Janitor patch for chan_misdn (make channel variable access safe)
(closes issue #12887) Reported by: pputman Patches: chan_misdn_threadsafe.patch uploaded by pputman (license 81) git-svn-id: http://svn.digium.com/svn/asterisk/trunk@168591 f38db490-d61c-443f-a65b-d21fe96a405b
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@ -2516,7 +2516,8 @@ static int misdn_answer(struct ast_channel *ast)
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ast_queue_hangup_with_cause(ast, AST_CAUSE_PROTOCOL_ERROR);
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}
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tmp = pbx_builtin_getvar_helper(p->ast, "CRYPT_KEY");
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ast_channel_lock(ast);
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tmp = pbx_builtin_getvar_helper(ast, "CRYPT_KEY");
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if (!ast_strlen_zero(tmp)) {
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chan_misdn_log(1, p->bc->port, " --> Connection will be BF crypted\n");
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ast_copy_string(p->bc->crypt_key, tmp, sizeof(p->bc->crypt_key));
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@ -2531,6 +2532,7 @@ static int misdn_answer(struct ast_channel *ast)
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p->bc->hdlc = 0;
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p->bc->nojitter = 1;
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}
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ast_channel_unlock(ast);
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p->state = MISDN_CONNECTED;
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stop_indicate(p);
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@ -2751,12 +2753,14 @@ static int misdn_hangup(struct ast_channel *ast)
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bc = p->bc;
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if (bc) {
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const char *tmp=pbx_builtin_getvar_helper(ast,"MISDN_USERUSER");
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if (tmp) {
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const char *tmp;
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ast_channel_lock(ast);
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if ((tmp = pbx_builtin_getvar_helper(ast, "MISDN_USERUSER"))) {
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ast_log(LOG_NOTICE, "MISDN_USERUSER: %s\n", tmp);
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strcpy(bc->uu, tmp);
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bc->uulen=strlen(bc->uu);
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}
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ast_channel_unlock(ast);
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}
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MISDN_ASTERISK_TECH_PVT(ast) = NULL;
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@ -2801,11 +2805,13 @@ static int misdn_hangup(struct ast_channel *ast)
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bc->out_cause = ast->hangupcause ? ast->hangupcause : AST_CAUSE_NORMAL_CLEARING;
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ast_channel_lock(ast);
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if ((varcause = pbx_builtin_getvar_helper(ast, "HANGUPCAUSE")) ||
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(varcause = pbx_builtin_getvar_helper(ast, "PRI_CAUSE"))) {
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int tmpcause = atoi(varcause);
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bc->out_cause = tmpcause ? tmpcause : AST_CAUSE_NORMAL_CLEARING;
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}
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ast_channel_unlock(ast);
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chan_misdn_log(1, bc->port, "* IND : HANGUP\tpid:%d ctx:%s dad:%s oad:%s State:%s\n", p->bc ? p->bc->pid : -1, ast->context, ast->exten, ast->cid.cid_num, misdn_get_ch_state(p));
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chan_misdn_log(3, bc->port, " --> l3id:%x\n", p->l3id);
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@ -4060,6 +4066,7 @@ void import_ch(struct ast_channel *chan, struct misdn_bchannel *bc, struct chan_
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{
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const char *tmp;
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ast_channel_lock(chan);
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tmp = pbx_builtin_getvar_helper(chan, "MISDN_PID");
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if (tmp) {
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ch->other_pid = atoi(tmp);
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@ -4087,6 +4094,7 @@ void import_ch(struct ast_channel *chan, struct misdn_bchannel *bc, struct chan_
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if (tmp) {
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ast_copy_string(bc->keypad, tmp, sizeof(bc->keypad));
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}
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ast_channel_unlock(chan);
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}
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/*! \brief Export parameters to the dialplan environment variables */
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