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pbx_dundi: added IPv4/IPv6 dual bind support to DUNDi

Browse Source 
ASTERISK-28234
Reported-by: Kirsty Tyerman

Change-Id: I5d6e6b52dbe51415046bb3953fd16f5b421bc2e1
16.5
Kirsty Tyerman 6 years ago committed by George Joseph
parent eefd53b718
commit a1c84709b8
3 changed files with 114 additions and 26 deletions
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6
configs/samples/dundi.conf.sample
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@ -21,8 +21,10 @@
;phone=+12565551212
;
;
; Specify bind address and port number. Default is
; 4520
; Specify bind address. IPv6 addresses are accepted. Default is 0.0.0.0
; You can specify 'bindaddr2' to bind to another address however
; 'bindaddr and 'bindaddr2' need to be different IP protocols.
; Specify port number. Default is 4520.
;
;bindaddr=0.0.0.0
;port=4520

3
doc/CHANGES-staging/pbx_dundi_ipv6.txt
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@ -0,0 +1,3 @@
Subject: pbx_dundi
The DUNDi PBX module now supports IPv4/IPv6 dual binding.

131
pbx/pbx_dundi.c
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@ -183,7 +183,8 @@ enum {
static struct io_context *io;
static struct ast_sched_context *sched;
static int netsocket = -1;
static int netsocket = -1; /* Socket for bindaddr if only one bindaddr. Otherwise the IPv4 socket when bindaddr2 given. */
static int netsocket2 = -1; /* IPv6 socket when bindaddr2 given. */
static pthread_t netthreadid = AST_PTHREADT_NULL;
static pthread_t precachethreadid = AST_PTHREADT_NULL;
static pthread_t clearcachethreadid = AST_PTHREADT_NULL;
@ -2079,14 +2080,14 @@ static int handle_frame(struct dundi_hdr *h, struct ast_sockaddr *sin, int datal
return 0;
}
static int socket_read(int *id, int fd, short events, void *cbdata)
static int socket_read(int *id, int fd, short events, void *sock)
{
struct ast_sockaddr sin;
int res;
struct dundi_hdr *h;
char buf[MAX_PACKET_SIZE];
res = ast_recvfrom(netsocket, buf, sizeof(buf), 0, &sin);
res = ast_recvfrom(*((int *)sock), buf, sizeof(buf), 0, &sin);
if (res < 0) {
if (errno != ECONNREFUSED)
ast_log(LOG_WARNING, "Error: %s\n", strerror(errno));
@ -2196,7 +2197,11 @@ static void *network_thread(void *ignore)
from the network, and queue them for delivery to the channels */
int res;
/* Establish I/O callback for socket read */
int *socket_read_id = ast_io_add(io, netsocket, socket_read, AST_IO_IN, NULL);
int *socket_read_id = ast_io_add(io, netsocket, socket_read, AST_IO_IN, &netsocket);
int *socket_read_id2 = NULL;
if (netsocket2 >= 0) {
socket_read_id2 = ast_io_add(io, netsocket2, socket_read, AST_IO_IN, &netsocket2);
}
while (!dundi_shutdown) {
res = ast_sched_wait(sched);
@ -2213,6 +2218,10 @@ static void *network_thread(void *ignore)
ast_io_remove(io, socket_read_id);
if (socket_read_id2) {
ast_io_remove(io, socket_read_id2);
}
return NULL;
}
@ -3162,7 +3171,17 @@ static int dundi_xmit(struct dundi_packet *pack)
int res;
if (dundidebug)
dundi_showframe(pack->h, 0, &pack->parent->addr, pack->datalen - sizeof(struct dundi_hdr));
res = ast_sendto(netsocket, pack->data, pack->datalen, 0, &pack->parent->addr);
if (netsocket2 < 0) {
res = ast_sendto(netsocket, pack->data, pack->datalen, 0, &pack->parent->addr);
} else {
if (ast_sockaddr_is_ipv4(&pack->parent->addr)) {
res = ast_sendto(netsocket, pack->data, pack->datalen, 0, &pack->parent->addr);
} else {
res = ast_sendto(netsocket2, pack->data, pack->datalen, 0, &pack->parent->addr);
}
}
if (res < 0) {
ast_log(LOG_WARNING, "Failed to transmit to '%s': %s\n",
ast_sockaddr_stringify(&pack->parent->addr), strerror(errno));
@ -4916,7 +4935,7 @@ static void set_host_ipaddr(struct ast_sockaddr *sin)
get_ipaddress(ipaddr, sizeof(ipaddr), hn, family);
}
static int set_config(char *config_file, struct ast_sockaddr *sin, int reload)
static int set_config(char *config_file, struct ast_sockaddr *sin, int reload, struct ast_sockaddr *sin2)
{
struct ast_config *cfg;
struct ast_variable *v;
@ -4927,7 +4946,8 @@ static int set_config(char *config_file, struct ast_sockaddr *sin, int reload)
int port = 0;
int globalpcmodel = 0;
dundi_eid testeid;
char bind_addr[80];
char bind_addr[80]={0,};
char bind_addr2[80]={0,};
if (!(cfg = ast_config_load(config_file, config_flags)) || cfg == CONFIG_STATUS_FILEINVALID) {
ast_log(LOG_ERROR, "Unable to load config %s\n", config_file);
@ -4957,6 +4977,12 @@ static int set_config(char *config_file, struct ast_sockaddr *sin, int reload)
ast_log(LOG_WARNING, "Invalid host/IP '%s'\n", v->value);
}
}
} else if (!strcasecmp(v->name, "bindaddr2")) {
if (get_ipaddress(bind_addr2, sizeof(bind_addr2), v->value, AF_UNSPEC) == 0) {
if (!ast_sockaddr_parse(sin2, bind_addr2, 0)) {
ast_log(LOG_WARNING, "Invalid host/IP '%s'\n", v->value);
}
}
} else if (!strcasecmp(v->name, "authdebug")) {
authdebug = ast_true(v->value);
} else if (!strcasecmp(v->name, "ttl")) {
@ -5031,6 +5057,10 @@ static int set_config(char *config_file, struct ast_sockaddr *sin, int reload)
set_host_ipaddr(sin);
if (!ast_sockaddr_isnull(sin2)) {
ast_sockaddr_set_port(sin2, port);
}
AST_LIST_UNLOCK(&peers);
mark_mappings();
@ -5093,6 +5123,14 @@ static int unload_module(void)
clearcachethreadid = AST_PTHREADT_NULL;
}
if (netsocket >= 0) {
close(netsocket);
}
if (netsocket2 >= 0) {
close(netsocket2);
}
mark_mappings();
prune_mappings();
mark_peers();
@ -5118,10 +5156,12 @@ static int unload_module(void)
static int reload(void)
{
struct ast_sockaddr sin;
struct ast_sockaddr sin2;
ast_sockaddr_setnull(&sin);
ast_sockaddr_setnull(&sin2);
if (set_config("dundi.conf", &sin, 1))
if (set_config("dundi.conf", &sin, 1, &sin2))
return AST_MODULE_LOAD_FAILURE;
return AST_MODULE_LOAD_SUCCESS;
@ -5130,6 +5170,7 @@ static int reload(void)
static int load_module(void)
{
struct ast_sockaddr sin;
struct ast_sockaddr sin2;
dundi_set_output(dundi_debug_output);
dundi_set_error(dundi_error_output);
@ -5143,28 +5184,68 @@ static int load_module(void)
}
ast_sockaddr_setnull(&sin);
ast_sockaddr_setnull(&sin2);
if (set_config("dundi.conf", &sin, 0)) {
if (set_config("dundi.conf", &sin, 0, &sin2)) {
goto declined;
}
if (ast_sockaddr_is_ipv6(&sin)) {
netsocket = socket(AF_INET6, SOCK_DGRAM, IPPROTO_IP);
} else {
netsocket = socket(AF_INET, SOCK_DGRAM, IPPROTO_IP);
}
if (!ast_sockaddr_isnull(&sin2)) {
if ((ast_sockaddr_is_ipv4(&sin) == ast_sockaddr_is_ipv4(&sin2)) || (ast_sockaddr_is_ipv6(&sin) == ast_sockaddr_is_ipv6(&sin2))) {
ast_log(LOG_ERROR, "bindaddr & bindaddr2 should be different IP protocols.\n");
goto declined;
}
if (netsocket < 0) {
ast_log(LOG_ERROR, "Unable to create network socket: %s\n", strerror(errno));
goto declined;
}
if (ast_bind(netsocket, &sin)) {
ast_log(LOG_ERROR, "Unable to bind to %s : %s\n",
ast_sockaddr_stringify(&sin), strerror(errno));
goto declined;
}
/*bind netsocket to ipv4, netsocket2 to ipv6 */
ast_set_qos(netsocket, tos, 0, "DUNDi");
netsocket = socket(AF_INET, SOCK_DGRAM, IPPROTO_IP);
netsocket2 = socket(AF_INET6, SOCK_DGRAM, IPPROTO_IP);
if (netsocket < 0 || netsocket2 < 0) {
ast_log(LOG_ERROR, "Unable to create network socket: %s\n", strerror(errno));
goto declined;
}
if (ast_sockaddr_is_ipv4(&sin)) {
if (ast_bind(netsocket, &sin)) {
ast_log(LOG_ERROR, "Unable to bind to %s : %s\n",
ast_sockaddr_stringify(&sin), strerror(errno));
goto declined;
}
if (ast_bind(netsocket2, &sin2)) {
ast_log(LOG_ERROR, "Unable to bind to %s : %s\n",
ast_sockaddr_stringify(&sin2), strerror(errno));
goto declined;
}
} else {
if (ast_bind(netsocket, &sin2)) {
ast_log(LOG_ERROR, "Unable to bind to %s : %s\n",
ast_sockaddr_stringify(&sin2), strerror(errno));
goto declined;
}
if (ast_bind(netsocket2, &sin)) {
ast_log(LOG_ERROR, "Unable to bind to %s : %s\n",
ast_sockaddr_stringify(&sin), strerror(errno));
goto declined;
}
}
ast_set_qos(netsocket, tos, 0, "DUNDi");
ast_set_qos(netsocket2, tos, 0, "DUNDi");
} else {
if (ast_sockaddr_is_ipv6(&sin)) {
netsocket = socket(AF_INET6, SOCK_DGRAM, IPPROTO_IP);
} else {
netsocket = socket(AF_INET, SOCK_DGRAM, IPPROTO_IP);
}
if (netsocket < 0) {
ast_log(LOG_ERROR, "Unable to create network socket: %s\n", strerror(errno));
goto declined;
}
if (ast_bind(netsocket, &sin)) {
ast_log(LOG_ERROR, "Unable to bind to %s : %s\n",
ast_sockaddr_stringify(&sin), strerror(errno));
goto declined;
}
ast_set_qos(netsocket, tos, 0, "DUNDi");
}
if (start_network_thread()) {
ast_log(LOG_ERROR, "Unable to start network thread\n");
@ -5179,6 +5260,8 @@ static int load_module(void)
ast_custom_function_register(&dundi_result_function);
ast_verb(2, "DUNDi Ready and Listening on %s\n", ast_sockaddr_stringify(&sin));
if (!ast_sockaddr_isnull(&sin2))
ast_verb(2, "DUNDi Ready and Listening on %s\n", ast_sockaddr_stringify(&sin2));
return AST_MODULE_LOAD_SUCCESS;

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