net-util: verify the address family

[elogind.git] / src / network / networkd-address.c

diff --git a/src/network/networkd-address.c b/src/network/networkd-address.c
index 8a716300513c8ea2ea1bb575b8d290e026dcf6be..de5566dfdb44b96b50bf749fc2a4667a4f68de07 100644 (file)
--- a/src/network/networkd-address.c
+++ b/src/network/networkd-address.c
@@ -46,6 +46,8 @@ int address_new_static(Network *network, unsigned section, Address **ret) {
         if (!address)
                 return -ENOMEM;
 
+        address->family = AF_UNSPEC;
+
         address->network = network;
 
         LIST_PREPEND(static_addresses, network->static_addresses, address);
@@ -68,6 +70,8 @@ int address_new_dynamic(Address **ret) {
         if (!address)
                 return -ENOMEM;
 
+        address->family = AF_UNSPEC;
+
         *ret = address;
         address = NULL;
 
@@ -101,14 +105,19 @@ int address_drop(Address *address, Link *link,
         assert(link->manager);
         assert(link->manager->rtnl);
 
-        r = sd_rtnl_message_addr_new(RTM_DELADDR, link->ifindex,
-                        address->family, address->prefixlen, 0, 0, &req);
+        r = sd_rtnl_message_addr_new(RTM_DELADDR, link->ifindex, address->family, &req);
         if (r < 0) {
                 log_error("Could not allocate RTM_DELADDR message: %s",
                           strerror(-r));
                 return r;
         }
 
+        r = sd_rtnl_message_addr_set_prefixlen(req, address->prefixlen);
+        if (r < 0) {
+                log_error("Could not set prefixlen: %s", strerror(-r));
+                return r;
+        }
+
         if (address->family == AF_INET)
                 r = sd_rtnl_message_append_in_addr(req, IFA_LOCAL, &address->in_addr.in);
         else if (address->family == AF_INET6)
@@ -141,14 +150,31 @@ int address_configure(Address *address, Link *link,
         assert(link->manager->rtnl);
 
         r = sd_rtnl_message_addr_new(RTM_NEWADDR, link->ifindex,
-                        address->family, address->prefixlen,
-                        IFA_F_PERMANENT, RT_SCOPE_UNIVERSE, &req);
+                        address->family, &req);
         if (r < 0) {
                 log_error("Could not allocate RTM_NEWADDR message: %s",
                           strerror(-r));
                 return r;
         }
 
+        r = sd_rtnl_message_addr_set_prefixlen(req, address->prefixlen);
+        if (r < 0) {
+                log_error("Could not set prefixlen: %s", strerror(-r));
+                return r;
+        }
+
+        r = sd_rtnl_message_addr_set_flags(req, IFA_F_PERMANENT);
+        if (r < 0) {
+                log_error("Could not set flags: %s", strerror(-r));
+                return r;
+        }
+
+        r = sd_rtnl_message_addr_set_scope(req, RT_SCOPE_UNIVERSE);
+        if (r < 0) {
+                log_error("Could not set scope: %s", strerror(-r));
+                return r;
+        }
+
         if (address->family == AF_INET)
                 r = sd_rtnl_message_append_in_addr(req, IFA_LOCAL, &address->in_addr.in);
         else if (address->family == AF_INET6)
@@ -190,6 +216,43 @@ int address_configure(Address *address, Link *link,
         return 0;
 }
 
+int config_parse_dns(const char *unit,
+                const char *filename,
+                unsigned line,
+                const char *section,
+                unsigned section_line,
+                const char *lvalue,
+                int ltype,
+                const char *rvalue,
+                void *data,
+                void *userdata) {
+        Address **dns = data;
+        _cleanup_address_free_ Address *n = NULL;
+        int r;
+
+        assert(filename);
+        assert(section);
+        assert(lvalue);
+        assert(rvalue);
+        assert(data);
+
+        r = address_new_dynamic(&n);
+        if (r < 0)
+                return r;
+
+        r = net_parse_inaddr(rvalue, &n->family, &n->in_addr);
+        if (r < 0) {
+                log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+                           "DNS address is invalid, ignoring assignment: %s", rvalue);
+                return 0;
+        }
+
+        *dns = n;
+        n = NULL;
+
+        return 0;
+}
+
 int config_parse_address(const char *unit,
                 const char *filename,
                 unsigned line,