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network: support matching based on wifi interfece type

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This commit is contained in:
Yu Watanabe 2019-10-25 16:29:23 +09:00
parent df7c4eb62a
commit 78404d22cc
17 changed files with 6648 additions and 30 deletions
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12
man/systemd.network.xml
View File

@ -153,6 +153,18 @@
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><varname>WirelessType=</varname></term>
<listitem>
<para>A whitespace-separated list of wireless network type. Supported values are
<literal>ad-hoc</literal>, <literal>station</literal>, <literal>ap</literal>,
<literal>ap-vlan</literal>, <literal>wds</literal>, <literal>monitor</literal>,
<literal>mesh-point</literal>, <literal>p2p-client</literal>, <literal>p2p-go</literal>,
<literal>p2p-device</literal>, <literal>ocb</literal>, and <literal>nan</literal>. If the
list is prefixed with a "!", the test is inverted.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><varname>SSID=</varname></term>
<listitem>

23
src/libsystemd-network/network-internal.c
View File

@ -20,6 +20,7 @@
#include "parse-util.h"
#include "siphash24.h"
#include "socket-util.h"
#include "string-table.h"
#include "string-util.h"
#include "strv.h"
#include "utf8.h"
@ -136,17 +137,36 @@ static int net_condition_test_property(char * const *match_property, sd_device *
return true;
}
static const char *const wifi_iftype_table[NL80211_IFTYPE_MAX+1] = {
[NL80211_IFTYPE_ADHOC] = "ad-hoc",
[NL80211_IFTYPE_STATION] = "station",
[NL80211_IFTYPE_AP] = "ap",
[NL80211_IFTYPE_AP_VLAN] = "ap-vlan",
[NL80211_IFTYPE_WDS] = "wds",
[NL80211_IFTYPE_MONITOR] = "monitor",
[NL80211_IFTYPE_MESH_POINT] = "mesh-point",
[NL80211_IFTYPE_P2P_CLIENT] = "p2p-client",
[NL80211_IFTYPE_P2P_GO] = "p2p-go",
[NL80211_IFTYPE_P2P_DEVICE] = "p2p-device",
[NL80211_IFTYPE_OCB] = "ocb",
[NL80211_IFTYPE_NAN] = "nan",
};
DEFINE_PRIVATE_STRING_TABLE_LOOKUP_TO_STRING(wifi_iftype, enum nl80211_iftype);
bool net_match_config(Set *match_mac,
char * const *match_paths,
char * const *match_drivers,
char * const *match_types,
char * const *match_names,
char * const *match_property,
char * const *match_wifi_iftype,
char * const *match_ssid,
Set *match_bssid,
sd_device *device,
const struct ether_addr *dev_mac,
const char *dev_name,
enum nl80211_iftype wifi_iftype,
const char *ssid,
const struct ether_addr *bssid) {
@ -182,6 +202,9 @@ bool net_match_config(Set *match_mac,
if (!net_condition_test_property(match_property, device))
return false;
if (!net_condition_test_strv(match_wifi_iftype, wifi_iftype_to_string(wifi_iftype)))
return false;
if (!net_condition_test_strv(match_ssid, ssid))
return false;

3
src/libsystemd-network/network-internal.h
View File

@ -1,6 +1,7 @@
/* SPDX-License-Identifier: LGPL-2.1+ */
#pragma once
#include <linux/nl80211.h>
#include <stdbool.h>
#include "sd-device.h"
@ -20,11 +21,13 @@ bool net_match_config(Set *match_mac,
char * const *match_type,
char * const *match_name,
char * const *match_property,
char * const *match_wifi_iftype,
char * const *match_ssid,
Set *match_bssid,
sd_device *device,
const struct ether_addr *dev_mac,
const char *dev_name,
enum nl80211_iftype wifi_iftype,
const char *ssid,
const struct ether_addr *bssid);

1
src/libsystemd/sd-netlink/netlink-types.c
View File

@ -993,6 +993,7 @@ static const NLType genl_nl80211_types[] = {
[NL80211_ATTR_IFINDEX] = { .type = NETLINK_TYPE_U32 },
[NL80211_ATTR_MAC] = { .type = NETLINK_TYPE_ETHER_ADDR },
[NL80211_ATTR_SSID] = { .type = NETLINK_TYPE_STRING },
[NL80211_ATTR_IFTYPE] = { .type = NETLINK_TYPE_U32 },
};
static const NLTypeSystem genl_nl80211_type_system = {

13
src/network/networkctl.c
View File

@ -167,6 +167,7 @@ typedef struct LinkInfo {
NetDevPort port;
/* wlan info */
enum nl80211_iftype wlan_iftype;
char *ssid;
struct ether_addr bssid;
@ -384,7 +385,7 @@ static void acquire_ether_link_info(int *fd, LinkInfo *link) {
static void acquire_wlan_link_info(LinkInfo *link) {
_cleanup_(sd_netlink_unrefp) sd_netlink *genl = NULL;
const char *type = NULL;
int r, k;
int r, k = 0;
if (link->sd_device)
(void) sd_device_get_devtype(link->sd_device, &type);
@ -399,13 +400,15 @@ static void acquire_wlan_link_info(LinkInfo *link) {
(void) sd_netlink_inc_rcvbuf(genl, RCVBUF_SIZE);
r = wifi_get_ssid(genl, link->ifindex, &link->ssid);
r = wifi_get_interface(genl, link->ifindex, &link->wlan_iftype, &link->ssid);
if (r < 0)
log_debug_errno(r, "%s: failed to query ssid: %m", link->name);
k = wifi_get_bssid(genl, link->ifindex, &link->bssid);
if (k < 0)
log_debug_errno(k, "%s: failed to query bssid: %m", link->name);
if (link->iftype == NL80211_IFTYPE_STATION) {
k = wifi_get_station(genl, link->ifindex, &link->bssid);
if (k < 0)
log_debug_errno(k, "%s: failed to query bssid: %m", link->name);
}
link->has_wlan_link_info = r > 0 || k > 0;
}

4
src/network/networkd-link.c
View File

@ -2865,7 +2865,7 @@ int link_reconfigure(Link *link, bool force) {
return 0;
r = network_get(link->manager, link->sd_device, link->ifname,
&link->mac, link->ssid, &link->bssid, &network);
&link->mac, link->wlan_iftype, link->ssid, &link->bssid, &network);
if (r == -ENOENT) {
link_enter_unmanaged(link);
return 0;
@ -2959,7 +2959,7 @@ static int link_initialized_and_synced(Link *link) {
return r;
r = network_get(link->manager, link->sd_device, link->ifname,
&link->mac, link->ssid, &link->bssid, &network);
&link->mac, link->wlan_iftype, link->ssid, &link->bssid, &network);
if (r == -ENOENT) {
link_enter_unmanaged(link);
return 0;

2
src/network/networkd-link.h
View File

@ -2,6 +2,7 @@
#pragma once
#include <endian.h>
#include <linux/nl80211.h>
#include "sd-bus.h"
#include "sd-device.h"
@ -56,6 +57,7 @@ typedef struct Link {
sd_device *sd_device;
/* wlan */
enum nl80211_iftype wlan_iftype;
char *ssid;
struct ether_addr bssid;

1
src/network/networkd-network-gperf.gperf
View File

@ -29,6 +29,7 @@ Match.MACAddress, config_parse_hwaddrs,
Match.Path, config_parse_match_strv, 0, offsetof(Network, match_path)
Match.Driver, config_parse_match_strv, 0, offsetof(Network, match_driver)
Match.Type, config_parse_match_strv, 0, offsetof(Network, match_type)
Match.WLANInterfaceType, config_parse_match_strv, 0, offsetof(Network, match_wlan_iftype)
Match.SSID, config_parse_match_strv, 0, offsetof(Network, match_ssid)
Match.BSSID, config_parse_hwaddrs, 0, offsetof(Network, match_bssid)
Match.Name, config_parse_match_ifnames, 0, offsetof(Network, match_name)

8
src/network/networkd-network.c
View File

@ -595,6 +595,7 @@ static Network *network_free(Network *network) {
strv_free(network->match_type);
strv_free(network->match_name);
strv_free(network->match_property);
strv_free(network->match_wlan_iftype);
strv_free(network->match_ssid);
set_free_free(network->match_bssid);
condition_free_list(network->conditions);
@ -701,7 +702,8 @@ int network_get_by_name(Manager *manager, const char *name, Network **ret) {
int network_get(Manager *manager, sd_device *device,
const char *ifname, const struct ether_addr *address,
const char *ssid, const struct ether_addr *bssid, Network **ret) {
enum nl80211_iftype wlan_iftype, const char *ssid, const struct ether_addr *bssid,
Network **ret) {
Network *network;
Iterator i;
@ -711,8 +713,8 @@ int network_get(Manager *manager, sd_device *device,
ORDERED_HASHMAP_FOREACH(network, manager->networks, i)
if (net_match_config(network->match_mac, network->match_path, network->match_driver,
network->match_type, network->match_name, network->match_property,
network->match_ssid, network->match_bssid,
device, address, ifname, ssid, bssid)) {
network->match_wlan_iftype, network->match_ssid, network->match_bssid,
device, address, ifname, wlan_iftype, ssid, bssid)) {
if (network->match_name && device) {
const char *attr;
uint8_t name_assign_type = NET_NAME_UNKNOWN;

5
src/network/networkd-network.h
View File

@ -1,6 +1,8 @@
/* SPDX-License-Identifier: LGPL-2.1+ */
#pragma once
#include <linux/nl80211.h>
#include "sd-bus.h"
#include "sd-device.h"
@ -64,6 +66,7 @@ struct Network {
char **match_type;
char **match_name;
char **match_property;
char **match_wlan_iftype;
char **match_ssid;
Set *match_bssid;
LIST_HEAD(Condition, conditions);
@ -291,7 +294,7 @@ int network_verify(Network *network);
int network_get_by_name(Manager *manager, const char *name, Network **ret);
int network_get(Manager *manager, sd_device *device, const char *ifname, const struct ether_addr *mac,
const char *ssid, const struct ether_addr *bssid, Network **ret);
enum nl80211_iftype wlan_iftype, const char *ssid, const struct ether_addr *bssid, Network **ret);
int network_apply(Network *network, Link *link);
void network_apply_anonymize_if_set(Network *network);

20
src/network/networkd-wifi.c
View File

@ -16,7 +16,7 @@
int wifi_get_info(Link *link) {
const char *type;
int r, s;
int r, s = 0;
assert(link);
@ -33,24 +33,26 @@ int wifi_get_info(Link *link) {
return 0;
_cleanup_free_ char *ssid = NULL;
r = wifi_get_ssid(link->manager->genl, link->ifindex, &ssid);
r = wifi_get_interface(link->manager->genl, link->ifindex, &link->wlan_iftype, &ssid);
if (r < 0)
return r;
if (r > 0 && streq_ptr(link->ssid, ssid))
r = 0;
free_and_replace(link->ssid, ssid);
struct ether_addr old_bssid = link->bssid;
s = wifi_get_bssid(link->manager->genl, link->ifindex, &link->bssid);
if (s < 0)
return s;
if (s > 0 && memcmp(&old_bssid, &link->bssid, sizeof old_bssid) == 0)
s = 0;
if (link->wlan_iftype == NL80211_IFTYPE_STATION) {
struct ether_addr old_bssid = link->bssid;
s = wifi_get_station(link->manager->genl, link->ifindex, &link->bssid);
if (s < 0)
return s;
if (s > 0 && memcmp(&old_bssid, &link->bssid, sizeof old_bssid) == 0)
s = 0;
}
if (r > 0 || s > 0) {
char buf[ETHER_ADDR_TO_STRING_MAX];
if (link->ssid)
if (link->wlan_iftype == NL80211_IFTYPE_STATION && link->ssid)
log_link_info(link, "Connected WiFi access point: %s (%s)",
link->ssid, ether_addr_to_string(&link->bssid, buf));
return 1;

2
src/network/test-network.c
View File

@ -125,7 +125,7 @@ static void test_network_get(Manager *manager, sd_device *loopback) {
/* let's assume that the test machine does not have a .network file
that applies to the loopback device... */
assert_se(network_get(manager, loopback, "lo", &mac, NULL, NULL, &network) == -ENOENT);
assert_se(network_get(manager, loopback, "lo", &mac, 0, NULL, NULL, &network) == -ENOENT);
assert_se(!network);
}

6552
src/shared/linux/nl80211.h Normal file
View File

File diff suppressed because it is too large Load Diff

21
src/shared/wifi-util.c
View File

@ -9,7 +9,7 @@
#include "netlink-util.h"
#include "wifi-util.h"
int wifi_get_ssid(sd_netlink *genl, int ifindex, char **ssid) {
int wifi_get_interface(sd_netlink *genl, int ifindex, enum nl80211_iftype *iftype, char **ssid) {
_cleanup_(sd_netlink_message_unrefp) sd_netlink_message *m = NULL, *reply = NULL;
sd_genl_family family;
int r;
@ -40,14 +40,25 @@ int wifi_get_ssid(sd_netlink *genl, int ifindex, char **ssid) {
return 0;
}
r = sd_netlink_message_read_string_strdup(reply, NL80211_ATTR_SSID, ssid);
if (r < 0 && r != -ENODATA)
return log_debug_errno(r, "Failed to get NL80211_ATTR_SSID attribute: %m");
if (iftype) {
uint32_t t;
r = sd_netlink_message_read_u32(reply, NL80211_ATTR_IFTYPE, &t);
if (r < 0)
return log_debug_errno(r, "Failed to get NL80211_ATTR_IFTYPE attribute: %m");
*iftype = t;
}
if (ssid) {
r = sd_netlink_message_read_string_strdup(reply, NL80211_ATTR_SSID, ssid);
if (r < 0 && r != -ENODATA)
return log_debug_errno(r, "Failed to get NL80211_ATTR_SSID attribute: %m");
}
return r == -ENODATA ? 0 : 1;
}
int wifi_get_bssid(sd_netlink *genl, int ifindex, struct ether_addr *bssid) {
int wifi_get_station(sd_netlink *genl, int ifindex, struct ether_addr *bssid) {
_cleanup_(sd_netlink_message_unrefp) sd_netlink_message *m = NULL, *reply = NULL;
sd_genl_family family;
int r;

6
src/shared/wifi-util.h
View File

@ -2,7 +2,9 @@
#pragma once
#include <linux/nl80211.h>
#include "netlink-util.h"
int wifi_get_ssid(sd_netlink *genl, int ifindex, char **ssid);
int wifi_get_bssid(sd_netlink *genl, int ifindex, struct ether_addr *bssid);
int wifi_get_interface(sd_netlink *genl, int ifindex, enum nl80211_iftype *iftype, char **ssid);
int wifi_get_station(sd_netlink *genl, int ifindex, struct ether_addr *bssid);

4
src/udev/net/link-config.c
View File

@ -242,8 +242,8 @@ int link_config_get(link_config_ctx *ctx, sd_device *device, link_config **ret)
LIST_FOREACH(links, link, ctx->links) {
if (net_match_config(link->match_mac, link->match_path, link->match_driver,
link->match_type, link->match_name, link->match_property, NULL, NULL,
device, NULL, NULL, NULL, NULL)) {
link->match_type, link->match_name, link->match_property, NULL, NULL, NULL,
device, NULL, NULL, 0, NULL, NULL)) {
if (link->match_name && !strv_contains(link->match_name, "*")) {
unsigned name_assign_type = NET_NAME_UNKNOWN;

1
test/fuzz/fuzz-network-parser/directives.network
View File

@ -19,6 +19,7 @@ Type=
Driver=
Architecture=
Path=
WLANInterfaceType=
SSID=
BSSID=
Name=