summaryrefslogtreecommitdiff
path: root/source4/lib/netif
diff options
context:
space:
mode:
Diffstat (limited to 'source4/lib/netif')
-rw-r--r--source4/lib/netif/interface.c355
-rw-r--r--source4/lib/netif/netif.c400
-rw-r--r--source4/lib/netif/netif.h34
3 files changed, 789 insertions, 0 deletions
diff --git a/source4/lib/netif/interface.c b/source4/lib/netif/interface.c
new file mode 100644
index 0000000000..75fdf8c976
--- /dev/null
+++ b/source4/lib/netif/interface.c
@@ -0,0 +1,355 @@
+/*
+ Unix SMB/CIFS implementation.
+ multiple interface handling
+ Copyright (C) Andrew Tridgell 1992-1998
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "includes.h"
+#include "system/network.h"
+#include "lib/netif/netif.h"
+
+static struct iface_struct *probed_ifaces;
+static int total_probed;
+
+static struct ipv4_addr allones_ip;
+struct ipv4_addr loopback_ip;
+
+/* used for network interfaces */
+struct interface {
+ struct interface *next, *prev;
+ struct ipv4_addr ip;
+ struct ipv4_addr bcast;
+ struct ipv4_addr nmask;
+};
+
+static struct interface *local_interfaces;
+
+#define ALLONES ((uint32_t)0xFFFFFFFF)
+#define MKBCADDR(_IP, _NM) ((_IP & _NM) | (_NM ^ ALLONES))
+#define MKNETADDR(_IP, _NM) (_IP & _NM)
+
+static struct ipv4_addr tov4(struct in_addr in)
+{
+ struct ipv4_addr in2;
+ in2.s_addr = in.s_addr;
+ return in2;
+}
+
+/****************************************************************************
+Try and find an interface that matches an ip. If we cannot, return NULL
+ **************************************************************************/
+static struct interface *iface_find(struct in_addr ip, BOOL CheckMask)
+{
+ struct interface *i;
+ if (is_zero_ip(tov4(ip))) return local_interfaces;
+
+ for (i=local_interfaces;i;i=i->next)
+ if (CheckMask) {
+ if (same_net(i->ip,tov4(ip),i->nmask)) return i;
+ } else if ((i->ip).s_addr == ip.s_addr) return i;
+
+ return NULL;
+}
+
+
+/****************************************************************************
+add an interface to the linked list of interfaces
+****************************************************************************/
+static void add_interface(struct in_addr ip, struct in_addr nmask)
+{
+ struct interface *iface;
+ if (iface_find(ip, False)) {
+ DEBUG(3,("not adding duplicate interface %s\n",inet_ntoa(ip)));
+ return;
+ }
+
+ if (ip_equal(nmask, allones_ip)) {
+ DEBUG(3,("not adding non-broadcast interface %s\n",inet_ntoa(ip)));
+ return;
+ }
+
+ iface = (struct interface *)malloc(sizeof(*iface));
+ if (!iface) return;
+
+ ZERO_STRUCTPN(iface);
+
+ iface->ip = tov4(ip);
+ iface->nmask = tov4(nmask);
+ iface->bcast.s_addr = MKBCADDR(iface->ip.s_addr, iface->nmask.s_addr);
+
+ DLIST_ADD(local_interfaces, iface);
+
+ DEBUG(2,("added interface ip=%s ",sys_inet_ntoa(iface->ip)));
+ DEBUG(2,("bcast=%s ",sys_inet_ntoa(iface->bcast)));
+ DEBUG(2,("nmask=%s\n",sys_inet_ntoa(iface->nmask)));
+}
+
+
+
+/****************************************************************************
+interpret a single element from a interfaces= config line
+
+This handles the following different forms:
+
+1) wildcard interface name
+2) DNS name
+3) IP/masklen
+4) ip/mask
+5) bcast/mask
+****************************************************************************/
+static void interpret_interface(TALLOC_CTX *mem_ctx, const char *token)
+{
+ struct in_addr ip, nmask;
+ char *p;
+ int i, added=0;
+
+ ip.s_addr = 0;
+ nmask.s_addr = 0;
+
+ /* first check if it is an interface name */
+ for (i=0;i<total_probed;i++) {
+ if (gen_fnmatch(token, probed_ifaces[i].name) == 0) {
+ add_interface(probed_ifaces[i].ip,
+ probed_ifaces[i].netmask);
+ added = 1;
+ }
+ }
+ if (added) return;
+
+ /* maybe it is a DNS name */
+ p = strchr_m(token,'/');
+ if (!p) {
+ ip.s_addr = interpret_addr2(token).s_addr;
+ for (i=0;i<total_probed;i++) {
+ if (ip.s_addr == probed_ifaces[i].ip.s_addr &&
+ !ip_equal(allones_ip, probed_ifaces[i].netmask)) {
+ add_interface(probed_ifaces[i].ip,
+ probed_ifaces[i].netmask);
+ return;
+ }
+ }
+ DEBUG(2,("can't determine netmask for %s\n", token));
+ return;
+ }
+
+ /* parse it into an IP address/netmasklength pair */
+ *p++ = 0;
+
+ ip.s_addr = interpret_addr2(token).s_addr;
+
+ if (strlen(p) > 2) {
+ nmask.s_addr = interpret_addr2(p).s_addr;
+ } else {
+ nmask.s_addr = htonl(((ALLONES >> atoi(p)) ^ ALLONES));
+ }
+
+ /* maybe the first component was a broadcast address */
+ if (ip.s_addr == MKBCADDR(ip.s_addr, nmask.s_addr) ||
+ ip.s_addr == MKNETADDR(ip.s_addr, nmask.s_addr)) {
+ for (i=0;i<total_probed;i++) {
+ if (same_net(tov4(ip), tov4(probed_ifaces[i].ip), tov4(nmask))) {
+ add_interface(probed_ifaces[i].ip, nmask);
+ return;
+ }
+ }
+ DEBUG(2,("Can't determine ip for broadcast address %s\n", token));
+ return;
+ }
+
+ add_interface(ip, nmask);
+}
+
+
+/****************************************************************************
+load the list of network interfaces
+****************************************************************************/
+void load_interfaces(void)
+{
+ const char **ptr;
+ int i;
+ struct iface_struct ifaces[MAX_INTERFACES];
+ TALLOC_CTX *mem_ctx;
+
+ ptr = lp_interfaces();
+ mem_ctx = talloc_init("load_interfaces");
+ if (!mem_ctx) {
+ DEBUG(2,("no memory to load interfaces \n"));
+ return;
+ }
+
+ allones_ip = interpret_addr2("255.255.255.255");
+ loopback_ip = interpret_addr2("127.0.0.1");
+
+ SAFE_FREE(probed_ifaces);
+
+ /* dump the current interfaces if any */
+ while (local_interfaces) {
+ struct interface *iface = local_interfaces;
+ DLIST_REMOVE(local_interfaces, local_interfaces);
+ ZERO_STRUCTPN(iface);
+ SAFE_FREE(iface);
+ }
+
+ /* probe the kernel for interfaces */
+ total_probed = get_interfaces(ifaces, MAX_INTERFACES);
+
+ if (total_probed > 0) {
+ probed_ifaces = memdup(ifaces, sizeof(ifaces[0])*total_probed);
+ }
+
+ /* if we don't have a interfaces line then use all broadcast capable
+ interfaces except loopback */
+ if (!ptr || !*ptr || !**ptr) {
+ if (total_probed <= 0) {
+ DEBUG(0,("ERROR: Could not determine network interfaces, you must use a interfaces config line\n"));
+ exit(1);
+ }
+ for (i=0;i<total_probed;i++) {
+ if (probed_ifaces[i].netmask.s_addr != allones_ip.s_addr &&
+ probed_ifaces[i].ip.s_addr != loopback_ip.s_addr) {
+ add_interface(probed_ifaces[i].ip,
+ probed_ifaces[i].netmask);
+ }
+ }
+ goto exit;
+ }
+
+ if (ptr) {
+ while (*ptr) {
+ interpret_interface(mem_ctx, *ptr);
+ ptr++;
+ }
+ }
+
+ if (!local_interfaces) {
+ DEBUG(0,("WARNING: no network interfaces found\n"));
+ }
+
+exit:
+ talloc_destroy(mem_ctx);
+}
+
+
+/****************************************************************************
+return True if the list of probed interfaces has changed
+****************************************************************************/
+BOOL interfaces_changed(void)
+{
+ int n;
+ struct iface_struct ifaces[MAX_INTERFACES];
+
+ n = get_interfaces(ifaces, MAX_INTERFACES);
+
+ if ((n > 0 )&& (n != total_probed ||
+ memcmp(ifaces, probed_ifaces, sizeof(ifaces[0])*n))) {
+ return True;
+ }
+
+ return False;
+}
+
+
+/****************************************************************************
+ check if an IP is one of mine
+ **************************************************************************/
+BOOL ismyip(struct ipv4_addr ip)
+{
+ struct interface *i;
+ for (i=local_interfaces;i;i=i->next)
+ if (ip_equal(i->ip,ip)) return True;
+ return False;
+}
+
+/****************************************************************************
+ check if a packet is from a local (known) net
+ **************************************************************************/
+BOOL is_local_net(struct ipv4_addr from)
+{
+ struct interface *i;
+ for (i=local_interfaces;i;i=i->next) {
+ if((from.s_addr & i->nmask.s_addr) ==
+ (i->ip.s_addr & i->nmask.s_addr))
+ return True;
+ }
+ return False;
+}
+
+/****************************************************************************
+ how many interfaces do we have
+ **************************************************************************/
+int iface_count(void)
+{
+ int ret = 0;
+ struct interface *i;
+
+ for (i=local_interfaces;i;i=i->next)
+ ret++;
+ return ret;
+}
+
+/****************************************************************************
+ return IP of the Nth interface
+ **************************************************************************/
+struct ipv4_addr *iface_n_ip(int n)
+{
+ struct interface *i;
+
+ for (i=local_interfaces;i && n;i=i->next)
+ n--;
+
+ if (i) return &i->ip;
+ return NULL;
+}
+
+/****************************************************************************
+ return bcast of the Nth interface
+ **************************************************************************/
+struct ipv4_addr *iface_n_bcast(int n)
+{
+ struct interface *i;
+
+ for (i=local_interfaces;i && n;i=i->next)
+ n--;
+
+ if (i) return &i->bcast;
+ return NULL;
+}
+
+
+/* these 3 functions return the ip/bcast/nmask for the interface
+ most appropriate for the given ip address. If they can't find
+ an appropriate interface they return the requested field of the
+ first known interface. */
+
+struct ipv4_addr *iface_ip(struct ipv4_addr ip)
+{
+ struct in_addr in;
+ struct interface *i;
+ in.s_addr = ip.s_addr;
+ i = iface_find(in, True);
+ return(i ? &i->ip : &local_interfaces->ip);
+}
+
+/*
+ return True if a IP is directly reachable on one of our interfaces
+*/
+BOOL iface_local(struct ipv4_addr ip)
+{
+ struct in_addr in;
+ in.s_addr = ip.s_addr;
+ return iface_find(in, True) ? True : False;
+}
diff --git a/source4/lib/netif/netif.c b/source4/lib/netif/netif.c
new file mode 100644
index 0000000000..729aeedbe3
--- /dev/null
+++ b/source4/lib/netif/netif.c
@@ -0,0 +1,400 @@
+/*
+ Unix SMB/CIFS implementation.
+ return a list of network interfaces
+ Copyright (C) Andrew Tridgell 1998
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+
+/* working out the interfaces for a OS is an incredibly non-portable
+ thing. We have several possible implementations below, and autoconf
+ tries each of them to see what works
+
+ Note that this file does _not_ include includes.h. That is so this code
+ can be called directly from the autoconf tests. That also means
+ this code cannot use any of the normal Samba debug stuff or defines.
+ This is standalone code.
+
+*/
+
+#include <unistd.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <netdb.h>
+#include <sys/ioctl.h>
+#include <sys/time.h>
+#include <net/if.h>
+#include <netdb.h>
+#include <sys/ioctl.h>
+#include <sys/time.h>
+#include <net/if.h>
+
+#ifndef AUTOCONF_TEST
+#include "lib/netif/netif.h"
+#include "config.h"
+#endif
+
+#ifdef HAVE_SYS_TIME_H
+#include <sys/time.h>
+#endif
+
+#ifndef SIOCGIFCONF
+#ifdef HAVE_SYS_SOCKIO_H
+#include <sys/sockio.h>
+#endif
+#endif
+
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+
+#ifdef HAVE_STRING_H
+#include <string.h>
+#endif
+
+#ifdef HAVE_STRINGS_H
+#include <strings.h>
+#endif
+
+#ifdef __COMPAR_FN_T
+#define QSORT_CAST (__compar_fn_t)
+#endif
+
+#ifndef QSORT_CAST
+#define QSORT_CAST (int (*)(const void *, const void *))
+#endif
+
+#if HAVE_IFACE_IFCONF
+
+/* this works for Linux 2.2, Solaris 2.5, SunOS4, HPUX 10.20, OSF1
+ V4.0, Ultrix 4.4, SCO Unix 3.2, IRIX 6.4 and FreeBSD 3.2.
+
+ It probably also works on any BSD style system. */
+
+/****************************************************************************
+ get the netmask address for a local interface
+****************************************************************************/
+static int _get_interfaces(struct iface_struct *ifaces, int max_interfaces)
+{
+ struct ifconf ifc;
+ char buff[8192];
+ int fd, i, n;
+ struct ifreq *ifr=NULL;
+ int total = 0;
+ struct in_addr ipaddr;
+ struct in_addr nmask;
+ char *iname;
+
+ if ((fd = socket(AF_INET, SOCK_DGRAM, 0)) == -1) {
+ return -1;
+ }
+
+ ifc.ifc_len = sizeof(buff);
+ ifc.ifc_buf = buff;
+
+ if (ioctl(fd, SIOCGIFCONF, &ifc) != 0) {
+ close(fd);
+ return -1;
+ }
+
+ ifr = ifc.ifc_req;
+
+ n = ifc.ifc_len / sizeof(struct ifreq);
+
+ /* Loop through interfaces, looking for given IP address */
+ for (i=n-1;i>=0 && total < max_interfaces;i--) {
+ if (ioctl(fd, SIOCGIFADDR, &ifr[i]) != 0) {
+ continue;
+ }
+
+ iname = ifr[i].ifr_name;
+ ipaddr = (*(struct sockaddr_in *)&ifr[i].ifr_addr).sin_addr;
+
+ if (ioctl(fd, SIOCGIFFLAGS, &ifr[i]) != 0) {
+ continue;
+ }
+
+ if (!(ifr[i].ifr_flags & IFF_UP)) {
+ continue;
+ }
+
+ if (ioctl(fd, SIOCGIFNETMASK, &ifr[i]) != 0) {
+ continue;
+ }
+
+ nmask = ((struct sockaddr_in *)&ifr[i].ifr_addr)->sin_addr;
+
+ strncpy(ifaces[total].name, iname, sizeof(ifaces[total].name)-1);
+ ifaces[total].name[sizeof(ifaces[total].name)-1] = 0;
+ ifaces[total].ip = ipaddr;
+ ifaces[total].netmask = nmask;
+ total++;
+ }
+
+ close(fd);
+
+ return total;
+}
+
+#elif HAVE_IFACE_IFREQ
+
+#ifndef I_STR
+#include <sys/stropts.h>
+#endif
+
+/****************************************************************************
+this should cover most of the streams based systems
+Thanks to Andrej.Borsenkow@mow.siemens.ru for several ideas in this code
+****************************************************************************/
+static int _get_interfaces(struct iface_struct *ifaces, int max_interfaces)
+{
+ struct ifreq ifreq;
+ struct strioctl strioctl;
+ char buff[8192];
+ int fd, i, n;
+ struct ifreq *ifr=NULL;
+ int total = 0;
+ struct in_addr ipaddr;
+ struct in_addr nmask;
+ char *iname;
+
+ if ((fd = socket(AF_INET, SOCK_DGRAM, 0)) == -1) {
+ return -1;
+ }
+
+ strioctl.ic_cmd = SIOCGIFCONF;
+ strioctl.ic_dp = buff;
+ strioctl.ic_len = sizeof(buff);
+ if (ioctl(fd, I_STR, &strioctl) < 0) {
+ close(fd);
+ return -1;
+ }
+
+ /* we can ignore the possible sizeof(int) here as the resulting
+ number of interface structures won't change */
+ n = strioctl.ic_len / sizeof(struct ifreq);
+
+ /* we will assume that the kernel returns the length as an int
+ at the start of the buffer if the offered size is a
+ multiple of the structure size plus an int */
+ if (n*sizeof(struct ifreq) + sizeof(int) == strioctl.ic_len) {
+ ifr = (struct ifreq *)(buff + sizeof(int));
+ } else {
+ ifr = (struct ifreq *)buff;
+ }
+
+ /* Loop through interfaces */
+
+ for (i = 0; i<n && total < max_interfaces; i++) {
+ ifreq = ifr[i];
+
+ strioctl.ic_cmd = SIOCGIFFLAGS;
+ strioctl.ic_dp = (char *)&ifreq;
+ strioctl.ic_len = sizeof(struct ifreq);
+ if (ioctl(fd, I_STR, &strioctl) != 0) {
+ continue;
+ }
+
+ if (!(ifreq.ifr_flags & IFF_UP)) {
+ continue;
+ }
+
+ strioctl.ic_cmd = SIOCGIFADDR;
+ strioctl.ic_dp = (char *)&ifreq;
+ strioctl.ic_len = sizeof(struct ifreq);
+ if (ioctl(fd, I_STR, &strioctl) != 0) {
+ continue;
+ }
+
+ ipaddr = (*(struct sockaddr_in *) &ifreq.ifr_addr).sin_addr;
+ iname = ifreq.ifr_name;
+
+ strioctl.ic_cmd = SIOCGIFNETMASK;
+ strioctl.ic_dp = (char *)&ifreq;
+ strioctl.ic_len = sizeof(struct ifreq);
+ if (ioctl(fd, I_STR, &strioctl) != 0) {
+ continue;
+ }
+
+ nmask = ((struct sockaddr_in *)&ifreq.ifr_addr)->sin_addr;
+
+ strncpy(ifaces[total].name, iname, sizeof(ifaces[total].name)-1);
+ ifaces[total].name[sizeof(ifaces[total].name)-1] = 0;
+ ifaces[total].ip = ipaddr;
+ ifaces[total].netmask = nmask;
+
+ total++;
+ }
+
+ close(fd);
+
+ return total;
+}
+
+#elif HAVE_IFACE_AIX
+
+/****************************************************************************
+this one is for AIX (tested on 4.2)
+****************************************************************************/
+static int _get_interfaces(struct iface_struct *ifaces, int max_interfaces)
+{
+ char buff[8192];
+ int fd, i;
+ struct ifconf ifc;
+ struct ifreq *ifr=NULL;
+ struct in_addr ipaddr;
+ struct in_addr nmask;
+ char *iname;
+ int total = 0;
+
+ if ((fd = socket(AF_INET, SOCK_DGRAM, 0)) == -1) {
+ return -1;
+ }
+
+
+ ifc.ifc_len = sizeof(buff);
+ ifc.ifc_buf = buff;
+
+ if (ioctl(fd, SIOCGIFCONF, &ifc) != 0) {
+ close(fd);
+ return -1;
+ }
+
+ ifr = ifc.ifc_req;
+
+ /* Loop through interfaces */
+ i = ifc.ifc_len;
+
+ while (i > 0 && total < max_interfaces) {
+ uint_t inc;
+
+ inc = ifr->ifr_addr.sa_len;
+
+ if (ioctl(fd, SIOCGIFADDR, ifr) != 0) {
+ goto next;
+ }
+
+ ipaddr = (*(struct sockaddr_in *) &ifr->ifr_addr).sin_addr;
+ iname = ifr->ifr_name;
+
+ if (ioctl(fd, SIOCGIFFLAGS, ifr) != 0) {
+ goto next;
+ }
+
+ if (!(ifr->ifr_flags & IFF_UP)) {
+ goto next;
+ }
+
+ if (ioctl(fd, SIOCGIFNETMASK, ifr) != 0) {
+ goto next;
+ }
+
+ nmask = ((struct sockaddr_in *)&ifr->ifr_addr)->sin_addr;
+
+ strncpy(ifaces[total].name, iname, sizeof(ifaces[total].name)-1);
+ ifaces[total].name[sizeof(ifaces[total].name)-1] = 0;
+ ifaces[total].ip = ipaddr;
+ ifaces[total].netmask = nmask;
+
+ total++;
+
+ next:
+ /*
+ * Patch from Archie Cobbs (archie@whistle.com). The
+ * addresses in the SIOCGIFCONF interface list have a
+ * minimum size. Usually this doesn't matter, but if
+ * your machine has tunnel interfaces, etc. that have
+ * a zero length "link address", this does matter. */
+
+ if (inc < sizeof(ifr->ifr_addr))
+ inc = sizeof(ifr->ifr_addr);
+ inc += IFNAMSIZ;
+
+ ifr = (struct ifreq*) (((char*) ifr) + inc);
+ i -= inc;
+ }
+
+
+ close(fd);
+ return total;
+}
+
+#else /* a dummy version */
+static int _get_interfaces(struct iface_struct *ifaces, int max_interfaces)
+{
+ return -1;
+}
+#endif
+
+
+static int iface_comp(struct iface_struct *i1, struct iface_struct *i2)
+{
+ int r;
+ r = strcmp(i1->name, i2->name);
+ if (r) return r;
+ r = ntohl(i1->ip.s_addr) - ntohl(i2->ip.s_addr);
+ if (r) return r;
+ r = ntohl(i1->netmask.s_addr) - ntohl(i2->netmask.s_addr);
+ return r;
+}
+
+/* this wrapper is used to remove duplicates from the interface list generated
+ above */
+int get_interfaces(struct iface_struct *ifaces, int max_interfaces)
+{
+ int total, i, j;
+
+ total = _get_interfaces(ifaces, max_interfaces);
+ if (total <= 0) return total;
+
+ /* now we need to remove duplicates */
+ qsort(ifaces, total, sizeof(ifaces[0]), QSORT_CAST iface_comp);
+
+ for (i=1;i<total;) {
+ if (iface_comp(&ifaces[i-1], &ifaces[i]) == 0) {
+ for (j=i-1;j<total-1;j++) {
+ ifaces[j] = ifaces[j+1];
+ }
+ total--;
+ } else {
+ i++;
+ }
+ }
+
+ return total;
+}
+
+
+#ifdef AUTOCONF_TEST
+/* this is the autoconf driver to test get_interfaces() */
+
+ int main()
+{
+ struct iface_struct ifaces[MAX_INTERFACES];
+ int total = get_interfaces(ifaces, MAX_INTERFACES);
+ int i;
+
+ printf("got %d interfaces:\n", total);
+ if (total <= 0) exit(1);
+
+ for (i=0;i<total;i++) {
+ printf("%-10s ", ifaces[i].name);
+ printf("IP=%s ", inet_ntoa(ifaces[i].ip));
+ printf("NETMASK=%s\n", inet_ntoa(ifaces[i].netmask));
+ }
+ return 0;
+}
+#endif
diff --git a/source4/lib/netif/netif.h b/source4/lib/netif/netif.h
new file mode 100644
index 0000000000..d25294f8c2
--- /dev/null
+++ b/source4/lib/netif/netif.h
@@ -0,0 +1,34 @@
+/*
+ Unix SMB/CIFS implementation.
+
+ structures for lib/netif/
+
+ Copyright (C) Andrew Tridgell 2004
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
+struct iface_struct {
+ char name[16];
+ struct in_addr ip;
+ struct in_addr netmask;
+};
+
+#define MAX_INTERFACES 128
+
generated by cgit (git 2.34.1) at 2024-11-18 21:49:12 +0000