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Add mosquitto_set_clientid function for security plugins.

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Signed-off-by: Tobias Assarsson <tobias.assarsson@gmail.com>
This commit is contained in:
Tobias Assarsson
2021-07-25 19:54:21 +02:00
parent 114588fff8
commit 2449dc006b
4 changed files with 39 additions and 0 deletions
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15
include/mosquitto_broker.h
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@@ -462,6 +462,21 @@ mosq_EXPORT const char *mosquitto_client_username(const struct mosquitto *client
*/
mosq_EXPORT int mosquitto_set_username(struct mosquitto *client, const char *username);
/* Function: mosquitto_set_clientid
*
* Set the client id for a client.
*
* This effectively forces the client onto another message queue.
* Can be used to scope client ids by prefixing the client id with some user-specific data.
* eg. "client1" could become "user1-client1".
*
* Returns:
* MOSQ_ERR_SUCCESS - on success
* MOSQ_ERR_INVAL - if client is NULL, or if clientid is not a valid utf-8 string
* MOSQ_ERR_NOMEM - on out of memory
*/
mosq_EXPORT int mosquitto_set_clientid(struct mosquitto *client, const char *clientid);
/* =========================================================================
*

1
src/linker-macosx.syms
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@@ -29,6 +29,7 @@ _mosquitto_property_free_all
_mosquitto_pub_topic_check
_mosquitto_realloc
_mosquitto_set_username
_mosquitto_set_clientid
_mosquitto_strdup
_mosquitto_sub_matches_acl
_mosquitto_sub_matches_acl_with_pattern

1
src/linker.syms
View File

@@ -30,6 +30,7 @@
mosquitto_pub_topic_check;
mosquitto_realloc;
mosquitto_set_username;
mosquitto_set_clientid;
mosquitto_strdup;
mosquitto_sub_matches_acl;
mosquitto_sub_matches_acl_with_pattern;

22
src/plugin_public.c
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@@ -268,6 +268,28 @@ int mosquitto_set_username(struct mosquitto *client, const char *username)
}
}
int mosquitto_set_clientid(struct mosquitto *client, const char *clientid)
{
char *u_dup;
char *old;
if(!client) return MOSQ_ERR_INVAL;
int clientid_len = (int)strlen(clientid);
if(mosquitto_validate_utf8(clientid, clientid_len)){
return MOSQ_ERR_INVAL;
}
u_dup = mosquitto__strdup(clientid);
if(!u_dup) return MOSQ_ERR_NOMEM;
old = client->id;
client->id = u_dup;
mosquitto__free(old);
return MOSQ_ERR_SUCCESS;
}
static void disconnect_client(struct mosquitto *context, bool with_will)
{