 0;
if (!(conn->flags & CO_FL_CONNECTED)) {
smp->flags = SMP_F_MAY_CHANGE;
return 0;
}
if (!conn->xprt_ctx)
return 0;
smp->type = SMP_T_UINT;
smp->data.uint = (unsigned int)SSL_get_verify_result(conn->xprt_ctx);
smp->flags = 0;
return 1;
}
/* parse the "ca-file" bind keyword */
static int bind_parse_ca_file(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err)
{
if (!*args[cur_arg + 1]) {
if (err)
memprintf(err, "'%s' : missing CAfile path", args[cur_arg]);
return ERR_ALERT | ERR_FATAL;
}
if ((*args[cur_arg + 1] != '/') && global.ca_base)
memprintf(&conf->ca_file, "%s/%s", global.ca_base, args[cur_arg + 1]);
else
memprintf(&conf->ca_file, "%s", args[cur_arg + 1]);
return 0;
}
/* parse the "ciphers" bind keyword */
static int bind_parse_ciphers(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err)
{
if (!*args[cur_arg + 1]) {
memprintf(err, "'%s' : missing cipher suite", args[cur_arg]);
return ERR_ALERT | ERR_FATAL;
}
free(conf->ciphers);
conf->ciphers = strdup(args[cur_arg + 1]);
return 0;
}
/* parse the "crt" bind keyword */
static int bind_parse_crt(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err)
{
char path[MAXPATHLEN];
if (!*args[cur_arg + 1]) {
memprintf(err, "'%s' : missing certificate location", args[cur_arg]);
return ERR_ALERT | ERR_FATAL;
}
if ((*args[cur_arg + 1] != '/' ) && global.crt_base) {
if ((strlen(global.crt_base) + 1 + strlen(args[cur_arg + 1]) + 1) > MAXPATHLEN) {
memprintf(err, "'%s' : path too long", args[cur_arg]);
return ERR_ALERT | ERR_FATAL;
}
snprintf(path, sizeof(path), "%s/%s", global.crt_base, args[cur_arg + 1]);
if (ssl_sock_load_cert(path, conf, px, err) > 0)
return ERR_ALERT | ERR_FATAL;
return 0;
}
if (ssl_sock_load_cert(args[cur_arg + 1], conf, px, err) > 0)
return ERR_ALERT | ERR_FATAL;
return 0;
}
/* parse the "crt-list" bind keyword */
static int bind_parse_crt_list(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err)
{
if (!*args[cur_arg + 1]) {
memprintf(err, "'%s' : missing certificate location", args[cur_arg]);
return ERR_ALERT | ERR_FATAL;
}
if (ssl_sock_load_cert_list_file(args[cur_arg + 1], conf, px, err) > 0) {
memprintf(err, "'%s' : %s", args[cur_arg], *err);
return ERR_ALERT | ERR_FATAL;
}
return 0;
}
/* parse the "crl-file" bind keyword */
static int bind_parse_crl_file(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err)
{
#ifndef X509_V_FLAG_CRL_CHECK
if (err)
memprintf(err, "'%s' : library does not support CRL verify", args[cur_arg]);
return ERR_ALERT | ERR_FATAL;
#else
if (!*args[cur_arg + 1]) {
if (err)
memprintf(err, "'%s' : missing CRLfile path", args[cur_arg]);
return ERR_ALERT | ERR_FATAL;
}
if ((*args[cur_arg + 1] != '/') && global.ca_base)
memprintf(&conf->crl_file, "%s/%s", global.ca_base, args[cur_arg + 1]);
else
memprintf(&conf->crl_file, "%s", args[cur_arg + 1]);
return 0;
#endif
}
/* parse the "ecdhe" bind keyword keywords */
static int bind_parse_ecdhe(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err)
{
#if OPENSSL_VERSION_NUMBER < 0x0090800fL
if (err)
memprintf(err, "'%s' : library does not support elliptic curve Diffie-Hellman (too old)", args[cur_arg]);
return ERR_ALERT | ERR_FATAL;
#elif defined(OPENSSL_NO_ECDH)
if (err)
memprintf(err, "'%s' : library does not support elliptic curve Diffie-Hellman (disabled via OPENSSL_NO_ECDH)", args[cur_arg]);
return ERR_ALERT | ERR_FATAL;
#else
if (!*args[cur_arg + 1]) {
if (err)
memprintf(err, "'%s' : missing named curve", args[cur_arg]);
return ERR_ALERT | ERR_FATAL;
}
conf->ecdhe = strdup(args[cur_arg + 1]);
return 0;
#endif
}
/* parse the "crt_ignerr" and "ca_ignerr" bind keywords */
static int bind_parse_ignore_err(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err)
{
int code;
char *p = args[cur_arg + 1];
unsigned long long *ignerr = &conf->crt_ignerr;
if (!*p) {
if (err)
memprintf(err, "'%s' : missing error IDs list", args[cur_arg]);
return ERR_ALERT | ERR_FATAL;
}
if (strcmp(args[cur_arg], "ca-ignore-err") == 0)
ignerr = &conf->ca_ignerr;
if (strcmp(p, "all") == 0) {
*ignerr = ~0ULL;
return 0;
}
while (p) {
code = atoi(p);
if ((code <= 0) || (code > 63)) {
if (err)
memprintf(err, "'%s' : ID '%d' out of range (1..63) in error IDs list '%s'",
args[cur_arg], code, args[cur_arg + 1]);
return ERR_ALERT | ERR_FATAL;
}
*ignerr |= 1ULL << code;
p = strchr(p, ',');
if (p)
p++;
}
return 0;
}
/* parse the "force-sslv3" bind keyword */
static int bind_parse_force_sslv3(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err)
{
conf->ssl_options |= BC_SSL_O_USE_SSLV3;
return 0;
}
/* parse the "force-tlsv10" bind keyword */
static int bind_parse_force_tlsv10(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err)
{
conf->ssl_options |= BC_SSL_O_USE_TLSV10;
return 0;
}
/* parse the "force-tlsv11" bind keyword */
static int bind_parse_force_tlsv11(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err)
{
#if SSL_OP_NO_TLSv1_1
conf->ssl_options |= BC_SSL_O_USE_TLSV11;
return 0;
#else
if (err)
memprintf(err, "'%s' : library does not support protocol TLSv1.1", args[cur_arg]);
return ERR_ALERT | ERR_FATAL;
#endif
}
/* parse the "force-tlsv12" bind keyword */
static int bind_parse_force_tlsv12(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err)
{
#if SSL_OP_NO_TLSv1_2
conf->ssl_options |= BC_SSL_O_USE_TLSV12;
return 0;
#else
if (err)
memprintf(err, "'%s' : library does not support protocol TLSv1.2", args[cur_arg]);
return ERR_ALERT | ERR_FATAL;
#endif
}
/* parse the "no-tls-tickets" bind keyword */
static int bind_parse_no_tls_tickets(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err)
{
conf->ssl_options |= BC_SSL_O_NO_TLS_TICKETS;
return 0;
}
/* parse the "no-sslv3" bind keyword */
static int bind_parse_no_sslv3(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err)
{
conf->ssl_options |= BC_SSL_O_NO_SSLV3;
return 0;
}
/* parse the "no-tlsv10" bind keyword */
static int bind_parse_no_tlsv10(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err)
{
conf->ssl_options |= BC_SSL_O_NO_TLSV10;
return 0;
}
/* parse the "no-tlsv11" bind keyword */
static int bind_parse_no_tlsv11(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err)
{
conf->ssl_options |= BC_SSL_O_NO_TLSV11;
return 0;
}
/* parse the "no-tlsv12" bind keyword */
static int bind_parse_no_tlsv12(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err)
{
conf->ssl_options |= BC_SSL_O_NO_TLSV12;
return 0;
}
/* parse the "npn" bind keyword */
static int bind_parse_npn(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err)
{
#ifdef OPENSSL_NPN_NEGOTIATED
char *p1, *p2;
if (!*args[cur_arg + 1]) {
memprintf(err, "'%s' : missing the comma-delimited NPN protocol suite", args[cur_arg]);
return ERR_ALERT | ERR_FATAL;
}
free(conf->npn_str);
/* the NPN string is built as a suite of (<len> <name>)* */
conf->npn_len = strlen(args[cur_arg + 1]) + 1;
conf->npn_str = calloc(1, conf->npn_len);
memcpy(conf->npn_str + 1, args[cur_arg + 1], conf->npn_len);
/* replace commas with the name length */
p1 = conf->npn_str;
p2 = p1 + 1;
while (1) {
p2 = memchr(p1 + 1, ',', conf->npn_str + conf->npn_len - (p1 + 1));
if (!p2)
p2 = p1 + 1 + strlen(p1 + 1);
if (p2 - (p1 + 1) > 255) {
*p2 = '\0';
memprintf(err, "'%s' : NPN protocol name too long : '%s'", args[cur_arg], p1 + 1);
return ERR_ALERT | ERR_FATAL;
}
*p1 = p2 - (p1 + 1);
p1 = p2;
if (!*p2)
break;
*(p2++) = '\0';
}
return 0;
#else
if (err)
memprintf(err, "'%s' : library does not support TLS NPN extension", args[cur_arg]);
return ERR_ALERT | ERR_FATAL;
#endif
}
/* parse the "alpn" bind keyword */
static int bind_parse_alpn(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err)
{
#ifdef TLSEXT_TYPE_application_layer_protocol_negotiation
char *p1, *p2;
if (!*args[cur_arg + 1]) {
memprintf(err, "'%s' : missing the comma-delimited ALPN protocol suite", args[cur_arg]);
return ERR_ALERT | ERR_FATAL;
}
free(conf->alpn_str);
/* the ALPN string is built as a suite of (<len> <name>)* */
conf->alpn_len = strlen(args[cur_arg + 1]) + 1;
conf->alpn_str = calloc(1, conf->alpn_len);
memcpy(conf->alpn_str + 1, args[cur_arg + 1], conf->alpn_len);
/* replace commas with the name length */
p1 = conf->alpn_str;
p2 = p1 + 1;
while (1) {
p2 = memchr(p1 + 1, ',', conf->alpn_str + conf->alpn_len - (p1 + 1));
if (!p2)
p2 = p1 + 1 + strlen(p1 + 1);
if (p2 - (p1 + 1) > 255) {
*p2 = '\0';
memprintf(err, "'%s' : ALPN protocol name too long : '%s'", args[cur_arg], p1 + 1);
return ERR_ALERT | ERR_FATAL;
}
*p1 = p2 - (p1 + 1);
p1 = p2;
if (!*p2)
break;
*(p2++) = '\0';
}
return 0;
#else
if (err)
memprintf(err, "'%s' : library does not support TLS ALPN extension", args[cur_arg]);
return ERR_ALERT | ERR_FATAL;
#endif
}
/* parse the "ssl" bind keyword */
static int bind_parse_ssl(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err)
{
struct listener *l;
conf->is_ssl = 1;
if (global.listen_default_ciphers && !conf->ciphers)
conf->ciphers = strdup(global.listen_default_ciphers);
conf->ssl_options |= global.listen_default_ssloptions;
list_for_each_entry(l, &conf->listeners, by_bind)
l->xprt = &ssl_sock;
return 0;
}
/* parse the "strict-sni" bind keyword */
static int bind_parse_strict_sni(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err)
{
conf->strict_sni = 1;
return 0;
}
/* parse the "verify" bind keyword */
static int bind_parse_verify(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err)
{
if (!*args[cur_arg + 1]) {
if (err)
memprintf(err, "'%s' : missing verify method", args[cur_arg]);
return ERR_ALERT | ERR_FATAL;
}
if (strcmp(args[cur_arg + 1], "none") == 0)
conf->verify = SSL_SOCK_VERIFY_NONE;
else if (strcmp(args[cur_arg + 1], "optional") == 0)
conf->verify = SSL_SOCK_VERIFY_OPTIONAL;
else if (strcmp(args[cur_arg + 1], "required") == 0)
conf->verify = SSL_SOCK_VERIFY_REQUIRED;
else {
if (err)
memprintf(err, "'%s' : unknown verify method '%s', only 'none', 'optional', and 'required' are supported\n",
args[cur_arg], args[cur_arg + 1]);
return ERR_ALERT | ERR_FATAL;
}
return 0;
}
/************** "server" keywords ****************/
/* parse the "ca-file" server keyword */
static int srv_parse_ca_file(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err)
{
if (!*args[*cur_arg + 1]) {
if (err)
memprintf(err, "'%s' : missing CAfile path", args[*cur_arg]);
return ERR_ALERT | ERR_FATAL;
}
if ((*args[*cur_arg + 1] != '/') && global.ca_base)
memprintf(&newsrv->ssl_ctx.ca_file, "%s/%s", global.ca_base, args[*cur_arg + 1]);
else
memprintf(&newsrv->ssl_ctx.ca_file, "%s", args[*cur_arg + 1]);
return 0;
}
/* parse the "check-ssl" server keyword */
static int srv_parse_check_ssl(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err)
{
newsrv->check.use_ssl = 1;
if (global.connect_default_ciphers && !newsrv->ssl_ctx.ciphers)
newsrv->ssl_ctx.ciphers = strdup(global.connect_default_ciphers);
newsrv->ssl_ctx.options |= global.connect_default_ssloptions;
return 0;
}
/* parse the "ciphers" server keyword */
static int srv_parse_ciphers(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err)
{
if (!*args[*cur_arg + 1]) {
memprintf(err, "'%s' : missing cipher suite", args[*cur_arg]);
return ERR_ALERT | ERR_FATAL;
}
free(newsrv->ssl_ctx.ciphers);
newsrv->ssl_ctx.ciphers = strdup(args[*cur_arg + 1]);
return 0;
}
/* parse the "crl-file" server keyword */
static int srv_parse_crl_file(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err)
{
#ifndef X509_V_FLAG_CRL_CHECK
if (err)
memprintf(err, "'%s' : library does not support CRL verify", args[*cur_arg]);
return ERR_ALERT | ERR_FATAL;
#else
if (!*args[*cur_arg + 1]) {
if (err)
memprintf(err, "'%s' : missing CRLfile path", args[*cur_arg]);
return ERR_ALERT | ERR_FATAL;
}
if ((*args[*cur_arg + 1] != '/') && global.ca_base)
memprintf(&newsrv->ssl_ctx.crl_file, "%s/%s", global.ca_base, args[*cur_arg + 1]);
else
memprintf(&newsrv->ssl_ctx.crl_file, "%s", args[*cur_arg + 1]);
return 0;
#endif
}
/* parse the "crt" server keyword */
static int srv_parse_crt(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err)
{
if (!*args[*cur_arg + 1]) {
if (err)
memprintf(err, "'%s' : missing certificate file path", args[*cur_arg]);
return ERR_ALERT | ERR_FATAL;
}
if ((*args[*cur_arg + 1] != '/') && global.crt_base)
memprintf(&newsrv->ssl_ctx.client_crt, "%s/%s", global.ca_base, args[*cur_arg + 1]);
else
memprintf(&newsrv->ssl_ctx.client_crt, "%s", args[*cur_arg + 1]);
return 0;
}
/* parse the "force-sslv3" server keyword */
static int srv_parse_force_sslv3(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err)
{
newsrv->ssl_ctx.options |= SRV_SSL_O_USE_SSLV3;
return 0;
}
/* parse the "force-tlsv10" server keyword */
static int srv_parse_force_tlsv10(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err)
{
newsrv->ssl_ctx.options |= SRV_SSL_O_USE_TLSV10;
return 0;
}
/* parse the "force-tlsv11" server keyword */
static int srv_parse_force_tlsv11(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err)
{
#if SSL_OP_NO_TLSv1_1
newsrv->ssl_ctx.options |= SRV_SSL_O_USE_TLSV11;
return 0;
#else
if (err)
memprintf(err, "'%s' : library does not support protocol TLSv1.1", args[*cur_arg]);
return ERR_ALERT | ERR_FATAL;
#endif
}
/* parse the "force-tlsv12" server keyword */
static int srv_parse_force_tlsv12(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err)
{
#if SSL_OP_NO_TLSv1_2
newsrv->ssl_ctx.options |= SRV_SSL_O_USE_TLSV12;
return 0;
#else
if (err)
memprintf(err, "'%s' : library does not support protocol TLSv1.2", args[*cur_arg]);
return ERR_ALERT | ERR_FATAL;
#endif
}
/* parse the "no-sslv3" server keyword */
static int srv_parse_no_sslv3(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err)
{
newsrv->ssl_ctx.options |= SRV_SSL_O_NO_SSLV3;
return 0;
}
/* parse the "no-tlsv10" server keyword */
static int srv_parse_no_tlsv10(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err)
{
newsrv->ssl_ctx.options |= SRV_SSL_O_NO_TLSV10;
return 0;
}
/* parse the "no-tlsv11" server keyword */
static int srv_parse_no_tlsv11(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err)
{
newsrv->ssl_ctx.options |= SRV_SSL_O_NO_TLSV11;
return 0;
}
/* parse the "no-tlsv12" server keyword */
static int srv_parse_no_tlsv12(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err)
{
newsrv->ssl_ctx.options |= SRV_SSL_O_NO_TLSV12;
return 0;
}
/* parse the "no-tls-tickets" server keyword */
static int srv_parse_no_tls_tickets(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err)
{
newsrv->ssl_ctx.options |= SRV_SSL_O_NO_TLS_TICKETS;
return 0;
}
/* parse the "send-proxy-v2-ssl" server keyword */
static int srv_parse_send_proxy_ssl(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err)
{
newsrv->pp_opts |= SRV_PP_V2;
newsrv->pp_opts |= SRV_PP_V2_SSL;
return 0;
}
/* parse the "send-proxy-v2-ssl-cn" server keyword */
static int srv_parse_send_proxy_cn(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err)
{
newsrv->pp_opts |= SRV_PP_V2;
newsrv->pp_opts |= SRV_PP_V2_SSL;
newsrv->pp_opts |= SRV_PP_V2_SSL_CN;
return 0;
}
/* parse the "ssl" server keyword */
static int srv_parse_ssl(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err)
{
newsrv->use_ssl = 1;
if (global.connect_default_ciphers && !newsrv->ssl_ctx.ciphers)
newsrv->ssl_ctx.ciphers = strdup(global.connect_default_ciphers);
return 0;
}
/* parse the "verify" server keyword */
static int srv_parse_verify(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err)
{
if (!*args[*cur_arg + 1]) {
if (err)
memprintf(err, "'%s' : missing verify method", args[*cur_arg]);
return ERR_ALERT | ERR_FATAL;
}
if (strcmp(args[*cur_arg + 1], "none") == 0)
newsrv->ssl_ctx.verify = SSL_SOCK_VERIFY_NONE;
else if (strcmp(args[*cur_arg + 1], "required") == 0)
newsrv->ssl_ctx.verify = SSL_SOCK_VERIFY_REQUIRED;
else {
if (err)
memprintf(err, "'%s' : unknown verify method '%s', only 'none' and 'required' are supported\n",
args[*cur_arg], args[*cur_arg + 1]);
return ERR_ALERT | ERR_FATAL;
}
return 0;
}
/* parse the "verifyhost" server keyword */
static int srv_parse_verifyhost(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err)
{
if (!*args[*cur_arg + 1]) {
if (err)
memprintf(err, "'%s' : missing hostname to verify against", args[*cur_arg]);
return ERR_ALERT | ERR_FATAL;
}
newsrv->ssl_ctx.verify_host = strdup(args[*cur_arg + 1]);
return 0;
}
/* parse the "ssl-default-bind-options" keyword in global section */
static int ssl_parse_default_bind_options(char **args, int section_type, struct proxy *curpx,
struct proxy *defpx, const char *file, int line,
char **err) {
int i = 1;
if (*(args[i]) == 0) {
memprintf(err, "global statement '%s' expects an option as an argument.", args[0]);
return -1;
}
while (*(args[i])) {
if (!strcmp(args[i], "no-sslv3"))
global.listen_default_ssloptions |= BC_SSL_O_NO_SSLV3;
else if (!strcmp(args[i], "no-tlsv10"))
global.listen_default_ssloptions |= BC_SSL_O_NO_TLSV10;
else if (!strcmp(args[i], "no-tlsv11"))
global.listen_default_ssloptions |= BC_SSL_O_NO_TLSV11;
else if (!strcmp(args[i], "no-tlsv12"))
global.listen_default_ssloptions |= BC_SSL_O_NO_TLSV12;
else if (!strcmp(args[i], "force-sslv3"))
global.listen_default_ssloptions |= BC_SSL_O_USE_SSLV3;
else if (!strcmp(args[i], "force-tlsv10"))
global.listen_default_ssloptions |= BC_SSL_O_USE_TLSV10;
else if (!strcmp(args[i], "force-tlsv11")) {
#if SSL_OP_NO_TLSv1_1
global.listen_default_ssloptions |= BC_SSL_O_USE_TLSV11;
#else
memprintf(err, "'%s' '%s': library does not support protocol TLSv1.1", args[0], args[i]);
return -1;
#endif
}
else if (!strcmp(args[i], "force-tlsv12")) {
#if SSL_OP_NO_TLSv1_2
global.listen_default_ssloptions |= BC_SSL_O_USE_TLSV12;
#else
memprintf(err, "'%s' '%s': library does not support protocol TLSv1.2", args[0], args[i]);
return -1;
#endif
}
else if (!strcmp(args[i], "no-tls-tickets"))
global.listen_default_ssloptions |= BC_SSL_O_NO_TLS_TICKETS;
else {
memprintf(err, "unknown option '%s' on global statement '%s'.", args[i], args[0]);
return -1;
}
i++;
}
return 0;
}
/* parse the "ssl-default-server-options" keyword in global section */
static int ssl_parse_default_server_options(char **args, int section_type, struct proxy *curpx,
struct proxy *defpx, const char *file, int line,
char **err) {
int i = 1;
if (*(args[i]) == 0) {
memprintf(err, "global statement '%s' expects an option as an argument.", args[0]);
return -1;
}
while (*(args[i])) {
if (!strcmp(args[i], "no-sslv3"))
global.connect_default_ssloptions |= SRV_SSL_O_NO_SSLV3;
else if (!strcmp(args[i], "no-tlsv10"))
global.connect_default_ssloptions |= SRV_SSL_O_NO_TLSV10;
else if (!strcmp(args[i], "no-tlsv11"))
global.connect_default_ssloptions |= SRV_SSL_O_NO_TLSV11;
else if (!strcmp(args[i], "no-tlsv12"))
global.connect_default_ssloptions |= SRV_SSL_O_NO_TLSV12;
else if (!strcmp(args[i], "force-sslv3"))
global.connect_default_ssloptions |= SRV_SSL_O_USE_SSLV3;
else if (!strcmp(args[i], "force-tlsv10"))
global.connect_default_ssloptions |= SRV_SSL_O_USE_TLSV10;
else if (!strcmp(args[i], "force-tlsv11")) {
#if SSL_OP_NO_TLSv1_1
global.connect_default_ssloptions |= SRV_SSL_O_USE_TLSV11;
#else
memprintf(err, "'%s' '%s': library does not support protocol TLSv1.1", args[0], args[i]);
return -1;
#endif
}
else if (!strcmp(args[i], "force-tlsv12")) {
#if SSL_OP_NO_TLSv1_2
global.connect_default_ssloptions |= SRV_SSL_O_USE_TLSV12;
#else
memprintf(err, "'%s' '%s': library does not support protocol TLSv1.2", args[0], args[i]);
return -1;
#endif
}
else if (!strcmp(args[i], "no-tls-tickets"))
global.connect_default_ssloptions |= SRV_SSL_O_NO_TLS_TICKETS;
else {
memprintf(err, "unknown option '%s' on global statement '%s'.", args[i], args[0]);
return -1;
}
i++;
}
return 0;
}
/* Note: must not be declared <const> as its list will be overwritten.
* Please take care of keeping this list alphabetically sorted.
*/
static struct sample_fetch_kw_list sample_fetch_keywords = {ILH, {
{ "ssl_bc", smp_fetch_ssl_fc, 0, NULL, SMP_T_BOOL, SMP_USE_L5SRV },
{ "ssl_bc_alg_keysize", smp_fetch_ssl_fc_alg_keysize, 0, NULL, SMP_T_UINT, SMP_USE_L5SRV },
{ "ssl_bc_cipher", smp_fetch_ssl_fc_cipher, 0, NULL, SMP_T_STR, SMP_USE_L5SRV },
{ "ssl_bc_protocol", smp_fetch_ssl_fc_protocol, 0, NULL, SMP_T_STR, SMP_USE_L5SRV },
{ "ssl_bc_unique_id", smp_fetch_ssl_fc_unique_id, 0, NULL, SMP_T_BIN, SMP_USE_L5SRV },
{ "ssl_bc_use_keysize", smp_fetch_ssl_fc_use_keysize, 0, NULL, SMP_T_UINT, SMP_USE_L5SRV },
{ "ssl_bc_session_id", smp_fetch_ssl_fc_session_id, 0, NULL, SMP_T_BIN, SMP_USE_L5SRV },
{ "ssl_c_ca_err", smp_fetch_ssl_c_ca_err, 0, NULL, SMP_T_UINT, SMP_USE_L5CLI },
{ "ssl_c_ca_err_depth", smp_fetch_ssl_c_ca_err_depth, 0, NULL, SMP_T_UINT, SMP_USE_L5CLI },
{ "ssl_c_der", smp_fetch_ssl_x_der, 0, NULL, SMP_T_BIN, SMP_USE_L5CLI },
{ "ssl_c_err", smp_fetch_ssl_c_err, 0, NULL, SMP_T_UINT, SMP_USE_L5CLI },
{ "ssl_c_i_dn", smp_fetch_ssl_x_i_dn, ARG2(0,STR,SINT), NULL, SMP_T_STR, SMP_USE_L5CLI },
{ "ssl_c_key_alg", smp_fetch_ssl_x_key_alg, 0, NULL, SMP_T_STR, SMP_USE_L5CLI },
{ "ssl_c_notafter", smp_fetch_ssl_x_notafter, 0, NULL, SMP_T_STR, SMP_USE_L5CLI },
{ "ssl_c_notbefore", smp_fetch_ssl_x_notbefore, 0, NULL, SMP_T_STR, SMP_USE_L5CLI },
{ "ssl_c_sig_alg", smp_fetch_ssl_x_sig_alg, 0, NULL, SMP_T_STR, SMP_USE_L5CLI },
{ "ssl_c_s_dn", smp_fetch_ssl_x_s_dn, ARG2(0,STR,SINT), NULL, SMP_T_STR, SMP_USE_L5CLI },
{ "ssl_c_serial", smp_fetch_ssl_x_serial, 0, NULL, SMP_T_BIN, SMP_USE_L5CLI },
{ "ssl_c_sha1", smp_fetch_ssl_x_sha1, 0, NULL, SMP_T_BIN, SMP_USE_L5CLI },
{ "ssl_c_used", smp_fetch_ssl_c_used, 0, NULL, SMP_T_BOOL, SMP_USE_L5CLI },
{ "ssl_c_verify", smp_fetch_ssl_c_verify, 0, NULL, SMP_T_UINT, SMP_USE_L5CLI },
{ "ssl_c_version", smp_fetch_ssl_x_version, 0, NULL, SMP_T_UINT, SMP_USE_L5CLI },
{ "ssl_f_der", smp_fetch_ssl_x_der, 0, NULL, SMP_T_BIN, SMP_USE_L5CLI },
{ "ssl_f_i_dn", smp_fetch_ssl_x_i_dn, ARG2(0,STR,SINT), NULL, SMP_T_STR, SMP_USE_L5CLI },
{ "ssl_f_key_alg", smp_fetch_ssl_x_key_alg, 0, NULL, SMP_T_STR, SMP_USE_L5CLI },
{ "ssl_f_notafter", smp_fetch_ssl_x_notafter, 0, NULL, SMP_T_STR, SMP_USE_L5CLI },
{ "ssl_f_notbefore", smp_fetch_ssl_x_notbefore, 0, NULL, SMP_T_STR, SMP_USE_L5CLI },
{ "ssl_f_sig_alg", smp_fetch_ssl_x_sig_alg, 0, NULL, SMP_T_STR, SMP_USE_L5CLI },
{ "ssl_f_s_dn", smp_fetch_ssl_x_s_dn, ARG2(0,STR,SINT), NULL, SMP_T_STR, SMP_USE_L5CLI },
{ "ssl_f_serial", smp_fetch_ssl_x_serial, 0, NULL, SMP_T_BIN, SMP_USE_L5CLI },
{ "ssl_f_sha1", smp_fetch_ssl_x_sha1, 0, NULL, SMP_T_BIN, SMP_USE_L5CLI },
{ "ssl_f_version", smp_fetch_ssl_x_version, 0, NULL, SMP_T_UINT, SMP_USE_L5CLI },
{ "ssl_fc", smp_fetch_ssl_fc, 0, NULL, SMP_T_BOOL, SMP_USE_L5CLI },
{ "ssl_fc_alg_keysize", smp_fetch_ssl_fc_alg_keysize, 0, NULL, SMP_T_UINT, SMP_USE_L5CLI },
{ "ssl_fc_cipher", smp_fetch_ssl_fc_cipher, 0, NULL, SMP_T_STR, SMP_USE_L5CLI },
{ "ssl_fc_has_crt", smp_fetch_ssl_fc_has_crt, 0, NULL, SMP_T_BOOL, SMP_USE_L5CLI },
{ "ssl_fc_has_sni", smp_fetch_ssl_fc_has_sni, 0, NULL, SMP_T_BOOL, SMP_USE_L5CLI },
#ifdef OPENSSL_NPN_NEGOTIATED
{ "ssl_fc_npn", smp_fetch_ssl_fc_npn, 0, NULL, SMP_T_STR, SMP_USE_L5CLI },
#endif
#ifdef TLSEXT_TYPE_application_layer_protocol_negotiation
{ "ssl_fc_alpn", smp_fetch_ssl_fc_alpn, 0, NULL, SMP_T_STR, SMP_USE_L5CLI },
#endif
{ "ssl_fc_protocol", smp_fetch_ssl_fc_protocol, 0, NULL, SMP_T_STR, SMP_USE_L5CLI },
{ "ssl_fc_unique_id", smp_fetch_ssl_fc_unique_id, 0, NULL, SMP_T_BIN, SMP_USE_L5CLI },
{ "ssl_fc_use_keysize", smp_fetch_ssl_fc_use_keysize, 0, NULL, SMP_T_UINT, SMP_USE_L5CLI },
{ "ssl_fc_session_id", smp_fetch_ssl_fc_session_id, 0, NULL, SMP_T_BIN, SMP_USE_L5CLI },
{ "ssl_fc_sni", smp_fetch_ssl_fc_sni, 0, NULL, SMP_T_STR, SMP_USE_L5CLI },
{ NULL, NULL, 0, 0, 0 },
}};
/* Note: must not be declared <const> as its list will be overwritten.
* Please take care of keeping this list alphabetically sorted.
*/
static struct acl_kw_list acl_kws = {ILH, {
{ "ssl_fc_sni_end", "ssl_fc_sni", PAT_MATCH_END },
{ "ssl_fc_sni_reg", "ssl_fc_sni", PAT_MATCH_REG },
{ /* END */ },
}};
/* Note: must not be declared <const> as its list will be overwritten.
* Please take care of keeping this list alphabetically sorted, doing so helps
* all code contributors.
* Optional keywords are also declared with a NULL ->parse() function so that
* the config parser can report an appropriate error when a known keyword was
* not enabled.
*/
static struct bind_kw_list bind_kws = { "SSL", { }, {
{ "alpn", bind_parse_alpn, 1 }, /* set ALPN supported protocols */
{ "ca-file", bind_parse_ca_file, 1 }, /* set CAfile to process verify on client cert */
{ "ca-ignore-err", bind_parse_ignore_err, 1 }, /* set error IDs to ignore on verify depth > 0 */
{ "ciphers", bind_parse_ciphers, 1 }, /* set SSL cipher suite */
{ "crl-file", bind_parse_crl_file, 1 }, /* set certificat revocation list file use on client cert verify */
{ "crt", bind_parse_crt, 1 }, /* load SSL certificates from this location */
{ "crt-ignore-err", bind_parse_ignore_err, 1 }, /* set error IDs to ingore on verify depth == 0 */
{ "crt-list", bind_parse_crt_list, 1 }, /* load a list of crt from this location */
{ "ecdhe", bind_parse_ecdhe, 1 }, /* defines named curve for elliptic curve Diffie-Hellman */
{ "force-sslv3", bind_parse_force_sslv3, 0 }, /* force SSLv3 */
{ "force-tlsv10", bind_parse_force_tlsv10, 0 }, /* force TLSv10 */
{ "force-tlsv11", bind_parse_force_tlsv11, 0 }, /* force TLSv11 */
{ "force-tlsv12", bind_parse_force_tlsv12, 0 }, /* force TLSv12 */
{ "no-sslv3", bind_parse_no_sslv3, 0 }, /* disable SSLv3 */
{ "no-tlsv10", bind_parse_no_tlsv10, 0 }, /* disable TLSv10 */
{ "no-tlsv11", bind_parse_no_tlsv11, 0 }, /* disable TLSv11 */
{ "no-tlsv12", bind_parse_no_tlsv12, 0 }, /* disable TLSv12 */
{ "no-tls-tickets", bind_parse_no_tls_tickets, 0 }, /* disable session resumption tickets */
{ "ssl", bind_parse_ssl, 0 }, /* enable SSL processing */
{ "strict-sni", bind_parse_strict_sni, 0 }, /* refuse negotiation if sni doesn't match a certificate */
{ "verify", bind_parse_verify, 1 }, /* set SSL verify method */
{ "npn", bind_parse_npn, 1 }, /* set NPN supported protocols */
{ NULL, NULL, 0 },
}};
/* Note: must not be declared <const> as its list will be overwritten.
* Please take care of keeping this list alphabetically sorted, doing so helps
* all code contributors.
* Optional keywords are also declared with a NULL ->parse() function so that
* the config parser can report an appropriate error when a known keyword was
* not enabled.
*/
static struct srv_kw_list srv_kws = { "SSL", { }, {
{ "ca-file", srv_parse_ca_file, 1, 0 }, /* set CAfile to process verify server cert */
{ "check-ssl", srv_parse_check_ssl, 0, 0 }, /* enable SSL for health checks */
{ "ciphers", srv_parse_ciphers, 1, 0 }, /* select the cipher suite */
{ "crl-file", srv_parse_crl_file, 1, 0 }, /* set certificate revocation list file use on server cert verify */
{ "crt", srv_parse_crt, 1, 0 }, /* set client certificate */
{ "force-sslv3", srv_parse_force_sslv3, 0, 0 }, /* force SSLv3 */
{ "force-tlsv10", srv_parse_force_tlsv10, 0, 0 }, /* force TLSv10 */
{ "force-tlsv11", srv_parse_force_tlsv11, 0, 0 }, /* force TLSv11 */
{ "force-tlsv12", srv_parse_force_tlsv12, 0, 0 }, /* force TLSv12 */
{ "no-sslv3", srv_parse_no_sslv3, 0, 0 }, /* disable SSLv3 */
{ "no-tlsv10", srv_parse_no_tlsv10, 0, 0 }, /* disable TLSv10 */
{ "no-tlsv11", srv_parse_no_tlsv11, 0, 0 }, /* disable TLSv11 */
{ "no-tlsv12", srv_parse_no_tlsv12, 0, 0 }, /* disable TLSv12 */
{ "no-tls-tickets", srv_parse_no_tls_tickets, 0, 0 }, /* disable session resumption tickets */
{ "send-proxy-v2-ssl", srv_parse_send_proxy_ssl, 0, 0 }, /* send PROXY protocol header v2 with SSL info */
{ "send-proxy-v2-ssl-cn", srv_parse_send_proxy_cn, 0, 0 }, /* send PROXY protocol header v2 with CN */
{ "ssl", srv_parse_ssl, 0, 0 }, /* enable SSL processing */
{ "verify", srv_parse_verify, 1, 0 }, /* set SSL verify method */
{ "verifyhost", srv_parse_verifyhost, 1, 0 }, /* require that SSL cert verifies for hostname */
{ NULL, NULL, 0, 0 },
}};
static struct cfg_kw_list cfg_kws = {ILH, {
{ CFG_GLOBAL, "ssl-default-bind-options", ssl_parse_default_bind_options },
{ CFG_GLOBAL, "ssl-default-server-options", ssl_parse_default_server_options },
{ 0, NULL, NULL },
}};
/* transport-layer operations for SSL sockets */
struct xprt_ops ssl_sock = {
.snd_buf = ssl_sock_from_buf,
.rcv_buf = ssl_sock_to_buf,
.rcv_pipe = NULL,
.snd_pipe = NULL,
.shutr = NULL,
.shutw = ssl_sock_shutw,
.close = ssl_sock_close,
.init = ssl_sock_init,
};
__attribute__((constructor))
static void __ssl_sock_init(void)
{
STACK_OF(SSL_COMP)* cm;
#ifdef LISTEN_DEFAULT_CIPHERS
global.listen_default_ciphers = LISTEN_DEFAULT_CIPHERS;
#endif
#ifdef CONNECT_DEFAULT_CIPHERS
global.connect_default_ciphers = CONNECT_DEFAULT_CIPHERS;
#endif
if (global.listen_default_ciphers)
global.listen_default_ciphers = strdup(global.listen_default_ciphers);
if (global.connect_default_ciphers)
global.connect_default_ciphers = strdup(global.connect_default_ciphers);
global.listen_default_ssloptions = BC_SSL_O_NONE;
global.connect_default_ssloptions = SRV_SSL_O_NONE;
SSL_library_init();
cm = SSL_COMP_get_compression_methods();
sk_SSL_COMP_zero(cm);
sample_register_fetches(&sample_fetch_keywords);
acl_register_keywords(&acl_kws);
bind_register_keywords(&bind_kws);
srv_register_keywords(&srv_kws);
cfg_register_keywords(&cfg_kws);
global.ssl_session_max_cost = SSL_SESSION_MAX_COST;
global.ssl_handshake_max_cost = SSL_HANDSHAKE_MAX_COST;
}
/*
* Local variables:
* c-indent-level: 8
* c-basic-offset: 8
* End:
*/
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