/* adds a sock_info structure to the corresponding proto list
* return 0 on success, -1 on error */
int add_listen_iface(char* name, unsigned short port, unsigned short proto,
enum si_flags flags)
{
struct socket_info** list;
unsigned short c_proto;
c_proto=(proto)?proto:PROTO_UDP;
do{
list=get_sock_info_list(c_proto);
if (list==0){
LOG(L_ERR, "ERROR: add_listen_iface: get_sock_info_list failed\n");
goto error;
}
if (port==0){ /* use default port */
port=
#ifdef USE_TLS
((c_proto)==PROTO_TLS)?tls_port_no:
#endif
port_no;
}
#ifdef USE_TLS
else if ((c_proto==PROTO_TLS) && (proto==0)){
/* -l ip:port => on udp:ip:port; tcp:ip:port and tls:ip:port+1? */
port++;
}
#endif
if (new_sock2list(name, port, c_proto, flags, list)<0){
LOG(L_ERR, "ERROR: add_listen_iface: new_sock2list failed\n");
goto error;
}
}while( (proto==0) && (c_proto=next_proto(c_proto)));
return 0;
error:
return -1;
}
int add_listener(struct socket_id *sock, enum si_flags flags)
{
/*
* XXX: using the new version, the protocol _MUST_ be specified
* otherwise UDP will be assumed
*/
enum sip_protos proto = sock->proto;
/* validate the protocol */
if (proto < PROTO_FIRST || proto >= PROTO_LAST) {
LM_BUG("invalid protocol number %d\n", proto);
return -1;
}
/* convert to socket_info */
if (new_sock2list(sock->name, sock->port, sock->proto, sock->adv_name, sock->adv_port,
sock->children, flags, &protos[proto].listeners) < 0) {
LM_ERR("cannot add socket to the list\n");
return -1;
}
return 0;
}
/* add all family type addresses of interface if_name to the socket_info array
* if if_name==0, adds all addresses on all interfaces
* WARNING: it only works with ipv6 addresses on FreeBSD
* return: -1 on error, 0 on success
*/
int add_interfaces(char* if_name, int family, unsigned short port,
unsigned short proto,
struct socket_info** list)
{
struct ifconf ifc;
struct ifreq ifr;
struct ifreq ifrcopy;
char* last;
char* p;
int size;
int lastlen;
int s;
char* tmp;
struct ip_addr addr;
int ret;
enum si_flags flags;
#ifdef HAVE_SOCKADDR_SA_LEN
#ifndef MAX
#define MAX(a,b) ( ((a)>(b))?(a):(b))
#endif
#endif
/* ipv4 or ipv6 only*/
flags=SI_NONE;
s=socket(family, SOCK_DGRAM, 0);
ret=-1;
lastlen=0;
ifc.ifc_req=0;
for (size=100; ; size*=2){
ifc.ifc_len=size*sizeof(struct ifreq);
ifc.ifc_req=(struct ifreq*) pkg_malloc(size*sizeof(struct ifreq));
if (ifc.ifc_req==0){
LOG(L_ERR, "ERROR: add_interfaces: memory allocation failure\n");
goto error;
}
if (ioctl(s, SIOCGIFCONF, &ifc)==-1){
if(errno==EBADF) return 0; /* invalid descriptor => no such ifs*/
LOG(L_ERR, "ERROR: add_interfaces: ioctl failed: %s\n",
strerror(errno));
goto error;
}
if ((lastlen) && (ifc.ifc_len==lastlen)) break; /*success,
len not changed*/
lastlen=ifc.ifc_len;
/* try a bigger array*/
pkg_free(ifc.ifc_req);
}
last=(char*)ifc.ifc_req+ifc.ifc_len;
for(p=(char*)ifc.ifc_req; p<last;
p+=
#ifdef __OS_linux
sizeof(ifr) /* works on x86_64 too */
#else
(sizeof(ifr.ifr_name)+
#ifdef HAVE_SOCKADDR_SA_LEN
MAX(ifr.ifr_addr.sa_len, sizeof(struct sockaddr))
#else
( (ifr.ifr_addr.sa_family==AF_INET)?
sizeof(struct sockaddr_in):
((ifr.ifr_addr.sa_family==AF_INET6)?
sizeof(struct sockaddr_in6):sizeof(struct sockaddr)) )
#endif
)
#endif
)
{
/* copy contents into ifr structure
* warning: it might be longer (e.g. ipv6 address) */
memcpy(&ifr, p, sizeof(ifr));
if (ifr.ifr_addr.sa_family!=family){
/*printf("strange family %d skipping...\n",
ifr->ifr_addr.sa_family);*/
continue;
}
/*get flags*/
ifrcopy=ifr;
if (ioctl(s, SIOCGIFFLAGS, &ifrcopy)!=-1){ /* ignore errors */
/* ignore down ifs only if listening on all of them*/
if (if_name==0){
/* if if not up, skip it*/
if (!(ifrcopy.ifr_flags & IFF_UP)) continue;
}
}
if ((if_name==0)||
(strncmp(if_name, ifr.ifr_name, sizeof(ifr.ifr_name))==0)){
/*add address*/
sockaddr2ip_addr(&addr,
(struct sockaddr*)(p+(long)&((struct ifreq*)0)->ifr_addr));
if ((tmp=ip_addr2a(&addr))==0) goto error;
/* check if loopback */
if (ifrcopy.ifr_flags & IFF_LOOPBACK)
flags|=SI_IS_LO;
/* add it to one of the lists */
if (new_sock2list(tmp, port, proto, flags, list)!=0){
LOG(L_ERR, "ERROR: add_interfaces: new_sock2list failed\n");
goto error;
}
ret=0;
}
/*
printf("%s:\n", ifr->ifr_name);
printf(" ");
print_sockaddr(&(ifr->ifr_addr));
printf(" ");
ls_ifflags(ifr->ifr_name, family, options);
printf("\n");*/
}
pkg_free(ifc.ifc_req); /*clean up*/
close(s);
return ret;
error:
if (ifc.ifc_req) pkg_free(ifc.ifc_req);
close(s);
return -1;
}
