Added option to write SRTP keys to log

daemon/crypto.c

@@ -14,6 +14,7 @@
 #include "log.h"
 #include "rtplib.h"
 #include "rtcplib.h"
+#include "main.h"
 
 
 
@@ -699,7 +700,7 @@ static int null_crypt_rtcp(struct crypto_context *c, struct rtcp_packet *r, str
 	return 0;
 }
 
-static void dump_key(struct crypto_context *c) {
+static void dump_key(struct crypto_context *c, int log_level) {
 	char *k, *s;
 
 	if (!c->params.crypto_suite)
@@ -708,20 +709,25 @@ static void dump_key(struct crypto_context *c) {
 	k = g_base64_encode(c->params.master_key, c->params.crypto_suite->master_key_len);
 	s = g_base64_encode(c->params.master_salt, c->params.crypto_suite->master_salt_len);
 
-	ilog(LOG_DEBUG, "--- %s key %s salt %s", c->params.crypto_suite->name, k, s);
+	ilog(log_level, "--- %s key %s salt %s", c->params.crypto_suite->name, k, s);
 
 	g_free(k);
 	g_free(s);
 }
 
 void crypto_dump_keys(struct crypto_context *in, struct crypto_context *out) {
-	if (get_log_level() < LOG_DEBUG)
+	int log_level = LOG_DEBUG;
+	
+	if (rtpe_config.log_keys)
+	    log_level = LOG_ERROR;
+	    
+	if (get_log_level() < log_level)
 		return;
 
-	ilog(LOG_DEBUG, "SRTP keys, incoming:");
-	dump_key(in);
-	ilog(LOG_DEBUG, "SRTP keys, outgoing:");
-	dump_key(out);
+	ilog(log_level, "SRTP keys, incoming:");
+	dump_key(in, log_level);
+	ilog(log_level, "SRTP keys, outgoing:");
+	dump_key(out, log_level);
 }
 
 void crypto_init_main() {

daemon/main.c

@@ -362,6 +362,7 @@ static void options(int *argc, char ***argv) {
 		{ "priority",	0, 0,	G_OPTION_ARG_INT,	&rtpe_config.priority,	"Thread scheduling priority",	"INT" },
 		{ "idle-scheduling",0, 0,G_OPTION_ARG_STRING,	&rtpe_config.idle_scheduling,"Idle thread scheduling policy",	"default|none|fifo|rr|other|batch|idle" },
 		{ "idle-priority",0, 0,	G_OPTION_ARG_INT,	&rtpe_config.idle_priority,"Idle thread scheduling priority",	"INT" },
+		{ "log-rtp-keys",'F', 0, G_OPTION_ARG_NONE,	&rtpe_config.log_keys,	"Log rtp keys", NULL },
 		{ NULL, }
 	};
 

include/main.h

@@ -76,6 +76,7 @@ struct rtpengine_config {
 	int			priority;
 	char			*idle_scheduling;
 	int			idle_priority;
+	int			log_keys;
 };