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Add support for authenticating on a NOTIFY request. This is useful for phones that require it when sending them a special packet to get them to do something (such as reload their configuration).

Browse Source 
(closes issue #9896)
Reported by: IgorG
Patches:
      sipnotify-113980-v14.patch uploaded by IgorG (license 20)


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@114529 65c4cc65-6c06-0410-ace0-fbb531ad65f3
1.6.1
Joshua Colp 17 years ago
parent a3f3613d66
commit 1e066813ac
2 changed files with 115 additions and 49 deletions
Show Stats Download Patch File Download Diff File

148
channels/chan_sip.c
Unescape View File

@ -1278,6 +1278,7 @@ struct sip_pvt {
struct ast_channel *owner; /*!< Who owns us (if we have an owner) */
struct sip_route *route; /*!< Head of linked list of routing steps (fm Record-Route) */
int route_persistant; /*!< Is this the "real" route? */
struct ast_variable *notify_headers; /*!< Custom notify type */
struct sip_auth *peerauth; /*!< Realm authentication */
int noncecount; /*!< Nonce-count */
char lastmsg[256]; /*!< Last Message sent/received */
@ -1832,7 +1833,6 @@ static int __sip_xmit(struct sip_pvt *p, struct ast_str *data, int len);
static int __sip_reliable_xmit(struct sip_pvt *p, int seqno, int resp, struct ast_str *data, int len, int fatal, int sipmethod);
static int __transmit_response(struct sip_pvt *p, const char *msg, const struct sip_request *req, enum xmittype reliable);
static int retrans_pkt(const void *data);
static int transmit_sip_request(struct sip_pvt *p, struct sip_request *req);
static int transmit_response_using_temp(ast_string_field callid, struct sockaddr_in *sin, int useglobal_nat, const int intended_method, const struct sip_request *req, const char *msg);
static int transmit_response(struct sip_pvt *p, const char *msg, const struct sip_request *req);
static int transmit_response_reliable(struct sip_pvt *p, const char *msg, const struct sip_request *req);
@ -1852,6 +1852,7 @@ static int transmit_message_with_text(struct sip_pvt *p, const char *text);
static int transmit_refer(struct sip_pvt *p, const char *dest);
static int transmit_notify_with_mwi(struct sip_pvt *p, int newmsgs, int oldmsgs, char *vmexten);
static int transmit_notify_with_sipfrag(struct sip_pvt *p, int cseq, char *message, int terminate);
static int transmit_notify_custom(struct sip_pvt *p, struct ast_variable *vars);
static int transmit_register(struct sip_registry *r, int sipmethod, const char *auth, const char *authheader);
static int send_response(struct sip_pvt *p, struct sip_request *req, enum xmittype reliable, int seqno);
static int send_request(struct sip_pvt *p, struct sip_request *req, enum xmittype reliable, int seqno);
@ -1990,7 +1991,7 @@ static char *sip_show_history(struct ast_cli_entry *e, int cmd, struct ast_cli_a
static char *sip_do_debug_ip(int fd, char *arg);
static char *sip_do_debug_peer(int fd, char *arg);
static char *sip_do_debug(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a);
static char *sip_notify(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a);
static char *sip_cli_notify(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a);
static char *sip_do_history_deprecated(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a);
static char *sip_set_history(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a);
static int sip_dtmfmode(struct ast_channel *chan, void *data);
@ -2133,6 +2134,7 @@ static int local_attended_transfer(struct sip_pvt *transferer, struct sip_dual *
/*------Response handling functions */
static void handle_response_invite(struct sip_pvt *p, int resp, char *rest, struct sip_request *req, int seqno);
static void handle_response_notify(struct sip_pvt *p, int resp, char *rest, struct sip_request *req, int seqno);
static void handle_response_refer(struct sip_pvt *p, int resp, char *rest, struct sip_request *req, int seqno);
static int handle_response_register(struct sip_pvt *p, int resp, char *rest, struct sip_request *req, int seqno);
static void handle_response(struct sip_pvt *p, int resp, char *rest, struct sip_request *req, int seqno);
@ -4575,6 +4577,10 @@ static void __sip_destroy(struct sip_pvt *p, int lockowner, int lockdialoglist)
if (p->options)
ast_free(p->options);
if (p->notify_headers) {
ast_variables_destroy(p->notify_headers);
p->notify_headers = NULL;
}
if (p->rtp) {
ast_rtp_destroy(p->rtp);
}
@ -9002,6 +9008,7 @@ static void initreqprep(struct sip_request *req, struct sip_pvt *p, int sipmetho
static int transmit_invite(struct sip_pvt *p, int sipmethod, int sdp, int init)
{
struct sip_request req;
struct ast_variable *var;
req.method = sipmethod;
if (init) {/* Bump branch even on initial requests */
@ -9050,6 +9057,14 @@ static int transmit_invite(struct sip_pvt *p, int sipmethod, int sdp, int init)
add_header(&req, "Allow", ALLOWED_METHODS);
add_header(&req, "Supported", SUPPORTED_EXTENSIONS);
if(p->notify_headers) {
char buf[512];
for (var = p->notify_headers; var; var = var->next) {
ast_copy_string(buf, var->value, sizeof(buf));
add_header(&req, var->name, ast_unescape_semicolon(buf));
}
}
if (p->options && p->options->addsipheaders && p->owner) {
struct ast_channel *chan = p->owner; /* The owner channel */
struct varshead *headp;
@ -9098,7 +9113,9 @@ static int transmit_invite(struct sip_pvt *p, int sipmethod, int sdp, int init)
} else if (p->rtp)
add_sdp(&req, p, FALSE);
} else {
add_header_contentLength(&req, 0);
if (!p->notify_headers) {
add_header_contentLength(&req, 0);
}
}
if (!p->initreq.headers)
@ -9107,7 +9124,7 @@ static int transmit_invite(struct sip_pvt *p, int sipmethod, int sdp, int init)
return send_request(p, &req, init ? XMIT_CRITICAL : XMIT_RELIABLE, p->ocseq);
}
/*! \brief Used in the SUBSCRIBE notification subsystem */
/*! \brief Used in the SUBSCRIBE notification subsystem (RFC3265) */
static int transmit_state_notify(struct sip_pvt *p, int state, int full, int timeout)
{
struct ast_str *tmp = ast_str_alloca(4000);
@ -9290,7 +9307,7 @@ static int transmit_state_notify(struct sip_pvt *p, int state, int full, int tim
return send_request(p, &req, XMIT_RELIABLE, p->ocseq);
}
/*! \brief Notify user of messages waiting in voicemail
/*! \brief Notify user of messages waiting in voicemail (RFC3842)
\note - Notification only works for registered peers with mailbox= definitions
in sip.conf
- We use the SIP Event package message-summary
@ -9329,15 +9346,7 @@ static int transmit_notify_with_mwi(struct sip_pvt *p, int newmsgs, int oldmsgs,
return send_request(p, &req, XMIT_RELIABLE, p->ocseq);
}
/*! \brief Transmit SIP request unreliably (only used in sip_notify subsystem) */
static int transmit_sip_request(struct sip_pvt *p, struct sip_request *req)
{
if (!p->initreq.headers) /* Initialize first request before sending */
initialize_initreq(p, req);
return send_request(p, req, XMIT_UNRELIABLE, p->ocseq);
}
/*! \brief Notify a transferring party of the status of transfer */
/*! \brief Notify a transferring party of the status of transfer (RFC3515) */
static int transmit_notify_with_sipfrag(struct sip_pvt *p, int cseq, char *message, int terminate)
{
struct sip_request req;
@ -9363,6 +9372,32 @@ static int transmit_notify_with_sipfrag(struct sip_pvt *p, int cseq, char *messa
return send_request(p, &req, XMIT_RELIABLE, p->ocseq);
}
/*! \brief Notify device with custom headers from sip_notify.conf */
static int transmit_notify_custom(struct sip_pvt *p, struct ast_variable *vars) {
struct sip_request req;
struct ast_variable *var, *newvar;
initreqprep(&req, p, SIP_NOTIFY);
/* Copy notify vars and add headers */
p->notify_headers = newvar = ast_variable_new("Subscription-State", "terminated", "");
add_header(&req, newvar->name, newvar->value);
for (var = vars; var; var = var->next) {
char buf[512];
ast_debug(2, " Adding pair %s=%s\n", var->name, var->value);
ast_copy_string(buf, var->value, sizeof(buf));
add_header(&req, var->name, ast_unescape_semicolon(buf));
newvar->next = ast_variable_new(var->name, var->value, "");
newvar = newvar->next;
}
if (!p->initreq.headers) { /* Initialize first request before sending */
initialize_initreq(p, &req);
}
return send_request(p, &req, XMIT_UNRELIABLE, p->ocseq);
}
static const struct _map_x_s regstatestrings[] = {
{ REG_STATE_FAILED, "Failed" },
{ REG_STATE_UNREGISTERED, "Unregistered"},
@ -14689,7 +14724,7 @@ static char *sip_do_debug(struct ast_cli_entry *e, int cmd, struct ast_cli_args
}
/*! \brief Cli command to send SIP notify to peer */
static char *sip_notify(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
static char *sip_cli_notify(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
{
struct ast_variable *varlist;
int i;
@ -14706,7 +14741,6 @@ static char *sip_notify(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a
return complete_sipnotify(a->line, a->word, a->pos, a->n);
}
if (a->argc < 4)
return CLI_SHOWUSAGE;
@ -14724,8 +14758,6 @@ static char *sip_notify(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a
for (i = 3; i < a->argc; i++) {
struct sip_pvt *p;
struct sip_request req;
struct ast_variable *var;
if (!(p = sip_alloc(NULL, NULL, 0, SIP_NOTIFY))) {
ast_log(LOG_WARNING, "Unable to build sip pvt data for notify (memory/socket error)\n");
@ -14741,13 +14773,8 @@ static char *sip_notify(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a
continue;
}
initreqprep(&req, p, SIP_NOTIFY);
for (var = varlist; var; var = var->next) {
char buf[512];
ast_copy_string(buf, var->value, sizeof(buf));
add_header(&req, var->name, ast_unescape_semicolon(buf));
}
/* Notify is outgoing call */
ast_set_flag(&p->flags[0], SIP_OUTGOING);
/* Recalculate our side, and recalculate Call ID */
ast_sip_ouraddrfor(&p->sa.sin_addr, &p->ourip);
@ -14757,9 +14784,8 @@ static char *sip_notify(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a
ao2_t_link(dialogs, p, "Linking in new name");
ast_cli(a->fd, "Sending NOTIFY of type '%s' to '%s'\n", a->argv[2], a->argv[i]);
dialog_ref(p, "bump the count of p, which transmit_sip_request will decrement.");
transmit_sip_request(p, &req);
sip_scheddestroy(p, DEFAULT_TRANS_TIMEOUT);
dialog_unref(p, "unref pvt at end of for loop in sip_notify");
sip_scheddestroy(p, SIP_TRANS_TIMEOUT);
transmit_notify_custom(p, varlist);
}
return CLI_SUCCESS;
@ -15733,6 +15759,51 @@ static void handle_response_invite(struct sip_pvt *p, int resp, char *rest, stru
ast_log(LOG_WARNING, "Could not transmit message in dialog %s\n", p->callid);
}
/* \brief Handle SIP response in NOTIFY transaction
We've sent a NOTIFY, now handle responses to it
*/
static void handle_response_notify(struct sip_pvt *p, int resp, char *rest, struct sip_request *req, int seqno)
{
switch (resp) {
case 200: /* Notify accepted */
/* They got the notify, this is the end */
if (p->owner) {
if (!p->refer) {
ast_log(LOG_WARNING, "Notify answer on an owned channel? - %s\n", p->owner->name);
ast_queue_hangup(p->owner);
} else {
ast_debug(4, "Got OK on REFER Notify message\n");
}
} else {
if (p->subscribed == NONE) {
ast_debug(4, "Got 200 accepted on NOTIFY\n");
p->needdestroy = 1;
}
if (ast_test_flag(&p->flags[1], SIP_PAGE2_STATECHANGEQUEUE)) {
/* Ready to send the next state we have on queue */
ast_clear_flag(&p->flags[1], SIP_PAGE2_STATECHANGEQUEUE);
cb_extensionstate((char *)p->context, (char *)p->exten, p->laststate, (void *) p);
}
}
break;
case 401: /* Not www-authorized on SIP method */
case 407: /* Proxy auth */
if (!p->notify_headers) {
break; /* Only device notify can use NOTIFY auth */
}
ast_string_field_set(p, theirtag, NULL);
if (ast_strlen_zero(p->authname)) {
ast_log(LOG_WARNING, "Asked to authenticate NOTIFY to %s:%d but we have no matching peer or realm auth!\n", ast_inet_ntoa(p->recv.sin_addr), ntohs(p->recv.sin_port));
p->needdestroy = 1;
}
if (p->authtries > 1 || do_proxy_auth(p, req, resp, SIP_NOTIFY, 0)) {
ast_log(LOG_NOTICE, "Failed to authenticate on NOTYFY to '%s'\n", get_header(&p->initreq, "From"));
p->needdestroy = 1;
}
break;
}
}
/* \brief Handle SIP response in REFER transaction
We've sent a REFER, now handle responses to it
*/
@ -16082,22 +16153,7 @@ static void handle_response(struct sip_pvt *p, int resp, char *rest, struct sip_
} else if (sipmethod == SIP_INVITE) {
handle_response_invite(p, resp, rest, req, seqno);
} else if (sipmethod == SIP_NOTIFY) {
/* They got the notify, this is the end */
if (p->owner) {
if (!p->refer) {
ast_log(LOG_WARNING, "Notify answer on an owned channel? - %s\n", p->owner->name);
ast_queue_hangup(p->owner);
} else
ast_debug(4, "Got OK on REFER Notify message\n");
} else {
if (p->subscribed == NONE)
p->needdestroy = 1;
if (ast_test_flag(&p->flags[1], SIP_PAGE2_STATECHANGEQUEUE)) {
/* Ready to send the next state we have on queue */
ast_clear_flag(&p->flags[1], SIP_PAGE2_STATECHANGEQUEUE);
cb_extensionstate((char *)p->context, (char *)p->exten, p->laststate, (void *) p);
}
}
handle_response_notify(p, resp, rest, req, seqno);
} else if (sipmethod == SIP_REGISTER)
res = handle_response_register(p, resp, rest, req, seqno);
else if (sipmethod == SIP_BYE) /* Ok, we're ready to go */
@ -16111,6 +16167,8 @@ static void handle_response(struct sip_pvt *p, int resp, char *rest, struct sip_
case 407: /* Proxy auth required */
if (sipmethod == SIP_INVITE)
handle_response_invite(p, resp, rest, req, seqno);
else if (sipmethod == SIP_NOTIFY)
handle_response_notify(p, resp, rest, req, seqno);
else if (sipmethod == SIP_REFER)
handle_response_refer(p, resp, rest, req, seqno);
else if (p->registry && sipmethod == SIP_REGISTER)
@ -22407,7 +22465,7 @@ static struct ast_cli_entry cli_sip[] = {
AST_CLI_DEFINE(sip_show_registry, "List SIP registration status"),
AST_CLI_DEFINE(sip_unregister, "Unregister (force expiration) a SIP peer from the registery\n"),
AST_CLI_DEFINE(sip_show_settings, "Show SIP global settings"),
AST_CLI_DEFINE(sip_notify, "Send a notify packet to a SIP peer"),
AST_CLI_DEFINE(sip_cli_notify, "Send a notify packet to a SIP peer"),
AST_CLI_DEFINE(sip_show_channel, "Show detailed SIP channel info"),
AST_CLI_DEFINE(sip_show_history, "Show SIP dialog history"),
AST_CLI_DEFINE(sip_show_peer, "Show details on specific SIP peer"),

16
configs/sip_notify.conf.sample
Unescape View File

@ -2,11 +2,22 @@
Event=>check-sync
Content-Length=>0
; Untested
[sipura-check-cfg]
Event=>resync
Content-Length=>0
[linksys-cold-restart]
Event=>reboot_now
Content-Length=>0
[linksys-warm-restart]
Event=>restart_now
Content-Length=>0
[sipura-get-report]
Event=>report
Content-Length=>0
; Untested
[grandstream-check-cfg]
Event=>sys-control
@ -16,17 +27,14 @@ Event=>sys-control
Event=>check-sync
Content-Length=>0
; Tested
[snom-check-cfg]
Event=>check-sync\;reboot=false
Content-Length=>0
; Tested
[aastra-check-cfg]
Event=>check-sync
Content-Length=>0
; Tested
[aastra-xml]
Event=>aastra-xml
Content-Length=>0

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