s3-lib Use common lib/socket code for get_interfaces() et al

4 files changed, 3 insertions, 302 deletions

diff --git a/source3/lib/access.c b/source3/lib/access.c
index f9cd9d547c..044c079cc5 100644
--- a/source3/lib/access.c
+++ b/source3/lib/access.c
@@ -12,7 +12,7 @@
 
 #include "includes.h"
 #include "memcache.h"
-#include "interfaces.h"
+#include "lib/socket/interfaces.h"
 
 #define NAME_INDEX 0
 #define ADDR_INDEX 1
diff --git a/source3/lib/interface.c b/source3/lib/interface.c
index ac68324de9..39dc9cb04c 100644
--- a/source3/lib/interface.c
+++ b/source3/lib/interface.c
@@ -19,7 +19,7 @@
 */
 
 #include "includes.h"
-#include "interfaces.h"
+#include "lib/socket/interfaces.h"
 
 static struct iface_struct *probed_ifaces;
 static int total_probed;
diff --git a/source3/lib/interfaces.c b/source3/lib/interfaces.c
deleted file mode 100644
index a2dce97eb6..0000000000
--- a/source3/lib/interfaces.c
+++ /dev/null
@@ -1,299 +0,0 @@
-/*
-   Unix SMB/CIFS implementation.
-   return a list of network interfaces
-   Copyright (C) Andrew Tridgell 1998
-   Copyright (C) Jeremy Allison 2007
-
-   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 3 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, see <http://www.gnu.org/licenses/>.
-*/
-
-#include "includes.h"
-#include "interfaces.h"
-
-/****************************************************************************
- Create a struct sockaddr_storage with the netmask bits set to 1.
-****************************************************************************/
-
-bool make_netmask(struct sockaddr_storage *pss_out,
-			const struct sockaddr_storage *pss_in,
-			unsigned long masklen)
-{
-	*pss_out = *pss_in;
-	/* Now apply masklen bits of mask. */
-#if defined(HAVE_IPV6)
-	if (pss_in->ss_family == AF_INET6) {
-		char *p = (char *)&((struct sockaddr_in6 *)pss_out)->sin6_addr;
-		unsigned int i;
-
-		if (masklen > 128) {
-			return false;
-		}
-		for (i = 0; masklen >= 8; masklen -= 8, i++) {
-			*p++ = 0xff;
-		}
-		/* Deal with the partial byte. */
-		*p++ &= (0xff & ~(0xff>>masklen));
-		i++;
-		for (;i < sizeof(struct in6_addr); i++) {
-			*p++ = '\0';
-		}
-		return true;
-	}
-#endif
-	if (pss_in->ss_family == AF_INET) {
-		if (masklen > 32) {
-			return false;
-		}
-		((struct sockaddr_in *)pss_out)->sin_addr.s_addr =
-			htonl(((0xFFFFFFFFL >> masklen) ^ 0xFFFFFFFFL));
-		return true;
-	}
-	return false;
-}
-
-/****************************************************************************
- Create a struct sockaddr_storage set to the broadcast or network adress from
- an incoming sockaddr_storage.
-****************************************************************************/
-
-static void make_bcast_or_net(struct sockaddr_storage *pss_out,
-			const struct sockaddr_storage *pss_in,
-			const struct sockaddr_storage *nmask,
-			bool make_bcast_p)
-{
-	unsigned int i = 0, len = 0;
-	char *pmask = NULL;
-	char *p = NULL;
-	*pss_out = *pss_in;
-
-	/* Set all zero netmask bits to 1. */
-#if defined(HAVE_IPV6)
-	if (pss_in->ss_family == AF_INET6) {
-		p = (char *)&((struct sockaddr_in6 *)pss_out)->sin6_addr;
-		pmask = discard_const_p(char, &((const struct sockaddr_in6 *)nmask)->sin6_addr);
-		len = 16;
-	}
-#endif
-	if (pss_in->ss_family == AF_INET) {
-		p = (char *)&((struct sockaddr_in *)pss_out)->sin_addr;
-		pmask = discard_const_p(char, &((const struct sockaddr_in *)nmask)->sin_addr);
-		len = 4;
-	}
-
-	for (i = 0; i < len; i++, p++, pmask++) {
-		if (make_bcast_p) {
-			*p = (*p & *pmask) | (*pmask ^ 0xff);
-		} else {
-			/* make_net */
-			*p = (*p & *pmask);
-		}
-	}
-}
-
-void make_bcast(struct sockaddr_storage *pss_out,
-			const struct sockaddr_storage *pss_in,
-			const struct sockaddr_storage *nmask)
-{
-	make_bcast_or_net(pss_out, pss_in, nmask, true);
-}
-
-void make_net(struct sockaddr_storage *pss_out,
-			const struct sockaddr_storage *pss_in,
-			const struct sockaddr_storage *nmask)
-{
-	make_bcast_or_net(pss_out, pss_in, nmask, false);
-}
-
-/****************************************************************************
- Try the "standard" getifaddrs/freeifaddrs interfaces.
- Also gets IPv6 interfaces.
-****************************************************************************/
-
-/****************************************************************************
- Get the netmask address for a local interface.
-****************************************************************************/
-
-static int _get_interfaces(TALLOC_CTX *mem_ctx, struct iface_struct **pifaces)
-{
-	struct iface_struct *ifaces;
-	struct ifaddrs *iflist = NULL;
-	struct ifaddrs *ifptr = NULL;
-	int count;
-	int total = 0;
-	size_t copy_size;
-
-	if (getifaddrs(&iflist) < 0) {
-		return -1;
-	}
-
-	count = 0;
-	for (ifptr = iflist; ifptr != NULL; ifptr = ifptr->ifa_next) {
-		if (!ifptr->ifa_addr || !ifptr->ifa_netmask) {
-			continue;
-		}
-		if (!(ifptr->ifa_flags & IFF_UP)) {
-			continue;
-		}
-		count += 1;
-	}
-
-	ifaces = talloc_array(mem_ctx, struct iface_struct, count);
-	if (ifaces == NULL) {
-		errno = ENOMEM;
-		return -1;
-	}
-
-	/* Loop through interfaces, looking for given IP address */
-	for (ifptr = iflist; ifptr != NULL; ifptr = ifptr->ifa_next) {
-
-		if (!ifptr->ifa_addr || !ifptr->ifa_netmask) {
-			continue;
-		}
-
-		/* Check the interface is up. */
-		if (!(ifptr->ifa_flags & IFF_UP)) {
-			continue;
-		}
-
-		memset(&ifaces[total], '\0', sizeof(ifaces[total]));
-
-		copy_size = sizeof(struct sockaddr_in);
-
-		ifaces[total].flags = ifptr->ifa_flags;
-
-#if defined(HAVE_IPV6)
-		if (ifptr->ifa_addr->sa_family == AF_INET6) {
-			copy_size = sizeof(struct sockaddr_in6);
-		}
-#endif
-
-		memcpy(&ifaces[total].ip, ifptr->ifa_addr, copy_size);
-		memcpy(&ifaces[total].netmask, ifptr->ifa_netmask, copy_size);
-
-		if (ifaces[total].flags & (IFF_BROADCAST|IFF_LOOPBACK)) {
-			make_bcast(&ifaces[total].bcast,
-				&ifaces[total].ip,
-				&ifaces[total].netmask);
-		} else if ((ifaces[total].flags & IFF_POINTOPOINT) &&
-			       ifptr->ifa_dstaddr ) {
-			memcpy(&ifaces[total].bcast,
-				ifptr->ifa_dstaddr,
-				copy_size);
-		} else {
-			continue;
-		}
-
-		strlcpy(ifaces[total].name, ifptr->ifa_name,
-			sizeof(ifaces[total].name));
-		total++;
-	}
-
-	freeifaddrs(iflist);
-
-	*pifaces = ifaces;
-	return total;
-}
-
-static int iface_comp(struct iface_struct *i1, struct iface_struct *i2)
-{
-	int r;
-
-#if defined(HAVE_IPV6)
-	/*
-	 * If we have IPv6 - sort these interfaces lower
-	 * than any IPv4 ones.
-	 */
-	if (i1->ip.ss_family == AF_INET6 &&
-			i2->ip.ss_family == AF_INET) {
-		return -1;
-	} else if (i1->ip.ss_family == AF_INET &&
-			i2->ip.ss_family == AF_INET6) {
-		return 1;
-	}
-
-	if (i1->ip.ss_family == AF_INET6) {
-		struct sockaddr_in6 *s1 = (struct sockaddr_in6 *)&i1->ip;
-		struct sockaddr_in6 *s2 = (struct sockaddr_in6 *)&i2->ip;
-
-		r = memcmp(&s1->sin6_addr,
-				&s2->sin6_addr,
-				sizeof(struct in6_addr));
-		if (r) {
-			return r;
-		}
-
-		s1 = (struct sockaddr_in6 *)&i1->netmask;
-		s2 = (struct sockaddr_in6 *)&i2->netmask;
-
-		r = memcmp(&s1->sin6_addr,
-				&s2->sin6_addr,
-				sizeof(struct in6_addr));
-		if (r) {
-			return r;
-		}
-	}
-#endif
-
-	/* AIX uses __ss_family instead of ss_family inside of
-	   sockaddr_storage. Instead of trying to figure out which field to
-	   use, we can just cast it to a sockaddr.
-	 */
-
-	if (((struct sockaddr *)&i1->ip)->sa_family == AF_INET) {
-		struct sockaddr_in *s1 = (struct sockaddr_in *)&i1->ip;
-		struct sockaddr_in *s2 = (struct sockaddr_in *)&i2->ip;
-
-		r = ntohl(s1->sin_addr.s_addr) -
-			ntohl(s2->sin_addr.s_addr);
-		if (r) {
-			return r;
-		}
-
-		s1 = (struct sockaddr_in *)&i1->netmask;
-		s2 = (struct sockaddr_in *)&i2->netmask;
-
-		return ntohl(s1->sin_addr.s_addr) -
-			ntohl(s2->sin_addr.s_addr);
-	}
-	return 0;
-}
-
-/* this wrapper is used to remove duplicates from the interface list generated
-   above */
-int get_interfaces(TALLOC_CTX *mem_ctx, struct iface_struct **pifaces)
-{
-	struct iface_struct *ifaces;
-	int total, i, j;
-
-	total = _get_interfaces(mem_ctx, &ifaces);
-	if (total <= 0) return total;
-
-	/* now we need to remove duplicates */
-	TYPESAFE_QSORT(ifaces, total, 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++;
-		}
-	}
-
-	*pifaces = ifaces;
-	return total;
-}
-
diff --git a/source3/lib/util_sock.c b/source3/lib/util_sock.c
index 922213d8f6..371b8c08b8 100644
--- a/source3/lib/util_sock.c
+++ b/source3/lib/util_sock.c
@@ -24,7 +24,7 @@
 #include "memcache.h"
 #include "../lib/async_req/async_sock.h"
 #include "../lib/util/select.h"
-#include "interfaces.h"
+#include "lib/socket/interfaces.h"
 #include "../lib/util/tevent_unix.h"
 #include "../lib/util/tevent_ntstatus.h"