#include "includes.h"
#include "system/network.h"
+#include "param/param.h"
#include "lib/socket/netif.h"
#include "../lib/util/util_net.h"
#include "../lib/util/dlinklist.h"
+#include "lib/util/smb_strtox.h"
-/** used for network interfaces */
+/* used for network interfaces */
struct interface {
struct interface *next, *prev;
- struct in_addr ip;
- struct in_addr nmask;
+ char *name;
+ int flags;
+ struct sockaddr_storage ip;
+ struct sockaddr_storage netmask;
+ struct sockaddr_storage bcast;
const char *ip_s;
const char *bcast_s;
const char *nmask_s;
/****************************************************************************
Try and find an interface that matches an ip. If we cannot, return NULL
**************************************************************************/
-static struct interface *iface_find(struct interface *interfaces,
- struct in_addr ip, bool CheckMask)
+static struct interface *iface_list_find(struct interface *interfaces,
+ const struct sockaddr *ip,
+ bool check_mask)
{
struct interface *i;
- if (is_zero_ip_v4(ip)) return interfaces;
- for (i=interfaces;i;i=i->next)
- if (CheckMask) {
- if (same_net_v4(i->ip,ip,i->nmask)) return i;
- } else if (i->ip.s_addr == ip.s_addr) return i;
+ if (is_address_any(ip)) {
+ return interfaces;
+ }
+
+ for (i=interfaces;i;i=i->next) {
+ if (check_mask) {
+ if (same_net(ip, (struct sockaddr *)&i->ip, (struct sockaddr *)&i->netmask)) {
+ return i;
+ }
+ } else if (sockaddr_equal((struct sockaddr *)&i->ip, ip)) {
+ return i;
+ }
+ }
return NULL;
}
-
/****************************************************************************
add an interface to the linked list of interfaces
****************************************************************************/
-static void add_interface(TALLOC_CTX *mem_ctx, struct in_addr ip, struct in_addr nmask, struct interface **interfaces)
+static void add_interface(TALLOC_CTX *mem_ctx, const struct iface_struct *ifs, struct interface **interfaces)
{
+ char addr[INET6_ADDRSTRLEN];
struct interface *iface;
- struct in_addr bcast;
- if (iface_find(*interfaces, ip, false)) {
- DEBUG(3,("not adding duplicate interface %s\n",inet_ntoa(ip)));
+ if (iface_list_find(*interfaces, (const struct sockaddr *)&ifs->ip, false)) {
+ DEBUG(3,("add_interface: not adding duplicate interface %s\n",
+ print_sockaddr(addr, sizeof(addr), &ifs->ip) ));
return;
}
- iface = talloc(*interfaces == NULL ? mem_ctx : *interfaces, struct interface);
- if (iface == NULL)
+ if (ifs->ip.ss_family == AF_INET &&
+ !(ifs->flags & (IFF_BROADCAST|IFF_LOOPBACK))) {
+ DEBUG(3,("not adding non-broadcast interface %s\n",
+ ifs->name ));
return;
-
- ZERO_STRUCTPN(iface);
+ }
- iface->ip = ip;
- iface->nmask = nmask;
- bcast.s_addr = MKBCADDR(iface->ip.s_addr, iface->nmask.s_addr);
+ if (*interfaces != NULL) {
+ mem_ctx = *interfaces;
+ }
- /* keep string versions too, to avoid people tripping over the implied
- static in inet_ntoa() */
- iface->ip_s = talloc_strdup(iface, inet_ntoa(iface->ip));
- iface->nmask_s = talloc_strdup(iface, inet_ntoa(iface->nmask));
-
- if (nmask.s_addr != ~0) {
- iface->bcast_s = talloc_strdup(iface, inet_ntoa(bcast));
+ iface = talloc_zero(mem_ctx, struct interface);
+ if (iface == NULL) {
+ return;
}
- DLIST_ADD_END(*interfaces, iface, struct interface *);
+ iface->name = talloc_strdup(iface, ifs->name);
+ if (!iface->name) {
+ SAFE_FREE(iface);
+ return;
+ }
+ iface->flags = ifs->flags;
+ iface->ip = ifs->ip;
+ iface->netmask = ifs->netmask;
+ iface->bcast = ifs->bcast;
- DEBUG(3,("added interface ip=%s nmask=%s\n", iface->ip_s, iface->nmask_s));
+ /* keep string versions too, to avoid people tripping over the implied
+ static in inet_ntoa() */
+ print_sockaddr(addr, sizeof(addr), &iface->ip);
+ DEBUG(4,("added interface %s ip=%s ",
+ iface->name, addr));
+ iface->ip_s = talloc_strdup(iface, addr);
+
+ print_sockaddr(addr, sizeof(addr),
+ &iface->bcast);
+ DEBUG(4,("bcast=%s ", addr));
+ iface->bcast_s = talloc_strdup(iface, addr);
+
+ print_sockaddr(addr, sizeof(addr),
+ &iface->netmask);
+ DEBUG(4,("netmask=%s\n", addr));
+ iface->nmask_s = talloc_strdup(iface, addr);
+
+ /*
+ this needs to be a ADD_END, as some tests (such as the
+ spoolss notify test) depend on the interfaces ordering
+ */
+ DLIST_ADD_END(*interfaces, iface);
}
-
-
/**
interpret a single element from a interfaces= config line
int total_probed,
struct interface **local_interfaces)
{
- struct in_addr ip, nmask;
+ struct sockaddr_storage ss;
+ struct sockaddr_storage ss_mask;
+ struct sockaddr_storage ss_net;
+ struct sockaddr_storage ss_bcast;
+ struct iface_struct ifs;
char *p;
- char *address;
- int i, added=0;
+ int i;
+ bool added=false;
+ bool goodaddr = false;
- 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(mem_ctx, probed_ifaces[i].ip,
- probed_ifaces[i].netmask,
+ add_interface(mem_ctx, &probed_ifaces[i],
local_interfaces);
- added = 1;
+ added = true;
}
}
- if (added) return;
+ if (added) {
+ return;
+ }
+
+ p = strchr_m(token, ';');
+ if (p != NULL) {
+ /*
+ * skip smbd-specific extra data:
+ * link speed, capabilities, and interface index
+ */
+ *p = 0;
+ }
/* 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) {
+ if (p == NULL) {
+ if (!interpret_string_addr(&ss, token, 0)) {
+ DEBUG(2, ("interpret_interface: Can't find address "
+ "for %s\n", token));
return;
}
- 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) {
- add_interface(mem_ctx, probed_ifaces[i].ip,
- probed_ifaces[i].netmask,
+ if (sockaddr_equal((struct sockaddr *)&ss, (struct sockaddr *)&probed_ifaces[i].ip)) {
+ add_interface(mem_ctx, &probed_ifaces[i],
local_interfaces);
return;
}
}
- DEBUG(2,("can't determine netmask for %s\n", token));
+ DEBUG(2,("interpret_interface: "
+ "can't determine interface for %s\n",
+ token));
return;
}
- address = talloc_strdup(mem_ctx, token);
- p = strchr_m(address,'/');
-
/* parse it into an IP address/netmasklength pair */
- *p++ = 0;
-
- ip.s_addr = interpret_addr2(address).s_addr;
+ *p = 0;
+ goodaddr = interpret_string_addr(&ss, token, 0);
+ *p++ = '/';
+
+ if (!goodaddr) {
+ DEBUG(2,("interpret_interface: "
+ "can't determine interface for %s\n",
+ token));
+ return;
+ }
if (strlen(p) > 2) {
- nmask.s_addr = interpret_addr2(p).s_addr;
+ goodaddr = interpret_string_addr(&ss_mask, p, 0);
+ if (!goodaddr) {
+ DEBUG(2,("interpret_interface: "
+ "can't determine netmask from %s\n",
+ p));
+ return;
+ }
} else {
- nmask.s_addr = htonl(((ALLONES >> atoi(p)) ^ ALLONES));
+ int error = 0;
+
+ unsigned long val = smb_strtoul(p,
+ NULL,
+ 0,
+ &error,
+ SMB_STR_FULL_STR_CONV);
+ if (error != 0) {
+ DEBUG(2,("interpret_interface: "
+ "can't determine netmask value from %s\n",
+ p));
+ return;
+ }
+ if (!make_netmask(&ss_mask, &ss, val)) {
+ DEBUG(2,("interpret_interface: "
+ "can't apply netmask value %lu from %s\n",
+ val,
+ p));
+ return;
+ }
}
- /* 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)) {
+ make_bcast(&ss_bcast, &ss, &ss_mask);
+ make_net(&ss_net, &ss, &ss_mask);
+
+ /* Maybe the first component was a broadcast address. */
+ if (sockaddr_equal((struct sockaddr *)&ss_bcast, (struct sockaddr *)&ss) ||
+ sockaddr_equal((struct sockaddr *)&ss_net, (struct sockaddr *)&ss)) {
for (i=0;i<total_probed;i++) {
- if (same_net_v4(ip, probed_ifaces[i].ip, nmask)) {
- add_interface(mem_ctx, probed_ifaces[i].ip, nmask,
+ if (same_net((struct sockaddr *)&ss,
+ (struct sockaddr *)&probed_ifaces[i].ip,
+ (struct sockaddr *)&ss_mask)) {
+ /* Temporarily replace netmask on
+ * the detected interface - user knows
+ * best.... */
+ struct sockaddr_storage saved_mask =
+ probed_ifaces[i].netmask;
+ probed_ifaces[i].netmask = ss_mask;
+ DEBUG(2,("interpret_interface: "
+ "using netmask value %s from "
+ "config file on interface %s\n",
+ p,
+ probed_ifaces[i].name));
+ add_interface(mem_ctx, &probed_ifaces[i],
local_interfaces);
- talloc_free(address);
+ probed_ifaces[i].netmask = saved_mask;
return;
}
}
- DEBUG(2,("Can't determine ip for broadcast address %s\n", address));
- talloc_free(address);
+ DEBUG(2,("interpret_interface: Can't determine ip for "
+ "broadcast address %s\n",
+ token));
return;
}
- add_interface(mem_ctx, ip, nmask, local_interfaces);
- talloc_free(address);
+ /* Just fake up the interface definition. User knows best. */
+
+ DEBUG(2,("interpret_interface: Adding interface %s\n",
+ token));
+
+ ZERO_STRUCT(ifs);
+ (void)strlcpy(ifs.name, token, sizeof(ifs.name));
+ ifs.flags = IFF_BROADCAST;
+ ifs.ip = ss;
+ ifs.netmask = ss_mask;
+ ifs.bcast = ss_bcast;
+ add_interface(mem_ctx, &ifs, local_interfaces);
}
/**
load the list of network interfaces
**/
-void load_interfaces(TALLOC_CTX *mem_ctx, const char **interfaces, struct interface **local_interfaces)
+void load_interface_list(TALLOC_CTX *mem_ctx, struct loadparm_context *lp_ctx, struct interface **local_interfaces)
{
- const char **ptr = interfaces;
+ const char **ptr = lpcfg_interfaces(lp_ctx);
int i;
- struct iface_struct ifaces[MAX_INTERFACES];
- struct in_addr loopback_ip;
+ struct iface_struct *ifaces = NULL;
int total_probed;
*local_interfaces = NULL;
- loopback_ip = interpret_addr2("127.0.0.1");
-
/* probe the kernel for interfaces */
- total_probed = get_interfaces(ifaces, MAX_INTERFACES);
+ total_probed = get_interfaces(mem_ctx, &ifaces);
/* if we don't have a interfaces line then use all interfaces
except loopback */
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.s_addr) {
- add_interface(mem_ctx, ifaces[i].ip,
- ifaces[i].netmask, local_interfaces);
+ if (!is_loopback_addr((struct sockaddr *)&ifaces[i].ip)) {
+ add_interface(mem_ctx, &ifaces[i], local_interfaces);
}
}
}
if (!*local_interfaces) {
DEBUG(0,("WARNING: no network interfaces found\n"));
}
+ talloc_free(ifaces);
}
/**
how many interfaces do we have
**/
-int iface_count(struct interface *ifaces)
+int iface_list_count(struct interface *ifaces)
{
int ret = 0;
struct interface *i;
/**
return IP of the Nth interface
**/
-const char *iface_n_ip(struct interface *ifaces, int n)
+const char *iface_list_n_ip(struct interface *ifaces, int n)
{
struct interface *i;
return NULL;
}
+
+/**
+ return the first IPv4 interface address we have registered
+ **/
+const char *iface_list_first_v4(struct interface *ifaces)
+{
+ struct interface *i;
+
+ for (i=ifaces; i; i=i->next) {
+ if (i->ip.ss_family == AF_INET) {
+ return i->ip_s;
+ }
+ }
+ return NULL;
+}
+
+/**
+ return the first IPv6 interface address we have registered
+ **/
+static const char *iface_list_first_v6(struct interface *ifaces)
+{
+ struct interface *i;
+
+#ifdef HAVE_IPV6
+ for (i=ifaces; i; i=i->next) {
+ if (i->ip.ss_family == AF_INET6) {
+ return i->ip_s;
+ }
+ }
+#endif
+ return NULL;
+}
+
+/**
+ check if an interface is IPv4
+ **/
+bool iface_list_n_is_v4(struct interface *ifaces, int n)
+{
+ struct interface *i;
+
+ for (i=ifaces;i && n;i=i->next)
+ n--;
+
+ if (i) {
+ return i->ip.ss_family == AF_INET;
+ }
+ return false;
+}
+
/**
return bcast of the Nth interface
**/
-const char *iface_n_bcast(struct interface *ifaces, int n)
+const char *iface_list_n_bcast(struct interface *ifaces, int n)
{
struct interface *i;
/**
return netmask of the Nth interface
**/
-const char *iface_n_netmask(struct interface *ifaces, int n)
+const char *iface_list_n_netmask(struct interface *ifaces, int n)
{
struct interface *i;
return the local IP address that best matches a destination IP, or
our first interface if none match
*/
-const char *iface_best_ip(struct interface *ifaces, const char *dest)
+const char *iface_list_best_ip(struct interface *ifaces, const char *dest)
{
struct interface *iface;
- struct in_addr ip;
+ struct sockaddr_storage ss;
- ip.s_addr = interpret_addr(dest);
- iface = iface_find(ifaces, ip, true);
+ if (!interpret_string_addr(&ss, dest, AI_NUMERICHOST)) {
+ return iface_list_n_ip(ifaces, 0);
+ }
+ iface = iface_list_find(ifaces, (const struct sockaddr *)&ss, true);
if (iface) {
return iface->ip_s;
}
- return iface_n_ip(ifaces, 0);
+#ifdef HAVE_IPV6
+ if (ss.ss_family == AF_INET6) {
+ return iface_list_first_v6(ifaces);
+ }
+#endif
+ return iface_list_first_v4(ifaces);
}
/**
return true if an IP is one one of our local networks
*/
-bool iface_is_local(struct interface *ifaces, const char *dest)
+bool iface_list_is_local(struct interface *ifaces, const char *dest)
{
- struct in_addr ip;
+ struct sockaddr_storage ss;
- ip.s_addr = interpret_addr(dest);
- if (iface_find(ifaces, ip, true)) {
+ if (!interpret_string_addr(&ss, dest, AI_NUMERICHOST)) {
+ return false;
+ }
+ if (iface_list_find(ifaces, (const struct sockaddr *)&ss, 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)
+bool iface_list_same_net(const char *ip1, const char *ip2, const char *netmask)
{
- return same_net_v4(interpret_addr2(ip1),
- interpret_addr2(ip2),
- interpret_addr2(netmask));
+ struct sockaddr_storage ip1_ss, ip2_ss, nm_ss;
+
+ if (!interpret_string_addr(&ip1_ss, ip1, AI_NUMERICHOST)) {
+ return false;
+ }
+ if (!interpret_string_addr(&ip2_ss, ip2, AI_NUMERICHOST)) {
+ return false;
+ }
+ if (!interpret_string_addr(&nm_ss, netmask, AI_NUMERICHOST)) {
+ return false;
+ }
+
+ return same_net((struct sockaddr *)&ip1_ss,
+ (struct sockaddr *)&ip2_ss,
+ (struct sockaddr *)&nm_ss);
+}
+
+/**
+ return the list of wildcard interfaces
+ this will include the IPv4 0.0.0.0, and may include IPv6 ::
+*/
+char **iface_list_wildcard(TALLOC_CTX *mem_ctx)
+{
+ char **ret;
+#ifdef HAVE_IPV6
+ ret = str_list_make(mem_ctx, "::,0.0.0.0", NULL);
+#else
+ ret = str_list_make(mem_ctx, "0.0.0.0", NULL);
+#endif
+ return ret;
}
git.samba.org / bbaumbach / samba-autobuild / .git / blobdiff