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REORG: http: move the log encoding tables to log.c
There are 3 tables in proto_http which are used exclusively by logs : hdr_encode_map[], url_encode_map[] and http_encode_map[]. They indicate what characters are safe to be emitted in logs depending on the part of the message where they are placed. Let's move this to log.c, as well as its initialization. It's worth noting that the rfc5424 map was already initialized there.
This commit is contained in:
Willy Tarreau
parent
04f1e2d202
commit
e10cd48a83
58
src/log.c
58
src/log.c
@ -80,6 +80,9 @@ static const struct log_fmt log_formats[LOG_FORMATS] = {
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* exclusively to the macros.
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*/
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fd_set rfc5424_escape_map[(sizeof(fd_set) > (256/8)) ? 1 : ((256/8) / sizeof(fd_set))];
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fd_set hdr_encode_map[(sizeof(fd_set) > (256/8)) ? 1 : ((256/8) / sizeof(fd_set))];
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fd_set url_encode_map[(sizeof(fd_set) > (256/8)) ? 1 : ((256/8) / sizeof(fd_set))];
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fd_set http_encode_map[(sizeof(fd_set) > (256/8)) ? 1 : ((256/8) / sizeof(fd_set))];
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#else
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#error "Check if your OS uses bitfields for fd_sets"
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@ -1511,6 +1514,7 @@ const char sess_set_cookie[8] = "NPDIRU67"; /* No set-cookie, Set-cookie found a
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void init_log()
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{
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char *tmp;
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int i;
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/* Initialize the escape map for the RFC5424 structured-data : '"\]'
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* inside PARAM-VALUE should be escaped with '\' as prefix.
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@ -1524,6 +1528,60 @@ void init_log()
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FD_SET(*tmp, rfc5424_escape_map);
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tmp++;
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}
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/* initialize the log header encoding map : '{|}"#' should be encoded with
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* '#' as prefix, as well as non-printable characters ( <32 or >= 127 ).
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* URL encoding only requires '"', '#' to be encoded as well as non-
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* printable characters above.
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*/
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memset(hdr_encode_map, 0, sizeof(hdr_encode_map));
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memset(url_encode_map, 0, sizeof(url_encode_map));
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for (i = 0; i < 32; i++) {
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FD_SET(i, hdr_encode_map);
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FD_SET(i, url_encode_map);
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}
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for (i = 127; i < 256; i++) {
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FD_SET(i, hdr_encode_map);
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FD_SET(i, url_encode_map);
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}
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tmp = "\"#{|}";
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while (*tmp) {
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FD_SET(*tmp, hdr_encode_map);
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tmp++;
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}
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tmp = "\"#";
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while (*tmp) {
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FD_SET(*tmp, url_encode_map);
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tmp++;
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}
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/* initialize the http header encoding map. The draft httpbis define the
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* header content as:
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*
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* HTTP-message = start-line
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* *( header-field CRLF )
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* CRLF
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* [ message-body ]
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* header-field = field-name ":" OWS field-value OWS
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* field-value = *( field-content / obs-fold )
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* field-content = field-vchar [ 1*( SP / HTAB ) field-vchar ]
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* obs-fold = CRLF 1*( SP / HTAB )
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* field-vchar = VCHAR / obs-text
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* VCHAR = %x21-7E
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* obs-text = %x80-FF
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*
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* All the chars are encoded except "VCHAR", "obs-text", SP and HTAB.
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* The encoded chars are form 0x00 to 0x08, 0x0a to 0x1f and 0x7f. The
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* "obs-fold" is volontary forgotten because haproxy remove this.
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*/
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memset(http_encode_map, 0, sizeof(http_encode_map));
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for (i = 0x00; i <= 0x08; i++)
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FD_SET(i, http_encode_map);
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for (i = 0x0a; i <= 0x1f; i++)
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FD_SET(i, http_encode_map);
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FD_SET(0x7f, http_encode_map);
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}
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static int init_log_buffers_per_thread()
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@ -101,23 +101,6 @@ struct action_kw_list http_res_keywords = {
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/* this struct is used between calls to smp_fetch_hdr() or smp_fetch_cookie() */
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static THREAD_LOCAL struct hdr_ctx static_hdr_ctx;
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#define FD_SETS_ARE_BITFIELDS
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#ifdef FD_SETS_ARE_BITFIELDS
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/*
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* This map is used with all the FD_* macros to check whether a particular bit
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* is set or not. Each bit represents an ACSII code. FD_SET() sets those bytes
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* which should be encoded. When FD_ISSET() returns non-zero, it means that the
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* byte should be encoded. Be careful to always pass bytes from 0 to 255
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* exclusively to the macros.
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*/
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fd_set hdr_encode_map[(sizeof(fd_set) > (256/8)) ? 1 : ((256/8) / sizeof(fd_set))];
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fd_set url_encode_map[(sizeof(fd_set) > (256/8)) ? 1 : ((256/8) / sizeof(fd_set))];
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fd_set http_encode_map[(sizeof(fd_set) > (256/8)) ? 1 : ((256/8) / sizeof(fd_set))];
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#else
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#error "Check if your OS uses bitfields for fd_sets"
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#endif
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static int http_apply_redirect_rule(struct redirect_rule *rule, struct stream *s, struct http_txn *txn);
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static inline int http_msg_forward_body(struct stream *s, struct http_msg *msg);
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@ -125,64 +108,6 @@ static inline int http_msg_forward_chunked_body(struct stream *s, struct http_ms
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void init_proto_http()
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{
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int i;
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char *tmp;
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/* initialize the log header encoding map : '{|}"#' should be encoded with
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* '#' as prefix, as well as non-printable characters ( <32 or >= 127 ).
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* URL encoding only requires '"', '#' to be encoded as well as non-
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* printable characters above.
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*/
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memset(hdr_encode_map, 0, sizeof(hdr_encode_map));
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memset(url_encode_map, 0, sizeof(url_encode_map));
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memset(http_encode_map, 0, sizeof(url_encode_map));
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for (i = 0; i < 32; i++) {
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FD_SET(i, hdr_encode_map);
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FD_SET(i, url_encode_map);
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}
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for (i = 127; i < 256; i++) {
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FD_SET(i, hdr_encode_map);
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FD_SET(i, url_encode_map);
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}
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tmp = "\"#{|}";
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while (*tmp) {
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FD_SET(*tmp, hdr_encode_map);
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tmp++;
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}
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tmp = "\"#";
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while (*tmp) {
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FD_SET(*tmp, url_encode_map);
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tmp++;
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}
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/* initialize the http header encoding map. The draft httpbis define the
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* header content as:
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*
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* HTTP-message = start-line
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* *( header-field CRLF )
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* CRLF
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* [ message-body ]
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* header-field = field-name ":" OWS field-value OWS
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* field-value = *( field-content / obs-fold )
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* field-content = field-vchar [ 1*( SP / HTAB ) field-vchar ]
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* obs-fold = CRLF 1*( SP / HTAB )
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* field-vchar = VCHAR / obs-text
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* VCHAR = %x21-7E
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* obs-text = %x80-FF
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*
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* All the chars are encoded except "VCHAR", "obs-text", SP and HTAB.
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* The encoded chars are form 0x00 to 0x08, 0x0a to 0x1f and 0x7f. The
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* "obs-fold" is volontary forgotten because haproxy remove this.
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*/
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memset(http_encode_map, 0, sizeof(http_encode_map));
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for (i = 0x00; i <= 0x08; i++)
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FD_SET(i, http_encode_map);
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for (i = 0x0a; i <= 0x1f; i++)
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FD_SET(i, http_encode_map);
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FD_SET(0x7f, http_encode_map);
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/* memory allocations */
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pool_head_http_txn = create_pool("http_txn", sizeof(struct http_txn), MEM_F_SHARED);
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pool_head_uniqueid = create_pool("uniqueid", UNIQUEID_LEN, MEM_F_SHARED);
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