diff options
Diffstat (limited to 'source4/lib/netif')
-rw-r--r-- | source4/lib/netif/config.m4 | 42 | ||||
-rw-r--r-- | source4/lib/netif/interface.c | 354 | ||||
-rw-r--r-- | source4/lib/netif/netif.c | 403 | ||||
-rw-r--r-- | source4/lib/netif/netif.h | 33 |
4 files changed, 0 insertions, 832 deletions
diff --git a/source4/lib/netif/config.m4 b/source4/lib/netif/config.m4 deleted file mode 100644 index 9880440f21..0000000000 --- a/source4/lib/netif/config.m4 +++ /dev/null @@ -1,42 +0,0 @@ -AC_CHECK_HEADERS(arpa/inet.h net/if.h netdb.h netinet/in.h sys/time.h) -AC_CHECK_HEADERS(netinet/ip.h netinet/tcp.h netinet/in_systm.h netinet/in_ip.h) - -################## -# look for a method of finding the list of network interfaces -iface=no; -AC_CACHE_CHECK([for iface AIX],samba_cv_HAVE_IFACE_AIX,[ -AC_TRY_RUN([ -#define HAVE_IFACE_AIX 1 -#define AUTOCONF_TEST 1 -#include "confdefs.h" -#include "${srcdir-.}/lib/netif/netif.c"], - samba_cv_HAVE_IFACE_AIX=yes,samba_cv_HAVE_IFACE_AIX=no,samba_cv_HAVE_IFACE_AIX=cross)]) -if test x"$samba_cv_HAVE_IFACE_AIX" = x"yes"; then - iface=yes;AC_DEFINE(HAVE_IFACE_AIX,1,[Whether iface AIX is available]) -fi - -if test $iface = no; then -AC_CACHE_CHECK([for iface ifconf],samba_cv_HAVE_IFACE_IFCONF,[ -AC_TRY_RUN([ -#define HAVE_IFACE_IFCONF 1 -#define AUTOCONF_TEST 1 -#include "confdefs.h" -#include "${srcdir-.}/lib/netif/netif.c"], - samba_cv_HAVE_IFACE_IFCONF=yes,samba_cv_HAVE_IFACE_IFCONF=no,samba_cv_HAVE_IFACE_IFCONF=cross)]) -if test x"$samba_cv_HAVE_IFACE_IFCONF" = x"yes"; then - iface=yes;AC_DEFINE(HAVE_IFACE_IFCONF,1,[Whether iface ifconf is available]) -fi -fi - -if test $iface = no; then -AC_CACHE_CHECK([for iface ifreq],samba_cv_HAVE_IFACE_IFREQ,[ -AC_TRY_RUN([ -#define HAVE_IFACE_IFREQ 1 -#define AUTOCONF_TEST 1 -#include "confdefs.h" -#include "${srcdir-.}/lib/netif/netif.c"], - samba_cv_HAVE_IFACE_IFREQ=yes,samba_cv_HAVE_IFACE_IFREQ=no,samba_cv_HAVE_IFACE_IFREQ=cross)]) -if test x"$samba_cv_HAVE_IFACE_IFREQ" = x"yes"; then - iface=yes;AC_DEFINE(HAVE_IFACE_IFREQ,1,[Whether iface ifreq is available]) -fi -fi diff --git a/source4/lib/netif/interface.c b/source4/lib/netif/interface.c deleted file mode 100644 index 019b05cfbb..0000000000 --- a/source4/lib/netif/interface.c +++ /dev/null @@ -1,354 +0,0 @@ -/* - Unix SMB/CIFS implementation. - - multiple interface handling - - Copyright (C) Andrew Tridgell 1992-2005 - - 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" -#include "dlinklist.h" - -/** used for network interfaces */ -struct interface { - struct interface *next, *prev; - struct ipv4_addr ip; - struct ipv4_addr nmask; - const char *ip_s; - const char *bcast_s; - const char *nmask_s; -}; - -static struct interface *local_interfaces; - -#define ALLONES ((uint32_t)0xFFFFFFFF) -/* - address construction based on a patch from fred@datalync.com -*/ -#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.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.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; - struct ipv4_addr bcast; - if (iface_find(ip, False)) { - DEBUG(3,("not adding duplicate interface %s\n",inet_ntoa(ip))); - return; - } - - iface = talloc(local_interfaces, struct interface); - if (!iface) return; - - ZERO_STRUCTPN(iface); - - iface->ip = tov4(ip); - iface->nmask = tov4(nmask); - bcast.addr = MKBCADDR(iface->ip.addr, iface->nmask.addr); - - /* keep string versions too, to avoid people tripping over the implied - static in sys_inet_ntoa() */ - iface->ip_s = talloc_strdup(iface, sys_inet_ntoa(iface->ip)); - iface->nmask_s = talloc_strdup(iface, sys_inet_ntoa(iface->nmask)); - - if (nmask.s_addr != ~0) { - iface->bcast_s = talloc_strdup(iface, sys_inet_ntoa(bcast)); - } - - DLIST_ADD_END(local_interfaces, iface, struct interface *); - - DEBUG(2,("added interface ip=%s nmask=%s\n", iface->ip_s, iface->nmask_s)); -} - - - -/** -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(const char *token, - struct iface_struct *probed_ifaces, - int total_probed) -{ - 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) { - /* don't try to do dns lookups on wildcard names */ - if (strpbrk(token, "*?") != NULL) { - return; - } - ip.s_addr = interpret_addr2(token).addr; - for (i=0;i<total_probed;i++) { - if (ip.s_addr == probed_ifaces[i].ip.s_addr) { - 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).addr; - - if (strlen(p) > 2) { - nmask.s_addr = interpret_addr2(p).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 -**/ -static void load_interfaces(void) -{ - const char **ptr; - int i; - struct iface_struct ifaces[MAX_INTERFACES]; - struct ipv4_addr loopback_ip; - int total_probed; - - if (local_interfaces != NULL) { - return; - } - - ptr = lp_interfaces(); - loopback_ip = interpret_addr2("127.0.0.1"); - - /* probe the kernel for interfaces */ - total_probed = get_interfaces(ifaces, MAX_INTERFACES); - - /* if we don't have a interfaces line then use all 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")); - } - for (i=0;i<total_probed;i++) { - if (ifaces[i].ip.s_addr != loopback_ip.addr) { - add_interface(ifaces[i].ip, - ifaces[i].netmask); - } - } - } - - while (ptr && *ptr) { - interpret_interface(*ptr, ifaces, total_probed); - ptr++; - } - - if (!local_interfaces) { - DEBUG(0,("WARNING: no network interfaces found\n")); - } -} - - -/** - unload the interfaces list, so it can be reloaded when needed -*/ -void unload_interfaces(void) -{ - talloc_free(local_interfaces); - local_interfaces = NULL; -} - -/** - how many interfaces do we have - **/ -int iface_count(void) -{ - int ret = 0; - struct interface *i; - - load_interfaces(); - - for (i=local_interfaces;i;i=i->next) - ret++; - return ret; -} - -/** - return IP of the Nth interface - **/ -const char *iface_n_ip(int n) -{ - struct interface *i; - - load_interfaces(); - - for (i=local_interfaces;i && n;i=i->next) - n--; - - if (i) { - return i->ip_s; - } - return NULL; -} - -/** - return bcast of the Nth interface - **/ -const char *iface_n_bcast(int n) -{ - struct interface *i; - - load_interfaces(); - - for (i=local_interfaces;i && n;i=i->next) - n--; - - if (i) { - return i->bcast_s; - } - return NULL; -} - -/** - return netmask of the Nth interface - **/ -const char *iface_n_netmask(int n) -{ - struct interface *i; - - load_interfaces(); - - for (i=local_interfaces;i && n;i=i->next) - n--; - - if (i) { - return i->nmask_s; - } - return NULL; -} - -/** - return the local IP address that best matches a destination IP, or - our first interface if none match -*/ -const char *iface_best_ip(const char *dest) -{ - struct interface *iface; - struct in_addr ip; - - load_interfaces(); - - ip.s_addr = interpret_addr(dest); - iface = iface_find(ip, True); - if (iface) { - return iface->ip_s; - } - return iface_n_ip(0); -} - -/** - return True if an IP is one one of our local networks -*/ -BOOL iface_is_local(const char *dest) -{ - struct in_addr ip; - - load_interfaces(); - - ip.s_addr = interpret_addr(dest); - if (iface_find(ip, True)) { - return True; - } - return False; -} - -/** - return True if a IP matches a IP/netmask pair -*/ -BOOL iface_same_net(const char *ip1, const char *ip2, const char *netmask) -{ - return same_net(interpret_addr2(ip1), - interpret_addr2(ip2), - interpret_addr2(netmask)); -} diff --git a/source4/lib/netif/netif.c b/source4/lib/netif/netif.c deleted file mode 100644 index 0344febf38..0000000000 --- a/source4/lib/netif/netif.c +++ /dev/null @@ -1,403 +0,0 @@ -/* - 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 <netdb.h> -#include <sys/ioctl.h> -#include <sys/time.h> -#include <sys/socket.h> -#include <netinet/in.h> -#include <arpa/inet.h> - -#ifndef AUTOCONF_TEST -#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 - -#include <net/if.h> -#define BOOL int -#include "netif.h" - -#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 deleted file mode 100644 index 558fda4792..0000000000 --- a/source4/lib/netif/netif.h +++ /dev/null @@ -1,33 +0,0 @@ -/* - 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. -*/ - -struct iface_struct { - char name[16]; - struct in_addr ip; - struct in_addr netmask; -}; - -#define MAX_INTERFACES 128 - -#ifndef AUTOCONF_TEST -#include "lib/netif/proto.h" -#endif |