*/
#include "includes.h"
+#include "nmbd/nmbd.h"
extern int global_nmb_port;
struct in_addr mask_ip)
{
struct subnet_record *subrec = NULL;
- int nmb_sock, dgram_sock;
+ int nmb_sock = -1;
+ int dgram_sock = -1;
+ int nmb_bcast = -1;
+ int dgram_bcast = -1;
+ bool bind_bcast = lp_nmbd_bind_explicit_broadcast();
/* Check if we are creating a non broadcast subnet - if so don't create
sockets. */
- if(type != NORMAL_SUBNET) {
- nmb_sock = -1;
- dgram_sock = -1;
- } else {
+ if (type == NORMAL_SUBNET) {
+ struct sockaddr_storage ss;
+ struct sockaddr_storage ss_bcast;
+
+ in_addr_to_sockaddr_storage(&ss, myip);
+ in_addr_to_sockaddr_storage(&ss_bcast, bcast_ip);
+
/*
* Attempt to open the sockets on port 137/138 for this interface
* and bind them.
* Fail the subnet creation if this fails.
*/
- if((nmb_sock = open_socket_in(SOCK_DGRAM, global_nmb_port,0, myip.s_addr,True)) == -1) {
- if( DEBUGLVL( 0 ) ) {
- Debug1( "nmbd_subnetdb:make_subnet()\n" );
- Debug1( " Failed to open nmb socket on interface %s ", inet_ntoa(myip) );
- Debug1( "for port %d. ", global_nmb_port );
- Debug1( "Error was %s\n", strerror(errno) );
+ nmb_sock = open_socket_in(SOCK_DGRAM, global_nmb_port,
+ 0, &ss, true);
+ if (nmb_sock == -1) {
+ DEBUG(0, ("nmbd_subnetdb:make_subnet()\n"));
+ DEBUGADD(0,(" Failed to open nmb socket on interface %s ",
+ inet_ntoa(myip)));
+ DEBUGADD(0,("for port %d. ", global_nmb_port));
+ DEBUGADD(0,("Error was %s\n", strerror(errno)));
+ goto failed;
+ }
+ set_socket_options(nmb_sock,"SO_BROADCAST");
+ set_blocking(nmb_sock, false);
+
+ if (bind_bcast) {
+ nmb_bcast = open_socket_in(SOCK_DGRAM, global_nmb_port,
+ 0, &ss_bcast, true);
+ if (nmb_bcast == -1) {
+ DEBUG(0, ("nmbd_subnetdb:make_subnet()\n"));
+ DEBUGADD(0,(" Failed to open nmb bcast socket on interface %s ",
+ inet_ntoa(bcast_ip)));
+ DEBUGADD(0,("for port %d. ", global_nmb_port));
+ DEBUGADD(0,("Error was %s\n", strerror(errno)));
+ goto failed;
}
- return NULL;
+ set_socket_options(nmb_bcast, "SO_BROADCAST");
+ set_blocking(nmb_bcast, false);
}
- if((dgram_sock = open_socket_in(SOCK_DGRAM,DGRAM_PORT,3, myip.s_addr,True)) == -1) {
- if( DEBUGLVL( 0 ) ) {
- Debug1( "nmbd_subnetdb:make_subnet()\n" );
- Debug1( " Failed to open dgram socket on interface %s ", inet_ntoa(myip) );
- Debug1( "for port %d. ", DGRAM_PORT );
- Debug1( "Error was %s\n", strerror(errno) );
+ dgram_sock = open_socket_in(SOCK_DGRAM, DGRAM_PORT,
+ 3, &ss, true);
+ if (dgram_sock == -1) {
+ DEBUG(0, ("nmbd_subnetdb:make_subnet()\n"));
+ DEBUGADD(0,(" Failed to open dgram socket on interface %s ",
+ inet_ntoa(myip)));
+ DEBUGADD(0,("for port %d. ", DGRAM_PORT));
+ DEBUGADD(0,("Error was %s\n", strerror(errno)));
+ goto failed;
+ }
+ set_socket_options(dgram_sock, "SO_BROADCAST");
+ set_blocking(dgram_sock, false);
+
+ if (bind_bcast) {
+ dgram_bcast = open_socket_in(SOCK_DGRAM, DGRAM_PORT,
+ 3, &ss_bcast, true);
+ if (dgram_bcast == -1) {
+ DEBUG(0, ("nmbd_subnetdb:make_subnet()\n"));
+ DEBUGADD(0,(" Failed to open dgram bcast socket on interface %s ",
+ inet_ntoa(bcast_ip)));
+ DEBUGADD(0,("for port %d. ", DGRAM_PORT));
+ DEBUGADD(0,("Error was %s\n", strerror(errno)));
+ goto failed;
}
- return NULL;
+ set_socket_options(dgram_bcast, "SO_BROADCAST");
+ set_blocking(dgram_bcast, false);
}
-
- /* Make sure we can broadcast from these sockets. */
- set_socket_options(nmb_sock,"SO_BROADCAST");
- set_socket_options(dgram_sock,"SO_BROADCAST");
-
- /* Set them non-blocking. */
- set_blocking(nmb_sock, False);
- set_blocking(dgram_sock, False);
}
subrec = SMB_MALLOC_P(struct subnet_record);
if (!subrec) {
DEBUG(0,("make_subnet: malloc fail !\n"));
- if (nmb_sock != -1) {
- close(nmb_sock);
- }
- if (dgram_sock != -1) {
- close(dgram_sock);
- }
- return(NULL);
+ goto failed;
}
ZERO_STRUCTP(subrec);
if((subrec->subnet_name = SMB_STRDUP(name)) == NULL) {
DEBUG(0,("make_subnet: malloc fail for subnet name !\n"));
- if (nmb_sock != -1) {
- close(nmb_sock);
- }
- if (dgram_sock != -1) {
- close(dgram_sock);
- }
- ZERO_STRUCTP(subrec);
- SAFE_FREE(subrec);
- return(NULL);
+ goto failed;
}
DEBUG(2, ("making subnet name:%s ", name ));
subrec->myip = myip;
subrec->type = type;
subrec->nmb_sock = nmb_sock;
+ subrec->nmb_bcast = nmb_bcast;
subrec->dgram_sock = dgram_sock;
-
+ subrec->dgram_bcast = dgram_bcast;
+
return subrec;
+
+failed:
+ SAFE_FREE(subrec);
+ if (nmb_sock != -1) {
+ close(nmb_sock);
+ }
+ if (nmb_bcast != -1) {
+ close(nmb_bcast);
+ }
+ if (dgram_sock != -1) {
+ close(dgram_sock);
+ }
+ if (dgram_bcast != -1) {
+ close(dgram_bcast);
+ }
+ return NULL;
}
/****************************************************************************
Create subnet entries.
**************************************************************************/
-BOOL create_subnets(void)
+bool create_subnets(void)
{
/* We only count IPv4 interfaces whilst we're waiting. */
- int num_interfaces = iface_count_v4();
+ int num_interfaces;
int i;
struct in_addr unicast_ip, ipzero;
- if(num_interfaces == 0) {
- void (*saved_handler)(int);
+ try_interfaces_again:
- DEBUG(0,("create_subnets: No local interfaces !\n"));
+ /* Only count IPv4, non-loopback interfaces. */
+ if (iface_count_v4_nl() == 0) {
+ DEBUG(0,("create_subnets: No local IPv4 non-loopback interfaces !\n"));
DEBUG(0,("create_subnets: Waiting for an interface to appear ...\n"));
+ }
+
+ /* We only count IPv4, non-loopback interfaces here. */
+ while (iface_count_v4_nl() == 0) {
+ void (*saved_handler)(int);
/*
* Whilst we're waiting for an interface, allow SIGTERM to
* cause us to exit.
*/
- saved_handler = CatchSignal( SIGTERM, SIGNAL_CAST SIG_DFL );
+ saved_handler = CatchSignal(SIGTERM, SIG_DFL);
- /* We only count IPv4 interfaces here. */
- while (iface_count_v4() == 0) {
- sleep(5);
- load_interfaces();
- }
+ sleep(5);
+ load_interfaces();
/*
* We got an interface, restore our normal term handler.
*/
- CatchSignal( SIGTERM, SIGNAL_CAST saved_handler );
+ CatchSignal(SIGTERM, saved_handler);
}
/*
* ignore it here. JRA.
*/
- if (is_loopback_addr(&iface->ip)) {
+ if (is_loopback_addr((const struct sockaddr *)&iface->ip)) {
DEBUG(2,("create_subnets: Ignoring loopback interface.\n" ));
continue;
}
/* We must have at least one subnet. */
if (subnetlist == NULL) {
- DEBUG(0,("create_subnets: unable to create any subnet from "
- "given interfaces. nmbd is terminating\n"));
- return False;
+ void (*saved_handler)(int);
+
+ DEBUG(0,("create_subnets: Unable to create any subnet from "
+ "given interfaces. Is your interface line in "
+ "smb.conf correct ?\n"));
+
+ saved_handler = CatchSignal(SIGTERM, SIG_DFL);
+
+ sleep(5);
+ load_interfaces();
+
+ CatchSignal(SIGTERM, saved_handler);
+ goto try_interfaces_again;
}
if (lp_we_are_a_wins_server()) {
- /* Pick the first interface IPv4 address as the WINS server ip. */
+ /* Pick the first interface IPv4 address as the WINS server
+ * ip. */
const struct in_addr *nip = first_ipv4_iface();
if (!nip) {
Function to tell us if we can use the unicast subnet.
******************************************************************/
-BOOL we_are_a_wins_client(void)
+bool we_are_a_wins_client(void)
{
if (wins_srv_count() > 0) {
return True;
git.samba.org / samba.git / blobdiff