From 27a3ead8a7c17872acbbadf878f6f3d091b0bda2 Mon Sep 17 00:00:00 2001 From: Mark Michelson Date: Wed, 2 Jul 2008 20:47:38 +0000 Subject: [PATCH] Fix thread-safety of some of the pbx_builtin_getvar_helper calls git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@127560 65c4cc65-6c06-0410-ace0-fbb531ad65f3 --- channels/chan_agent.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/channels/chan_agent.c b/channels/chan_agent.c index 0f6fbfbe89..b2353f0397 100644 --- a/channels/chan_agent.c +++ b/channels/chan_agent.c @@ -1902,6 +1902,7 @@ static int __login_exec(struct ast_channel *chan, void *data, int callbackmode) ast_copy_string(agent_goodbye, agentgoodbye, sizeof(agent_goodbye)); + ast_channel_lock(chan); /* Set Channel Specific Login Overrides */ if (pbx_builtin_getvar_helper(chan, "AGENTLMAXLOGINTRIES") && strlen(pbx_builtin_getvar_helper(chan, "AGENTLMAXLOGINTRIES"))) { max_login_tries = atoi(pbx_builtin_getvar_helper(chan, "AGENTMAXLOGINTRIES")); @@ -1926,6 +1927,7 @@ static int __login_exec(struct ast_channel *chan, void *data, int callbackmode) if (option_verbose > 2) ast_verbose(VERBOSE_PREFIX_3 "Saw variable AGENTGOODBYE=%s, setting agent_goodbye to: %s on Channel '%s'.\n",tmpoptions,agent_goodbye,chan->name); } + ast_channel_unlock(chan); /* End Channel Specific Login Overrides */ if (callbackmode && args.extension) { @@ -1972,6 +1974,8 @@ static int __login_exec(struct ast_channel *chan, void *data, int callbackmode) /* Check again for accuracy */ AST_LIST_LOCK(&agents); AST_LIST_TRAVERSE(&agents, p, list) { + int unlock_channel = 1; + ast_channel_lock(chan); ast_mutex_lock(&p->lock); if (!strcmp(p->agent, user) && !strcmp(p->password, pass) && !p->pending) { @@ -2009,6 +2013,8 @@ static int __login_exec(struct ast_channel *chan, void *data, int callbackmode) if (option_verbose > 2) ast_verbose(VERBOSE_PREFIX_3 "Saw variable AGENTWRAPUPTIME=%s, setting wrapuptime to: %d for Agent '%s'.\n",tmpoptions,p->wrapuptime,p->agent); } + ast_channel_unlock(chan); + unlock_channel = 0; /* End Channel Specific Agent Overrides */ if (!p->chan) { char last_loginchan[80] = ""; @@ -2246,6 +2252,9 @@ static int __login_exec(struct ast_channel *chan, void *data, int callbackmode) break; } ast_mutex_unlock(&p->lock); + if (unlock_channel) { + ast_channel_unlock(chan); + } } if (!p) AST_LIST_UNLOCK(&agents);