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MINOR: ssl_ckch: Simplify I/O handler to commit changes on CA/CRL entry 

Simplify cli_io_handler_commit_cafile_crlfile() handler function by
retrieving old and new entries at the beginning. In addition the path is
also retrieved at this stage. This removes several switch statements.

Note that the ctx was already validated by the corresponding parsing
function. Thus there is no reason to test the pointers.

While it is not a bug, this patch may help to fix issue #1731.
This commit is contained in:
Christopher Faulet 2022-06-03 09:00:09 +02:00
parent 14df913400
commit ddc8e1cf8b
1 changed files with 22 additions and 39 deletions
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57
src/ssl_ckch.c
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@ -2724,24 +2724,35 @@ static int cli_io_handler_commit_cafile_crlfile(struct appctx *appctx)
struct commit_cacrlfile_ctx *ctx = appctx->svcctx; struct commit_cacrlfile_ctx *ctx = appctx->svcctx;
struct stconn *sc = appctx_sc(appctx); struct stconn *sc = appctx_sc(appctx);
int y = 0; int y = 0;
struct cafile_entry *old_cafile_entry = NULL, *new_cafile_entry = NULL; struct cafile_entry *old_cafile_entry, *new_cafile_entry;
struct ckch_inst_link *ckchi_link; struct ckch_inst_link *ckchi_link;
char *path;
if (unlikely(sc_ic(sc)->flags & (CF_WRITE_ERROR|CF_SHUTW))) if (unlikely(sc_ic(sc)->flags & (CF_WRITE_ERROR|CF_SHUTW)))
goto end; goto end;
/* The ctx was already validated by the ca-file/crl-file parsing
* function. Entries can only be NULL in CACRL_ST_SUCCESS or
* CACRL_ST_FIN states
*/
switch (ctx->cafile_type) {
case CAFILE_CERT:
old_cafile_entry = ctx->old_cafile_entry;
new_cafile_entry = ctx->new_cafile_entry;
path = cafile_transaction.path;
break;
case CAFILE_CRL:
old_cafile_entry = ctx->old_crlfile_entry;
new_cafile_entry = ctx->new_crlfile_entry;
path = crlfile_transaction.path;
break;
}
while (1) { while (1) {
switch (ctx->state) { switch (ctx->state) {
case CACRL_ST_INIT: case CACRL_ST_INIT:
/* This state just print the update message */ /* This state just print the update message */
switch (ctx->cafile_type) { chunk_printf(&trash, "Committing %s", path);
case CAFILE_CERT:
chunk_printf(&trash, "Committing %s", cafile_transaction.path);
break;
case CAFILE_CRL:
chunk_printf(&trash, "Committing %s", crlfile_transaction.path);
break;
}
if (applet_putchk(appctx, &trash) == -1) if (applet_putchk(appctx, &trash) == -1)
goto yield; goto yield;
@ -2755,16 +2766,6 @@ static int cli_io_handler_commit_cafile_crlfile(struct appctx *appctx)
* Since the SSL_CTX generation can be CPU consumer, we * Since the SSL_CTX generation can be CPU consumer, we
* yield every 10 instances. * yield every 10 instances.
*/ */
switch (ctx->cafile_type) {
case CAFILE_CERT:
old_cafile_entry = ctx->old_cafile_entry;
new_cafile_entry = ctx->new_cafile_entry;
break;
case CAFILE_CRL:
old_cafile_entry = ctx->old_crlfile_entry;
new_cafile_entry = ctx->new_crlfile_entry;
break;
}
/* get the next ckchi to regenerate */ /* get the next ckchi to regenerate */
ckchi_link = ctx->next_ckchi_link; ckchi_link = ctx->next_ckchi_link;
@ -2811,18 +2812,6 @@ static int cli_io_handler_commit_cafile_crlfile(struct appctx *appctx)
/* fallthrough */ /* fallthrough */
case CACRL_ST_INSERT: case CACRL_ST_INSERT:
/* The generation is finished, we can insert everything */ /* The generation is finished, we can insert everything */
switch (ctx->cafile_type) {
case CAFILE_CERT:
old_cafile_entry = ctx->old_cafile_entry;
new_cafile_entry = ctx->new_cafile_entry;
break;
case CAFILE_CRL:
old_cafile_entry = ctx->old_crlfile_entry;
new_cafile_entry = ctx->new_crlfile_entry;
break;
}
if (!new_cafile_entry)
continue;
/* insert the new ckch_insts in the crtlist_entry */ /* insert the new ckch_insts in the crtlist_entry */
list_for_each_entry(ckchi_link, &new_cafile_entry->ckch_inst_link, list) { list_for_each_entry(ckchi_link, &new_cafile_entry->ckch_inst_link, list) {
@ -2846,14 +2835,8 @@ static int cli_io_handler_commit_cafile_crlfile(struct appctx *appctx)
ebmb_delete(&old_cafile_entry->node); ebmb_delete(&old_cafile_entry->node);
ssl_store_delete_cafile_entry(old_cafile_entry); ssl_store_delete_cafile_entry(old_cafile_entry);
switch (ctx->cafile_type) {
case CAFILE_CERT:
ctx->old_cafile_entry = ctx->new_cafile_entry = NULL; ctx->old_cafile_entry = ctx->new_cafile_entry = NULL;
break;
case CAFILE_CRL:
ctx->old_crlfile_entry = ctx->new_crlfile_entry = NULL; ctx->old_crlfile_entry = ctx->new_crlfile_entry = NULL;
break;
}
ctx->state = CACRL_ST_SUCCESS; ctx->state = CACRL_ST_SUCCESS;
/* fallthrough */ /* fallthrough */
case CACRL_ST_SUCCESS: case CACRL_ST_SUCCESS: