#include "includes.h"
+#include <assert.h> /* added by philipp */
+
extern int DEBUGLEVEL;
struct in_addr ipzero;
struct in_addr wins_ip;
-static struct in_addr default_ip;
-static struct in_addr default_bcast;
-static struct in_addr default_nmask;
-static BOOL got_ip=False;
-static BOOL got_bcast=False;
-static BOOL got_nmask=False;
struct interface *local_interfaces = NULL;
+struct interface *present_interfaces = NULL;
struct interface *last_iface;
-/****************************************************************************
-calculate the default netmask for an address
-****************************************************************************/
-static void default_netmask(struct in_addr *inm, struct in_addr *iad)
-{
- uint32 ad = ntohl(iad->s_addr);
- uint32 nm;
- /*
- ** Guess a netmask based on the class of the IP address given.
- */
- if ( (ad & 0x80000000) == 0 ) {
- /* class A address */
- nm = 0xFF000000;
- } else if ( (ad & 0xC0000000) == 0x80000000 ) {
- /* class B address */
- nm = 0xFFFF0000;
- } else if ( (ad & 0xE0000000) == 0xC0000000 ) {
- /* class C address */
- nm = 0xFFFFFF00;
- } else {
- /* class D or E; netmask doesn't make much sense - guess 4 bits */
- nm = 0xFFFFFFF0;
- }
- inm->s_addr = htonl(nm);
-}
-
-
-/****************************************************************************
- get the broadcast address for our address
-(troyer@saifr00.ateng.az.honeywell.com)
-****************************************************************************/
-static void get_broadcast(struct in_addr *if_ipaddr,
- struct in_addr *if_bcast,
- struct in_addr *if_nmask)
+static void get_interfaces()
{
- BOOL found = False;
-#ifndef NO_GET_BROADCAST
int sock = -1; /* AF_INET raw socket desc */
char buff[1024];
- struct ifreq *ifr=NULL;
+ struct ifreq *ifr=NULL, ifr2;
int i;
+ struct interface *iface, *last_iface = NULL;
+
+#ifndef ifr_mtu
+#define ifr_mtu ifr_metric
+#endif
#if defined(EVEREST)
int n_interfaces;
struct ifconf *ifc;
#else
struct ifconf ifc;
-#endif
#endif
- /* get a default netmask and broadcast */
- default_netmask(if_nmask, if_ipaddr);
+ if (present_interfaces) return; /* already initialized */
-#ifndef NO_GET_BROADCAST
/* Create a socket to the INET kernel. */
#if USE_SOCKRAW
if ((sock = socket(AF_INET, SOCK_RAW, PF_INET )) < 0)
ifr = ifc.ifc_req;
for (i = 0; i < n_interfaces; ++i) {
- if (if_ipaddr->s_addr ==
- ((struct sockaddr_in *) &ifr[i].ifr_addr)->sin_addr.s_addr) {
- found = True;
- break;
- }
+ ifr2 = ifr[i];
+ if (ioctl(sock, SIOCGIFFLAGS, &ifr2) < 0)
+ DEBUG(0,("SIOCGIFFLAGS failed\n"));
+
+ if ((ifr2.ifr_flags & (IFF_RUNNING | IFF_LOOPBACK)) != IFF_RUNNING)
+ continue;
+
+ iface = (struct interface *)malloc(sizeof(*iface));
+ assert(iface != NULL);
+ iface->next = NULL;
+ iface->ip = ((struct sockaddr_in *) &ifr[i].ifr_addr)->sin_addr;
+ iface->name = strdup(ifr[i].ifr_name);
+ iface->flags = ifr2.ifr_flags;
+
+ /* complete with netmask and b'cast address */
+ ifr2 = *ifr;
+ if (ioctl(sock, SIOCGIFNETMASK, &ifr2) < 0)
+ DEBUG(0,("SIOCGIFNETMASK failed\n"));
+ else
+ iface->nmask = ((struct sockaddr_in *)&ifr2.ifr_addr)->sin_addr;
+ if (ioctl(sock, SIOCGIFBRDADDR, &ifr2) < 0)
+ DEBUG(0,("SIOCGIFBRDADDR failed\n"));
+ else
+ iface->bcast = ((struct sockaddr_in *)&ifr2.ifr_addr)->sin_addr;
+ if (ioctl(sock, SIOCGIFMTU, &ifr2) < 0)
+ DEBUG(0,("SIOCGIFMTU failed\n"));
+ else
+ iface->mtu = ifr2.ifr_mtu;
+
+ DEBUG(4,("Netmask for %s = %s\n", iface->name, inet_ntoa(iface->nmask)));
+
+ if (!present_interfaces)
+ present_interfaces = iface;
+ else
+ last_iface->next = iface;
+ last_iface = iface;
}
}
}
/* Loop through interfaces, looking for given IP address */
for (i = ifc->ifc_len / sizeof(struct ifreq); --i >= 0; ifr++) {
- if (if_ipaddr->s_addr ==
- (*(struct sockaddr_in *) &ifr->ifr_addr).sin_addr.s_addr) {
- found = True;
- break;
+ ifr2 = *ifr;
+ if (ioctl(sock, SIOCGIFFLAGS, &ifr2) < 0)
+ DEBUG(0,("SIOCGIFFLAGS failed\n"));
+
+ if ((ifr2.ifr_flags & (IFF_RUNNING | IFF_LOOPBACK)) == IFF_RUNNING) {
+
+ iface = (struct interface *)malloc(sizeof(*iface));
+ assert(iface != NULL);
+ iface->next = NULL;
+ iface->ip = (*(struct sockaddr_in *) &ifr->ifr_addr).sin_addr;
+ iface->name = strdup(ifr->ifr_name);
+ iface->flags = ifr2.ifr_flags;
+
+ /* complete with netmask and b'cast address */
+ ifr2 = *ifr;
+ strioctl.ic_cmd = SIOCGIFNETMASK;
+ strioctl.ic_dp = (char *)&ifr2;
+ strioctl.ic_len = sizeof(struct ifr2);
+ if (ioctl(sock, I_STR, &strioctl) < 0)
+ DEBUG(0,("Failed I_STR/SIOCGIFNETMASK: %s\n", strerror(errno)));
+ else
+ iface->nmask = ((struct sockaddr_in *)&ifr2.ifr_addr)->sin_addr;
+ strioctl.ic_cmd = SIOCGIFBRDADDR;
+ if (ioctl(sock, I_STR, &strioctl) < 0)
+ DEBUG(0,("SIOCGIFBRDADDR failed\n"));
+ else
+ iface->bcast = ((struct sockaddr_in *)&ifr2.ifr_addr)->sin_addr;
+ strioctl.ic_cmd = SIOCGIFMTU;
+ if (ioctl(sock, I_STR, &strioctl) < 0)
+ DEBUG(0,("SIOCGIFMTU failed\n"));
+ else
+ iface->mtu = ifr2.ifr_mtu;
+
+ DEBUG(4,("Netmask for %s = %s\n", iface->name, inet_ntoa(iface->nmask)));
+
+ if (!present_interfaces)
+ present_interfaces = iface;
+ else
+ last_iface->next = iface;
+ last_iface = iface;
}
}
}
/* Loop through interfaces, looking for given IP address */
i = ifc.ifc_len;
while (i > 0) {
- if (if_ipaddr->s_addr ==
- (*(struct sockaddr_in *) &ifr->ifr_addr).sin_addr.s_addr) {
- found = True;
- break;
+ ifr2 = *ifr;
+ if (ioctl(sock, SIOCGIFFLAGS, &ifr2) < 0)
+ DEBUG(0,("SIOCGIFFLAGS failed\n"));
+
+ if ((ifr2.ifr_flags & (IFF_RUNNING | IFF_LOOPBACK)) == IFF_RUNNING) {
+ iface = (struct interface *)malloc(sizeof(*iface));
+ assert(iface != NULL);
+ iface->next = NULL;
+ iface->ip = (*(struct sockaddr_in *) &ifr->ifr_addr).sin_addr;
+ iface->name = strdup(ifr->ifr_name);
+ iface->flags = ifr2.ifr_flags;
+
+ /* complete with netmask and b'cast address */
+ ifr2 = *ifr;
+ if (ioctl(sock, SIOCGIFNETMASK, &ifr2) < 0)
+ DEBUG(0,("SIOCGIFNETMASK failed\n"));
+ else
+ iface->nmask = (*(struct sockaddr_in *)&ifr2.ifr_addr).sin_addr;
+ if (ioctl(sock, SIOCGIFBRDADDR, &ifr2) < 0)
+ DEBUG(0,("SIOCGIFBRDADDR failed\n"));
+ else
+ iface->bcast = (*(struct sockaddr_in *)&ifr2.ifr_addr).sin_addr;
+ if (ioctl(sock, SIOCGIFMTU, &ifr2) < 0)
+ DEBUG(0,("SIOCGIFMTU failed\n"));
+ else
+ iface->mtu = ifr2.ifr_mtu;
+
+ DEBUG(4,("Netmask for %s = %s\n", iface->name, inet_ntoa(iface->nmask)));
+
+ if (!present_interfaces)
+ present_interfaces = iface;
+ else
+ last_iface->next = iface;
+ last_iface = iface;
}
+
i -= ifr->ifr_addr.sa_len + IFNAMSIZ;
ifr = (struct ifreq*) ((char*) ifr + ifr->ifr_addr.sa_len + IFNAMSIZ);
}
/* Loop through interfaces, looking for given IP address */
for (i = ifc.ifc_len / sizeof(struct ifreq); --i >= 0; ifr++) {
+ ifr2 = *ifr;
+ if (ioctl(sock, SIOCGIFFLAGS, &ifr2) < 0)
+ DEBUG(0,("SIOCGIFFLAGS failed\n"));
+
+ if ((ifr2.ifr_flags & (IFF_RUNNING | IFF_LOOPBACK)) == IFF_RUNNING) {
#ifdef BSDI
- if (ioctl(sock, SIOCGIFADDR, ifr) < 0) break;
+ if (ioctl(sock, SIOCGIFADDR, ifr) < 0) break;
#endif
- if (if_ipaddr->s_addr ==
- (*(struct sockaddr_in *) &ifr->ifr_addr).sin_addr.s_addr) {
- found = True;
- break;
+
+ iface = (struct interface *)malloc(sizeof(*iface));
+ assert(iface != NULL);
+ iface->next = NULL;
+ iface->ip = (*(struct sockaddr_in *) &ifr->ifr_addr).sin_addr;
+ iface->name = strdup(ifr->ifr_name);
+ iface->flags = ifr2.ifr_flags;
+
+ /* complete with netmask and b'cast address */
+ ifr2 = *ifr;
+ if (ioctl(sock, SIOCGIFNETMASK, &ifr2) < 0)
+ DEBUG(0,("SIOCGIFNETMASK failed\n"));
+ else
+ iface->nmask = (*(struct sockaddr_in *)&ifr2.ifr_addr).sin_addr;
+ if (ioctl(sock, SIOCGIFBRDADDR, &ifr2) < 0)
+ DEBUG(0,("SIOCGIFBRDADDR failed\n"));
+ else
+ iface->bcast = (*(struct sockaddr_in *)&ifr2.ifr_addr).sin_addr;
+ if (ioctl(sock, SIOCGIFMTU, &ifr2) < 0)
+ DEBUG(0,("SIOCGIFMTU failed\n"));
+ else
+ iface->mtu = ifr2.ifr_mtu;
+
+ DEBUG(4,("Netmask for %s = %s\n", iface->name, inet_ntoa(iface->nmask)));
+
+ if (!present_interfaces)
+ present_interfaces = iface;
+ else
+ last_iface->next = iface;
+ last_iface = iface;
}
}
}
#endif
-
- if (!found) {
- DEBUG(0,("No interface found for address %s\n", inet_ntoa(*if_ipaddr)));
- } else {
- /* Get the netmask address from the kernel */
-#ifdef USE_IFREQ
- ifreq = *ifr;
-
- strioctl.ic_cmd = SIOCGIFNETMASK;
- strioctl.ic_dp = (char *)&ifreq;
- strioctl.ic_len = sizeof(struct ifreq);
- if (ioctl(sock, I_STR, &strioctl) < 0)
- DEBUG(0,("Failed I_STR/SIOCGIFNETMASK: %s\n", strerror(errno)));
- else
- *if_nmask = ((struct sockaddr_in *)&ifreq.ifr_addr)->sin_addr;
-#else
- if (ioctl(sock, SIOCGIFNETMASK, ifr) < 0)
- DEBUG(0,("SIOCGIFNETMASK failed\n"));
- else
- *if_nmask = ((struct sockaddr_in *)&ifr->ifr_addr)->sin_addr;
-#endif
-
- DEBUG(4,("Netmask for %s = %s\n", ifr->ifr_name,
- inet_ntoa(*if_nmask)));
- }
/* Close up shop */
(void) close(sock);
-
-#endif
-
- /* sanity check on the netmask */
- {
- uint32 nm = ntohl(if_nmask->s_addr);
- if ((nm >> 24) != 0xFF) {
- DEBUG(0,("Impossible netmask %s - using defaults\n",inet_ntoa(*if_nmask)));
- default_netmask(if_nmask, if_ipaddr);
- }
- }
-
- /* derive the broadcast assuming a 1's broadcast, as this is what
- all MS operating systems do, we have to comply even if the unix
- box is setup differently */
- {
- uint32 ad = ntohl(if_ipaddr->s_addr);
- uint32 nm = ntohl(if_nmask->s_addr);
- uint32 bc = (ad & nm) | (0xffffffff & ~nm);
- if_bcast->s_addr = htonl(bc);
- }
-
- DEBUG(4,("Derived broadcast address %s\n", inet_ntoa(*if_bcast)));
-} /* get_broadcast */
+} /* get_interfaces */
/****************************************************************************
{
char *ptr = s;
fstring token;
- struct interface *iface;
- struct in_addr ip;
+ struct interface *iface, *i;
+ BOOL seenALL = False;
ipzero = *interpret_addr2("0.0.0.0");
wins_ip = *interpret_addr2("255.255.255.255");
+ get_interfaces();
+
while (next_token(&ptr,token,NULL)) {
- /* parse it into an IP address/netmasklength pair */
- char *p = strchr(token,'/');
- if (p) *p = 0;
- ip = *interpret_addr2(token);
+ if (strcasecmp(token, "ALL")) {
+ if (*interfaces) {
+ DEBUG(0, ("Error: interface name \"ALL\" must occur alone\n"));
+ /* should do something here ... */
+ }
- /* maybe we already have it listed */
- {
- struct interface *i;
- for (i=(*interfaces);i;i=i->next)
- if (ip_equal(ip,i->ip)) break;
- if (i) continue;
+ /* should we copy the list, or just point at it? */
+ for (i = present_interfaces; i; i = i->next) {
+ iface = (struct interface *)malloc(sizeof(*iface));
+ if (!iface) return;
+
+ *iface = *i;
+ iface->next = NULL;
+
+ if (!(*interfaces))
+ (*interfaces) = iface;
+ else
+ last_iface->next = iface;
+ last_iface = iface;
+ }
+
+ seenALL = True;
+ continue;
+ } else if (seenALL) {
+ DEBUG(0, ("Error: can't mix interface \"ALL\" with other interface namess\n"));
+ continue;
}
+ /* maybe we already have it listed */
+ for (i=(*interfaces);i;i=i->next)
+ if (strcasecmp(token,i->name)) break;
+ if (i) continue;
+
iface = (struct interface *)malloc(sizeof(*iface));
if (!iface) return;
- iface->ip = ip;
+ /* make sure name is known */
+ for (i=present_interfaces;i;i=i->next)
+ if (strcasecmp(token,i->name)) break;
- if (p) {
- if (strlen(p+1)>2)
- iface->nmask = *interpret_addr2(p+1);
- else
- iface->nmask.s_addr = htonl(~((1<<(32-atoi(p+1)))-1));
- } else {
- default_netmask(&iface->nmask,&iface->ip);
+ if (!i) {
+ DEBUG(0, ("Warning: unknown interface \"%s\" specified\n", token));
+ continue;
}
- iface->bcast.s_addr = iface->ip.s_addr | ~iface->nmask.s_addr;
+
+ *iface = *i;
iface->next = NULL;
+ if (iface->bcast.s_addr != (iface->ip.s_addr | ~iface->nmask.s_addr)) {
+ DEBUG(0, ("Warning: overriding b'cast address %s on interface %s\n",
+ inet_ntoa(iface->bcast), iface->name));
+ iface->bcast.s_addr = iface->ip.s_addr | ~iface->nmask.s_addr;
+ }
if (!(*interfaces)) {
(*interfaces) = iface;
DEBUG(1,("nmask=%s\n",inet_ntoa(iface->nmask)));
}
- if (*interfaces) return;
-
- /* setup a default interface */
- iface = (struct interface *)malloc(sizeof(*iface));
- if (!iface) return;
-
- iface->next = NULL;
-
- if (got_ip) {
- iface->ip = default_ip;
- } else {
- get_myname(NULL,&iface->ip);
- }
-
- if (got_bcast) {
- iface->bcast = default_bcast;
- } else {
- get_broadcast(&iface->ip,&iface->bcast,&iface->nmask);
- }
-
- if (got_nmask) {
- iface->nmask = default_nmask;
- iface->bcast.s_addr = iface->ip.s_addr | ~iface->nmask.s_addr;
- }
-
- if (iface->bcast.s_addr != (iface->ip.s_addr | ~iface->nmask.s_addr)) {
- DEBUG(2,("Warning: inconsistant interface %s\n",inet_ntoa(iface->ip)));
- }
-
- iface->next = NULL;
- (*interfaces) = last_iface = iface;
-
- DEBUG(1,("Added interface ip=%s ",inet_ntoa(iface->ip)));
- DEBUG(1,("bcast=%s ",inet_ntoa(iface->bcast)));
- DEBUG(1,("nmask=%s\n",inet_ntoa(iface->nmask)));
+ if (! *interfaces)
+ DEBUG(0,("Error: no interfaces specified.\n"));
}
**************************************************************************/
void iface_set_default(char *ip,char *bcast,char *nmask)
{
- if (ip) {
- got_ip = True;
- default_ip = *interpret_addr2(ip);
- }
-
- if (bcast) {
- got_bcast = True;
- default_bcast = *interpret_addr2(bcast);
- }
-
- if (nmask) {
- got_nmask = True;
- default_nmask = *interpret_addr2(nmask);
- }
+ DEBUG(0, ("iface_set_default: function deprecated.\n"));
+ exit(1);
}
return(&iface_find(ip)->ip);
}
-
-
git.samba.org / samba.git / commitdiff