#include "path-util.h"
#include "networkd.h"
#include "networkd-netdev.h"
+#include "networkd-link.h"
#include "network-internal.h"
#include "libudev-private.h"
#include "udev-util.h"
#include "sd-rtnl.h"
+/* use 8 MB for receive socket kernel queue. */
+#define RCVBUF_SIZE (8*1024*1024)
+
const char* const network_dirs[] = {
"/etc/systemd/network",
"/run/systemd/network",
if (r < 0)
return r;
+ r = sd_rtnl_inc_rcvbuf(m->rtnl, RCVBUF_SIZE);
+ if (r < 0)
+ return r;
+
r = sd_bus_default_system(&m->bus);
if (r < 0 && r != -ENOENT) /* TODO: drop when we can rely on kdbus */
return r;
return -ENOMEM;
}
- m->links = hashmap_new(uint64_hash_func, uint64_compare_func);
- if (!m->links)
- return -ENOMEM;
-
- m->netdevs = hashmap_new(string_hash_func, string_compare_func);
+ m->netdevs = hashmap_new(&string_hash_ops);
if (!m->netdevs)
return -ENOMEM;
udev_unref(m->udev);
sd_bus_unref(m->bus);
sd_event_source_unref(m->udev_event_source);
- sd_event_source_unref(m->sigterm_event_source);
- sd_event_source_unref(m->sigint_event_source);
sd_event_unref(m->event);
while ((link = hashmap_first(m->links)))
assert(message);
assert(m);
+ if (sd_rtnl_message_is_error(message)) {
+ r = sd_rtnl_message_get_errno(message);
+ if (r < 0)
+ log_warning_errno(r, "rtnl: could not receive link: %m");
+
+ return 0;
+ }
+
r = sd_rtnl_message_get_type(message, &type);
if (r < 0) {
- log_warning("rtnl: could not get message type");
+ log_warning_errno(r, "rtnl: could not get message type: %m");
return 0;
}
r = sd_rtnl_message_link_get_ifindex(message, &ifindex);
- if (r < 0 || ifindex <= 0) {
- log_warning("rtnl: received link message without valid ifindex");
+ if (r < 0) {
+ log_warning_errno(r, "rtnl: could not get ifindex: %m");
+ return 0;
+ } else if (ifindex <= 0) {
+ log_warning("rtnl: received link message with invalid ifindex: %d", ifindex);
return 0;
} else
link_get(m, ifindex, &link);
r = sd_rtnl_message_read_string(message, IFLA_IFNAME, &name);
- if (r < 0 || !name) {
- log_warning("rtnl: received link message without valid ifname");
+ if (r < 0) {
+ log_warning_errno(r, "rtnl: received link message without ifname: %m");
return 0;
} else
netdev_get(m, name, &netdev);
/* link is new, so add it */
r = link_add(m, message, &link);
if (r < 0) {
- log_debug("could not add new link: %s",
- strerror(-r));
+ log_warning_errno(r, "could not add new link: %m");
return 0;
}
}
/* netdev exists, so make sure the ifindex matches */
r = netdev_set_ifindex(netdev, message);
if (r < 0) {
- log_debug("could not set ifindex on netdev");
+ log_warning_errno(r, "could not set ifindex on netdev: %m");
return 0;
}
}
int manager_rtnl_enumerate_links(Manager *m) {
_cleanup_rtnl_message_unref_ sd_rtnl_message *req = NULL, *reply = NULL;
sd_rtnl_message *link;
- int r, k;
+ int r;
assert(m);
assert(m->rtnl);
return r;
for (link = reply; link; link = sd_rtnl_message_next(link)) {
- uint16_t type;
+ int k;
- k = sd_rtnl_message_get_type(link, &type);
+ k = manager_rtnl_process_link(m->rtnl, link, m);
if (k < 0)
- return k;
+ r = k;
+ }
- if (type != RTM_NEWLINK)
- continue;
+ return r;
+}
- k = manager_rtnl_process_link(m->rtnl, link, m);
+int manager_rtnl_enumerate_addresses(Manager *m) {
+ _cleanup_rtnl_message_unref_ sd_rtnl_message *req = NULL, *reply = NULL;
+ sd_rtnl_message *addr;
+ int r;
+
+ assert(m);
+ assert(m->rtnl);
+
+ r = sd_rtnl_message_new_addr(m->rtnl, &req, RTM_GETADDR, 0, 0);
+ if (r < 0)
+ return r;
+
+ r = sd_rtnl_message_request_dump(req, true);
+ if (r < 0)
+ return r;
+
+ r = sd_rtnl_call(m->rtnl, req, 0, &reply);
+ if (r < 0)
+ return r;
+
+ for (addr = reply; addr; addr = sd_rtnl_message_next(addr)) {
+ int k;
+
+ k = link_rtnl_process_address(m->rtnl, addr, m);
if (k < 0)
r = k;
}
assert(m->udev_monitor);
r = udev_monitor_filter_add_match_subsystem_devtype(m->udev_monitor, "net", NULL);
- if (r < 0) {
- log_error("Could not add udev monitor filter: %s", strerror(-r));
- return r;
- }
+ if (r < 0)
+ return log_error_errno(r, "Could not add udev monitor filter: %m");
r = udev_monitor_enable_receiving(m->udev_monitor);
if (r < 0) {
if (r < 0)
return r;
+ r = sd_event_source_set_description(m->udev_event_source, "networkd-udev");
+ if (r < 0)
+ return r;
+
return 0;
}
return 0;
}
+static int set_put_in_addr(Set *s, const struct in_addr *address) {
+ char *p;
+ int r;
+
+ assert(s);
+
+ r = in_addr_to_string(AF_INET, (const union in_addr_union*) address, &p);
+ if (r < 0)
+ return r;
+
+ r = set_consume(s, p);
+ if (r == -EEXIST)
+ return 0;
+
+ return r;
+}
+
+static int set_put_in_addrv(Set *s, const struct in_addr *addresses, int n) {
+ int r, i, c = 0;
+
+ assert(s);
+ assert(n <= 0 || addresses);
+
+ for (i = 0; i < n; i++) {
+ r = set_put_in_addr(s, addresses+i);
+ if (r < 0)
+ return r;
+
+ c += r;
+ }
+
+ return c;
+}
+
+static void print_string_set(FILE *f, const char *field, Set *s) {
+ bool space = false;
+ Iterator i;
+ char *p;
+
+ if (set_isempty(s))
+ return;
+
+ fputs(field, f);
+
+ SET_FOREACH(p, s, i) {
+ if (space)
+ fputc(' ', f);
+ fputs(p, f);
+ space = true;
+ }
+ fputc('\n', f);
+}
+
int manager_save(Manager *m) {
+ _cleanup_set_free_free_ Set *dns = NULL, *ntp = NULL, *domains = NULL;
Link *link;
Iterator i;
_cleanup_free_ char *temp_path = NULL;
_cleanup_fclose_ FILE *f = NULL;
- LinkOperationalState operstate = LINK_OPERSTATE_UNKNOWN;
+ LinkOperationalState operstate = LINK_OPERSTATE_OFF;
const char *operstate_str;
int r;
assert(m);
assert(m->state_file);
+ /* We add all NTP and DNS server to a set, to filter out duplicates */
+ dns = set_new(&string_hash_ops);
+ if (!dns)
+ return -ENOMEM;
+
+ ntp = set_new(&string_hash_ops);
+ if (!ntp)
+ return -ENOMEM;
+
+ domains = set_new(&string_hash_ops);
+ if (!domains)
+ return -ENOMEM;
+
HASHMAP_FOREACH(link, m->links, i) {
if (link->flags & IFF_LOOPBACK)
continue;
if (link->operstate > operstate)
operstate = link->operstate;
+
+ if (!link->network)
+ continue;
+
+ /* First add the static configured entries */
+ r = set_put_strdupv(dns, link->network->dns);
+ if (r < 0)
+ return r;
+
+ r = set_put_strdupv(ntp, link->network->ntp);
+ if (r < 0)
+ return r;
+
+ r = set_put_strdupv(domains, link->network->domains);
+ if (r < 0)
+ return r;
+
+ if (!link->dhcp_lease)
+ continue;
+
+ /* Secondly, add the entries acquired via DHCP */
+ if (link->network->dhcp_dns) {
+ const struct in_addr *addresses;
+
+ r = sd_dhcp_lease_get_dns(link->dhcp_lease, &addresses);
+ if (r > 0) {
+ r = set_put_in_addrv(dns, addresses, r);
+ if (r < 0)
+ return r;
+ } else if (r < 0 && r != -ENOENT)
+ return r;
+ }
+
+ if (link->network->dhcp_ntp) {
+ const struct in_addr *addresses;
+
+ r = sd_dhcp_lease_get_ntp(link->dhcp_lease, &addresses);
+ if (r > 0) {
+ r = set_put_in_addrv(ntp, addresses, r);
+ if (r < 0)
+ return r;
+ } else if (r < 0 && r != -ENOENT)
+ return r;
+ }
+
+ if (link->network->dhcp_domains) {
+ const char *domainname;
+
+ r = sd_dhcp_lease_get_domainname(link->dhcp_lease, &domainname);
+ if (r >= 0) {
+ r = set_put_strdup(domains, domainname);
+ if (r < 0)
+ return r;
+ } else if (r != -ENOENT)
+ return r;
+ }
}
operstate_str = link_operstate_to_string(operstate);
r = fopen_temporary(m->state_file, &f, &temp_path);
if (r < 0)
- goto finish;
+ return r;
fchmod(fileno(f), 0644);
"# This is private data. Do not parse.\n"
"OPER_STATE=%s\n", operstate_str);
- fflush(f);
+ print_string_set(f, "DNS=", dns);
+ print_string_set(f, "NTP=", ntp);
+ print_string_set(f, "DOMAINS=", domains);
+
+ r = fflush_and_check(f);
+ if (r < 0)
+ goto fail;
- if (ferror(f) || rename(temp_path, m->state_file) < 0) {
+ if (rename(temp_path, m->state_file) < 0) {
r = -errno;
- unlink(m->state_file);
- unlink(temp_path);
+ goto fail;
}
-finish:
- if (r < 0)
- log_error("Failed to save network state to %s: %s", m->state_file, strerror(-r));
+ return 0;
+fail:
+ log_error_errno(r, "Failed to save network state to %s: %m", m->state_file);
+ unlink(m->state_file);
+ unlink(temp_path);
return r;
}
return 0;
}
+
+const char *address_family_boolean_to_string(AddressFamilyBoolean b) {
+ if (b == ADDRESS_FAMILY_YES ||
+ b == ADDRESS_FAMILY_NO)
+ return yes_no(b == ADDRESS_FAMILY_YES);
+
+ if (b == ADDRESS_FAMILY_IPV4)
+ return "ipv4";
+ if (b == ADDRESS_FAMILY_IPV6)
+ return "ipv6";
+
+ return NULL;
+}
+
+AddressFamilyBoolean address_family_boolean_from_string(const char *s) {
+ int r;
+
+ /* Make this a true superset of a boolean */
+
+ r = parse_boolean(s);
+ if (r > 0)
+ return ADDRESS_FAMILY_YES;
+ if (r == 0)
+ return ADDRESS_FAMILY_NO;
+
+ if (streq(s, "ipv4"))
+ return ADDRESS_FAMILY_IPV4;
+ if (streq(s, "ipv6"))
+ return ADDRESS_FAMILY_IPV6;
+
+ return _ADDRESS_FAMILY_BOOLEAN_INVALID;
+}
+
+DEFINE_CONFIG_PARSE_ENUM(config_parse_address_family_boolean, address_family_boolean, AddressFamilyBoolean, "Failed to parse option");
~ianmdlvl / elogind.git / blobdiff