along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-#include <resolv.h>
+#include <sys/socket.h>
#include <linux/if.h>
+#include <libkmod.h>
+#include "conf-parser.h"
#include "path-util.h"
#include "networkd.h"
+#include "network-internal.h"
#include "libudev-private.h"
#include "udev-util.h"
#include "rtnl-util.h"
return -ENOMEM;
}
+ m->kmod_ctx = kmod_new(NULL, NULL);
+ if (!m->kmod_ctx)
+ return -ENOMEM;
+
m->links = hashmap_new(uint64_hash_func, uint64_compare_func);
if (!m->links)
return -ENOMEM;
free(m->state_file);
+ kmod_unref(m->kmod_ctx);
udev_monitor_unref(m->udev_monitor);
udev_unref(m->udev);
sd_bus_unref(m->bus);
return 0;
}
-static int manager_rtnl_process_address(sd_rtnl *rtnl, sd_rtnl_message *message, void *userdata) {
- Manager *m = userdata;
- Link *link = NULL;
- uint16_t type;
- _cleanup_address_free_ Address *address = NULL;
- char buf[INET6_ADDRSTRLEN];
- int r, ifindex;
-
- assert(rtnl);
- assert(message);
- assert(m);
-
- r = sd_rtnl_message_get_type(message, &type);
- if (r < 0) {
- log_warning("rtnl: could not get message type");
- return 0;
- }
-
- r = sd_rtnl_message_addr_get_ifindex(message, &ifindex);
- if (r < 0 || ifindex <= 0) {
- log_warning("rtnl: received address message without valid ifindix, ignoring");
- return 0;
- } else {
- r = link_get(m, ifindex, &link);
- if (r < 0 || !link) {
- log_warning("rtnl: received address for non-existing link, ignoring");
- return 0;
- }
- }
-
- r = address_new_dynamic(&address);
- if (r < 0)
- return 0;
-
- r = sd_rtnl_message_addr_get_family(message, &address->family);
- if (r < 0 || !IN_SET(address->family, AF_INET, AF_INET6)) {
- log_warning("rtnl: received address with invalid family, ignoring");
- return 0;
- }
-
- r = sd_rtnl_message_addr_get_prefixlen(message, &address->prefixlen);
- if (r < 0) {
- log_warning("rtnl: recevied address with invalid prefixlen, ignoring");
- return 0;
- }
-
- switch (address->family) {
- case AF_INET:
- r = sd_rtnl_message_read_in_addr(message, IFA_LOCAL, &address->in_addr.in);
- if (r < 0) {
- log_warning("rtnl: received address without valid address, ignoring");
- return 0;
- }
-
- break;
-
- case AF_INET6:
- r = sd_rtnl_message_read_in6_addr(message, IFA_ADDRESS, &address->in_addr.in6);
- if (r < 0) {
- log_warning("rtnl: received address without valid address, ignoring");
- return 0;
- }
-
- break;
-
- default:
- assert_not_reached("invalid address family");
- }
-
- if (!inet_ntop(address->family, &address->in_addr, buf, INET6_ADDRSTRLEN)) {
- log_warning("could not print address");
- return 0;
- }
-
- switch (type) {
- case RTM_NEWADDR:
- log_info("added address: %s/%u to ifindex %d", buf,
- address->prefixlen, ifindex);
- break;
-
- case RTM_DELADDR:
- log_info("removed address: %s/%u from ifindex %d", buf,
- address->prefixlen, ifindex);
- break;
- default:
- assert_not_reached("Received invalid RTNL message type");
- }
-
- return 1;
-}
-
static int manager_rtnl_process_link(sd_rtnl *rtnl, sd_rtnl_message *message, void *userdata) {
Manager *m = userdata;
Link *link = NULL;
if (r < 0)
return r;
- r = sd_rtnl_add_match(m->rtnl, RTM_NEWADDR, &manager_rtnl_process_address, m);
+ r = sd_rtnl_add_match(m->rtnl, RTM_NEWADDR, &link_rtnl_process_address, m);
if (r < 0)
return r;
- r = sd_rtnl_add_match(m->rtnl, RTM_DELADDR, &manager_rtnl_process_address, m);
+ r = sd_rtnl_add_match(m->rtnl, RTM_DELADDR, &link_rtnl_process_address, m);
if (r < 0)
return r;
return 0;
}
-static void append_dns(FILE *f, struct in_addr *dns, unsigned char family, unsigned *count) {
- char buf[INET6_ADDRSTRLEN];
- const char *address;
-
- address = inet_ntop(family, dns, buf, INET6_ADDRSTRLEN);
- if (!address) {
- log_warning("Invalid DNS address. Ignoring.");
- return;
- }
-
- if (*count == MAXNS)
- fputs("# Too many DNS servers configured, the following entries "
- "will be ignored\n", f);
-
- fprintf(f, "nameserver %s\n", address);
-
- (*count) ++;
-}
-
-int manager_update_resolv_conf(Manager *m) {
- _cleanup_free_ char *temp_path = NULL;
- _cleanup_fclose_ FILE *f = NULL;
- Link *link;
- Iterator i;
- unsigned count = 0;
- const char *domainname = NULL;
- int r;
-
- assert(m);
-
- r = fopen_temporary("/run/systemd/network/resolv.conf", &f, &temp_path);
- if (r < 0)
- return r;
-
- fchmod(fileno(f), 0644);
-
- fputs("# This file is managed by systemd-networkd(8). Do not edit.\n#\n"
- "# Third party programs must not access this file directly, but\n"
- "# only through the symlink at /etc/resolv.conf. To manage\n"
- "# resolv.conf(5) in a different way, replace the symlink by a\n"
- "# static file or a different symlink.\n\n", f);
-
- HASHMAP_FOREACH(link, m->links, i) {
- if (link->dhcp_lease) {
- struct in_addr *nameservers;
- size_t nameservers_size;
-
- if (link->network->dhcp_dns) {
- r = sd_dhcp_lease_get_dns(link->dhcp_lease, &nameservers, &nameservers_size);
- if (r >= 0) {
- unsigned j;
-
- for (j = 0; j < nameservers_size; j++)
- append_dns(f, &nameservers[j], AF_INET, &count);
- }
- }
-
- if (link->network->dhcp_domainname && !domainname) {
- r = sd_dhcp_lease_get_domainname(link->dhcp_lease, &domainname);
- if (r >= 0)
- fprintf(f, "domain %s\n", domainname);
- }
- }
- }
-
- HASHMAP_FOREACH(link, m->links, i) {
- if (link->network && link->network->dns) {
- Address *address;
- Iterator j;
-
- SET_FOREACH(address, link->network->dns, j) {
- append_dns(f, &address->in_addr.in,
- address->family, &count);
- }
- }
- }
-
- fflush(f);
-
- if (ferror(f) || rename(temp_path, "/run/systemd/network/resolv.conf") < 0) {
- r = -errno;
- unlink("/run/systemd/network/resolv.conf");
- unlink(temp_path);
- return r;
- }
-
- return 0;
-}
-
int manager_save(Manager *m) {
Link *link;
Iterator i;
~ianmdlvl / elogind.git / blobdiff