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openssl:support for user_ctx data structure to toggle SSL key logging dynamically

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This commit is contained in:
AD001\z0048zxj 2024-11-06 15:24:15 +05:30
parent 626f8816cf
commit 79e55bd6b5
3 changed files with 43 additions and 4 deletions
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33
lib/core-net/close.c
View file

@ -25,6 +25,14 @@
#include "private-lib-core.h"
#include "private-lib-async-dns.h"
// structure for user info
typedef struct VhostUsrInfo {
void *usr_ctx;
} VhostUsrInfo;
// to store key log file path
char *klfl_env = NULL;
#if defined(LWS_WITH_CLIENT)
static int
lws_close_trans_q_leader(struct lws_dll2 *d, void *user)
@ -1044,6 +1052,31 @@ lws_close_free_wsi(struct lws *wsi, enum lws_close_status reason, const char *ca
struct lws_context *cx = wsi->a.context;
struct lws_context_per_thread *pt = &wsi->a.context->pt[(int)wsi->tsi];
struct lws_vhost *pVhost;
VhostUsrInfo *pUsrInfo;
pVhost = lws_get_vhost(wsi);
if(pVhost){
pUsrInfo = (VhostUsrInfo *)lws_vhost_user(pVhost);
bool fStartStopSniffig = *((bool *)pUsrInfo->usr_ctx);
/* User input boolean flag to start or stop logging SSL keys */
if(fStartStopSniffig)
{
if (klfl_env == NULL || *klfl_env == '\0'){
klfl_env = getenv("SSLKEYLOGFILE");
}
/* Fill key log file in lws_context */
if (klfl_env)
lws_strncpy(wsi->a.context->keylog_file, klfl_env,
sizeof(wsi->a.context->keylog_file));
}
else{
klfl_env = NULL;
wsi->a.context->keylog_file[0] = '\0';
}
}
lws_context_lock(cx, __func__);
lws_pt_lock(pt, __func__);

3
lib/core/private-lib-core.h
View file

@ -27,7 +27,8 @@
#include "lws_config.h"
#include "lws_config_private.h"
#include <stdbool.h>
#include <stdio.h>
#if defined(LWS_WITH_CGI) && defined(LWS_HAVE_VFORK) && \
!defined(NO_GNU_SOURCE_THIS_TIME) && !defined(_GNU_SOURCE)

11
lib/plat/windows/windows-init.c
View file

@ -107,11 +107,16 @@ lws_plat_init(struct lws_context *context,
#if defined(LWS_HAVE_SSL_CTX_set_keylog_callback) && \
defined(LWS_WITH_TLS) && defined(LWS_WITH_CLIENT)
{
/* The LWS_SSLKEYLOGFILE or SSLKEYLOGFILE are the environment variables which is used
* to specify a file where SSL/TLS keys are logged. */
char *klf_env = getenv("SSLKEYLOGFILE");
char *lws_env = getenv("LWS_SSLKEYLOGFILE");
if (klf_env)
lws_strncpy(context->keylog_file, klf_env,
sizeof(context->keylog_file));
/* SSLKEYLOGFILE will be deprecated in future so first preference to LWS_SSLKEYLOGFILE */
if (lws_env)
lws_strncpy(context->keylog_file, lws_env, sizeof(context->keylog_file));
else if(klf_env)
lws_strncpy(context->keylog_file, klf_env, sizeof(context->keylog_file));
}
#endif