static int _php_mcast_join_leave(
php_socket *sock,
int level,
struct sockaddr *group, /* struct sockaddr_in/sockaddr_in6 */
socklen_t group_len,
unsigned int if_index,
int join TSRMLS_DC)
{
#ifdef RFC3678_API
struct group_req greq = {0};
memcpy(&greq.gr_group, group, group_len);
assert(greq.gr_group.ss_family != 0); /* the caller has set this */
greq.gr_interface = if_index;
return setsockopt(sock->bsd_socket, level,
join ? MCAST_JOIN_GROUP : MCAST_LEAVE_GROUP, (char*)&greq,
sizeof(greq));
#else
if (sock->type == AF_INET) {
struct ip_mreq mreq = {0};
struct in_addr addr;
assert(group_len == sizeof(struct sockaddr_in));
if (if_index != 0) {
if (php_if_index_to_addr4(if_index, sock, &addr TSRMLS_CC) ==
FAILURE)
return -2; /* failure, but notice already emitted */
mreq.imr_interface = addr;
} else {
mreq.imr_interface.s_addr = htonl(INADDR_ANY);
}
mreq.imr_multiaddr = ((struct sockaddr_in*)group)->sin_addr;
return setsockopt(sock->bsd_socket, level,
join ? IP_ADD_MEMBERSHIP : IP_DROP_MEMBERSHIP, (char*)&mreq,
sizeof(mreq));
}
#if HAVE_IPV6
else if (sock->type == AF_INET6) {
struct ipv6_mreq mreq = {0};
assert(group_len == sizeof(struct sockaddr_in6));
mreq.ipv6mr_multiaddr = ((struct sockaddr_in6*)group)->sin6_addr;
mreq.ipv6mr_interface = if_index;
return setsockopt(sock->bsd_socket, level,
join ? IPV6_JOIN_GROUP : IPV6_LEAVE_GROUP, (char*)&mreq,
sizeof(mreq));
}
#endif
else {
php_error_docref(NULL TSRMLS_CC, E_WARNING,
"Option %s is inapplicable to this socket type",
join ? "MCAST_JOIN_GROUP" : "MCAST_LEAVE_GROUP");
return -2;
}
#endif
}
static int _php_mcast_source_op(
php_socket *sock,
int level,
struct sockaddr *group,
socklen_t group_len,
struct sockaddr *source,
socklen_t source_len,
unsigned int if_index,
enum source_op sop TSRMLS_DC)
{
#ifdef RFC3678_API
struct group_source_req gsreq = {0};
memcpy(&gsreq.gsr_group, group, group_len);
assert(gsreq.gsr_group.ss_family != 0);
memcpy(&gsreq.gsr_source, source, source_len);
assert(gsreq.gsr_source.ss_family != 0);
gsreq.gsr_interface = if_index;
return setsockopt(sock->bsd_socket, level,
_php_source_op_to_rfc3678_op(sop), (char*)&gsreq, sizeof(gsreq));
#else
if (sock->type == AF_INET) {
struct ip_mreq_source mreqs = {0};
struct in_addr addr;
mreqs.imr_multiaddr = ((struct sockaddr_in*)group)->sin_addr;
mreqs.imr_sourceaddr = ((struct sockaddr_in*)source)->sin_addr;
assert(group_len == sizeof(struct sockaddr_in));
assert(source_len == sizeof(struct sockaddr_in));
if (if_index != 0) {
if (php_if_index_to_addr4(if_index, sock, &addr TSRMLS_CC) ==
FAILURE)
return -2; /* failure, but notice already emitted */
mreqs.imr_interface = addr;
} else {
mreqs.imr_interface.s_addr = htonl(INADDR_ANY);
}
return setsockopt(sock->bsd_socket, level,
_php_source_op_to_ipv4_op(sop), (char*)&mreqs, sizeof(mreqs));
}
#if HAVE_IPV6
else if (sock->type == AF_INET6) {
php_error_docref(NULL TSRMLS_CC, E_WARNING,
"This platform does not support %s for IPv6 sockets",
_php_source_op_to_string(sop));
return -2;
}
#endif
else {
php_error_docref(NULL TSRMLS_CC, E_WARNING,
"Option %s is inapplicable to this socket type",
_php_source_op_to_string(sop));
return -2;
}
#endif
}
int php_do_setsockopt_ip_mcast(php_socket *php_sock,
int level,
int optname,
zval *arg4)
{
unsigned int if_index;
struct in_addr if_addr;
void *opt_ptr;
socklen_t optlen;
unsigned char ipv4_mcast_ttl_lback;
int retval;
switch (optname) {
case PHP_MCAST_JOIN_GROUP:
case PHP_MCAST_LEAVE_GROUP:
#ifdef HAS_MCAST_EXT
case PHP_MCAST_BLOCK_SOURCE:
case PHP_MCAST_UNBLOCK_SOURCE:
case PHP_MCAST_JOIN_SOURCE_GROUP:
case PHP_MCAST_LEAVE_SOURCE_GROUP:
#endif
if (php_do_mcast_opt(php_sock, level, optname, arg4) == FAILURE) {
return FAILURE;
} else {
return SUCCESS;
}
case IP_MULTICAST_IF:
if (php_get_if_index_from_zval(arg4, &if_index) == FAILURE) {
return FAILURE;
}
if (php_if_index_to_addr4(if_index, php_sock, &if_addr) == FAILURE) {
return FAILURE;
}
opt_ptr = &if_addr;
optlen = sizeof(if_addr);
goto dosockopt;
case IP_MULTICAST_LOOP:
convert_to_boolean_ex(arg4);
ipv4_mcast_ttl_lback = (unsigned char) (Z_TYPE_P(arg4) == IS_TRUE);
goto ipv4_loop_ttl;
case IP_MULTICAST_TTL:
convert_to_long_ex(arg4);
if (Z_LVAL_P(arg4) < 0L || Z_LVAL_P(arg4) > 255L) {
php_error_docref(NULL, E_WARNING,
"Expected a value between 0 and 255");
return FAILURE;
}
ipv4_mcast_ttl_lback = (unsigned char) Z_LVAL_P(arg4);
ipv4_loop_ttl:
opt_ptr = &ipv4_mcast_ttl_lback;
optlen = sizeof(ipv4_mcast_ttl_lback);
goto dosockopt;
}
return 1;
dosockopt:
retval = setsockopt(php_sock->bsd_socket, level, optname, opt_ptr, optlen);
if (retval != 0) {
PHP_SOCKET_ERROR(php_sock, "unable to set socket option", errno);
return FAILURE;
}
return SUCCESS;
}
