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Fix memory leak in error paths for action_originate().

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* Fix memory leak of vars in error paths for action_originate().

* Moved struct fast_originate_helper tech and data members to stringfields.

* Simplified ActionID header handling for fast_originate().

* Added doxygen note to ast_request() and ast_call() and the associated
channel callbacks that the data/addr parameters should be treated as const
char *.

Review: https://reviewboard.asterisk.org/r/1690/


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.8@353454 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Richard Mudgett
2012-01-31 16:51:06 +00:00
parent d699845a55
commit c7c7d4dab4
2 changed files with 49 additions and 26 deletions
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16
include/asterisk/channel.h
View File

@@ -512,7 +512,10 @@ struct ast_channel_tech {
int properties; /*!< Technology Properties */
/*! \brief Requester - to set up call data structures (pvt's) */
/*!
* \brief Requester - to set up call data structures (pvt's)
* \note data should be treated as const char *.
*/
struct ast_channel *(* const requester)(const char *type, format_t format, const struct ast_channel *requestor, void *data, int *cause);
int (* const devicestate)(void *data); /*!< Devicestate call back */
@@ -531,8 +534,11 @@ struct ast_channel_tech {
*/
int (* const send_digit_end)(struct ast_channel *chan, char digit, unsigned int duration);
/*! \brief Call a given phone number (address, etc), but don't
* take longer than timeout seconds to do so. */
/*!
* \brief Call a given phone number (address, etc), but don't
* take longer than timeout seconds to do so.
* \note addr should be treated as const char *.
*/
int (* const call)(struct ast_channel *chan, char *addr, int timeout);
/*! \brief Hangup (and possibly destroy) the channel */
@@ -1292,7 +1298,7 @@ struct ast_channel *ast_channel_release(struct ast_channel *chan);
* \param type type of channel to request
* \param format requested channel format (codec)
* \param requestor channel asking for data
* \param data data to pass to the channel requester
* \param data data to pass to the channel requester (Should be treated as const char *)
* \param status status
*
* \details
@@ -1613,7 +1619,7 @@ int __ast_answer(struct ast_channel *chan, unsigned int delay, int cdr_answer);
* \brief Make a call
* \note Absolutely _NO_ channel locks should be held before calling this function.
* \param chan which channel to make the call on
* \param addr destination of the call
* \param addr destination of the call (Should be treated as const char *)
* \param timeout time to wait on for connect
* \details
* Place a call, take no longer than timeout ms.

59
main/manager.c
View File

@@ -3644,12 +3644,12 @@ static int action_command(struct mansession *s, const struct message *m)
/*! \brief helper function for originate */
struct fast_originate_helper {
char tech[AST_MAX_EXTENSION];
/*! data can contain a channel name, extension number, username, password, etc. */
char data[512];
int timeout;
format_t format; /*!< Codecs used for a call */
AST_DECLARE_STRING_FIELDS (
AST_STRING_FIELD(tech);
/*! data can contain a channel name, extension number, username, password, etc. */
AST_STRING_FIELD(data);
AST_STRING_FIELD(app);
AST_STRING_FIELD(appdata);
AST_STRING_FIELD(cid_name);
@@ -3663,6 +3663,20 @@ struct fast_originate_helper {
struct ast_variable *vars;
};
/*!
* \internal
*
* \param doomed Struct to destroy.
*
* \return Nothing
*/
static void destroy_fast_originate_helper(struct fast_originate_helper *doomed)
{
ast_variables_destroy(doomed->vars);
ast_string_field_free_memory(doomed);
ast_free(doomed);
}
static void *fast_originate(void *data)
{
struct fast_originate_helper *in = data;
@@ -3672,16 +3686,20 @@ static void *fast_originate(void *data)
char requested_channel[AST_CHANNEL_NAME];
if (!ast_strlen_zero(in->app)) {
res = ast_pbx_outgoing_app(in->tech, in->format, in->data, in->timeout, in->app, in->appdata, &reason, 1,
res = ast_pbx_outgoing_app(in->tech, in->format, (char *) in->data,
in->timeout, in->app, in->appdata, &reason, 1,
S_OR(in->cid_num, NULL),
S_OR(in->cid_name, NULL),
in->vars, in->account, &chan);
} else {
res = ast_pbx_outgoing_exten(in->tech, in->format, in->data, in->timeout, in->context, in->exten, in->priority, &reason, 1,
res = ast_pbx_outgoing_exten(in->tech, in->format, (char *) in->data,
in->timeout, in->context, in->exten, in->priority, &reason, 1,
S_OR(in->cid_num, NULL),
S_OR(in->cid_name, NULL),
in->vars, in->account, &chan);
}
/* Any vars memory was passed to the ast_pbx_outgoing_xxx() calls. */
in->vars = NULL;
if (!chan) {
snprintf(requested_channel, AST_CHANNEL_NAME, "%s/%s", in->tech, in->data);
@@ -3689,7 +3707,7 @@ static void *fast_originate(void *data)
/* Tell the manager what happened with the channel */
chans[0] = chan;
ast_manager_event_multichan(EVENT_FLAG_CALL, "OriginateResponse", chan ? 1 : 0, chans,
"%s%s"
"%s"
"Response: %s\r\n"
"Channel: %s\r\n"
"Context: %s\r\n"
@@ -3698,7 +3716,7 @@ static void *fast_originate(void *data)
"Uniqueid: %s\r\n"
"CallerIDNum: %s\r\n"
"CallerIDName: %s\r\n",
in->idtext, ast_strlen_zero(in->idtext) ? "" : "\r\n", res ? "Failure" : "Success",
in->idtext, res ? "Failure" : "Success",
chan ? chan->name : requested_channel, in->context, in->exten, reason,
chan ? chan->uniqueid : "<null>",
S_OR(in->cid_num, "<unknown>"),
@@ -3709,8 +3727,7 @@ static void *fast_originate(void *data)
if (chan) {
ast_channel_unlock(chan);
}
ast_string_field_free_memory(in);
ast_free(in);
destroy_fast_originate_helper(in);
return NULL;
}
@@ -4031,18 +4048,19 @@ static int action_originate(struct mansession *s, const struct message *m)
vars = astman_get_variables(m);
if (ast_true(async)) {
struct fast_originate_helper *fast = ast_calloc(1, sizeof(*fast));
struct fast_originate_helper *fast;
fast = ast_calloc(1, sizeof(*fast));
if (!fast || ast_string_field_init(fast, 252)) {
if (fast) {
ast_free(fast);
}
ast_free(fast);
ast_variables_destroy(vars);
res = -1;
} else {
if (!ast_strlen_zero(id)) {
ast_string_field_build(fast, idtext, "ActionID: %s", id);
ast_string_field_build(fast, idtext, "ActionID: %s\r\n", id);
}
ast_copy_string(fast->tech, tech, sizeof(fast->tech));
ast_copy_string(fast->data, data, sizeof(fast->data));
ast_string_field_set(fast, tech, tech);
ast_string_field_set(fast, data, data);
ast_string_field_set(fast, app, app);
ast_string_field_set(fast, appdata, appdata);
ast_string_field_set(fast, cid_num, l);
@@ -4055,8 +4073,7 @@ static int action_originate(struct mansession *s, const struct message *m)
fast->timeout = to;
fast->priority = pi;
if (ast_pthread_create_detached(&th, NULL, fast_originate, fast)) {
ast_string_field_free_memory(fast);
ast_free(fast);
destroy_fast_originate_helper(fast);
res = -1;
} else {
res = 0;
@@ -4064,14 +4081,14 @@ static int action_originate(struct mansession *s, const struct message *m)
}
} else if (!ast_strlen_zero(app)) {
res = ast_pbx_outgoing_app(tech, format, data, to, app, appdata, &reason, 1, l, n, vars, account, NULL);
/* Any vars memory was passed to ast_pbx_outgoing_app(). */
} else {
if (exten && context && pi) {
res = ast_pbx_outgoing_exten(tech, format, data, to, context, exten, pi, &reason, 1, l, n, vars, account, NULL);
/* Any vars memory was passed to ast_pbx_outgoing_exten(). */
} else {
astman_send_error(s, m, "Originate with 'Exten' requires 'Context' and 'Priority'");
if (vars) {
ast_variables_destroy(vars);
}
ast_variables_destroy(vars);
return 0;
}
}