summaryrefslogtreecommitdiff
path: root/src/network
diff options
context:
space:
mode:
Diffstat (limited to 'src/network')
-rw-r--r--src/network/networkctl.c220
1 files changed, 81 insertions, 139 deletions
diff --git a/src/network/networkctl.c b/src/network/networkctl.c
index d19bf131cd..144e52cbfa 100644
--- a/src/network/networkctl.c
+++ b/src/network/networkctl.c
@@ -110,6 +110,11 @@ typedef struct LinkInfo {
char name[IFNAMSIZ+1];
int ifindex;
unsigned short iftype;
+ struct ether_addr mac_address;
+ uint32_t mtu;
+
+ bool has_mac_address:1;
+ bool has_mtu:1;
} LinkInfo;
static int link_info_compare(const void *a, const void *b) {
@@ -119,10 +124,10 @@ static int link_info_compare(const void *a, const void *b) {
}
static int decode_link_one(sd_netlink_message *m, LinkInfo *info) {
+ static const struct ether_addr null_address = {};
const char *name;
- unsigned short iftype;
uint16_t type;
- int ifindex, r;
+ int r;
assert(m);
assert(info);
@@ -134,7 +139,7 @@ static int decode_link_one(sd_netlink_message *m, LinkInfo *info) {
if (type != RTM_NEWLINK)
return 0;
- r = sd_rtnl_message_link_get_ifindex(m, &ifindex);
+ r = sd_rtnl_message_link_get_ifindex(m, &info->ifindex);
if (r < 0)
return r;
@@ -142,13 +147,19 @@ static int decode_link_one(sd_netlink_message *m, LinkInfo *info) {
if (r < 0)
return r;
- r = sd_rtnl_message_link_get_type(m, &iftype);
+ r = sd_rtnl_message_link_get_type(m, &info->iftype);
if (r < 0)
return r;
strncpy(info->name, name, sizeof(info->name));
- info->ifindex = ifindex;
- info->iftype = iftype;
+
+ info->has_mac_address =
+ sd_netlink_message_read_ether_addr(m, IFLA_ADDRESS, &info->mac_address) >= 0 &&
+ memcmp(&info->mac_address, &null_address, sizeof(struct ether_addr)) != 0;
+
+ info->has_mtu =
+ sd_netlink_message_read_u32(m, IFLA_MTU, &info->mtu) &&
+ info->mtu > 0;
return 1;
}
@@ -209,23 +220,19 @@ static void setup_state_to_color(const char *state, const char **on, const char
*on = *off = "";
}
-static int acquire_link_info_strv(char **l, LinkInfo **ret) {
+static int acquire_link_info_strv(sd_netlink *rtnl, char **l, LinkInfo **ret) {
_cleanup_free_ LinkInfo *links = NULL;
- _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL;
char **i;
size_t c = 0;
int r;
+ assert(rtnl);
assert(ret);
links = new(LinkInfo, strv_length(l));
if (!links)
return log_oom();
- r = sd_netlink_open(&rtnl);
- if (r < 0)
- return log_error_errno(r, "Failed to connect to netlink: %m");
-
STRV_FOREACH(i, l) {
_cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL, *reply = NULL;
int ifindex;
@@ -261,18 +268,13 @@ static int acquire_link_info_strv(char **l, LinkInfo **ret) {
return (int) c;
}
-static int acquire_link_info_all(LinkInfo **ret) {
+static int acquire_link_info_all(sd_netlink *rtnl, LinkInfo **ret) {
_cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL, *reply = NULL;
- _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL;
-
int r;
+ assert(rtnl);
assert(ret);
- r = sd_netlink_open(&rtnl);
- if (r < 0)
- return log_error_errno(r, "Failed to connect to netlink: %m");
-
r = sd_rtnl_message_new_link(rtnl, &req, RTM_GETLINK, 0);
if (r < 0)
return rtnl_log_create_error(r);
@@ -293,13 +295,18 @@ static int acquire_link_info_all(LinkInfo **ret) {
}
static int list_links(int argc, char *argv[], void *userdata) {
+ _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL;
_cleanup_free_ LinkInfo *links = NULL;
- int c, i;
+ int c, i, r;
+
+ r = sd_netlink_open(&rtnl);
+ if (r < 0)
+ return log_error_errno(r, "Failed to connect to netlink: %m");
if (argc > 1)
- c = acquire_link_info_strv(argv + 1, &links);
+ c = acquire_link_info_strv(rtnl, argv + 1, &links);
else
- c = acquire_link_info_all(&links);
+ c = acquire_link_info_all(rtnl, &links);
if (c < 0)
return c;
@@ -345,7 +352,7 @@ static int list_links(int argc, char *argv[], void *userdata) {
}
/* IEEE Organizationally Unique Identifier vendor string */
-static int ieee_oui(sd_hwdb *hwdb, struct ether_addr *mac, char **ret) {
+static int ieee_oui(sd_hwdb *hwdb, const struct ether_addr *mac, char **ret) {
const char *description;
char modalias[strlen("OUI:XXYYXXYYXXYY") + 1], *desc;
int r;
@@ -590,10 +597,10 @@ static void dump_list(const char *prefix, char **l) {
static int link_status_one(
sd_netlink *rtnl,
sd_hwdb *hwdb,
- const char *name) {
+ const LinkInfo *info) {
+
_cleanup_strv_free_ char **dns = NULL, **ntp = NULL, **search_domains = NULL, **route_domains = NULL;
_cleanup_free_ char *setup_state = NULL, *operational_state = NULL, *tz = NULL;
- _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL, *reply = NULL;
_cleanup_(sd_device_unrefp) sd_device *d = NULL;
char devid[2 + DECIMAL_STR_MAX(int)];
_cleanup_free_ char *t = NULL, *network = NULL;
@@ -602,72 +609,23 @@ static int link_status_one(
*on_color_setup, *off_color_setup;
_cleanup_strv_free_ char **carrier_bound_to = NULL;
_cleanup_strv_free_ char **carrier_bound_by = NULL;
- struct ether_addr e;
- unsigned short iftype;
- int r, ifindex;
- bool have_mac;
- uint32_t mtu;
+ int r;
assert(rtnl);
- assert(name);
-
- if (parse_ifindex(name, &ifindex) >= 0)
- r = sd_rtnl_message_new_link(rtnl, &req, RTM_GETLINK, ifindex);
- else {
- r = sd_rtnl_message_new_link(rtnl, &req, RTM_GETLINK, 0);
- if (r < 0)
- return rtnl_log_create_error(r);
-
- r = sd_netlink_message_append_string(req, IFLA_IFNAME, name);
- }
- if (r < 0)
- return rtnl_log_create_error(r);
-
- r = sd_netlink_call(rtnl, req, 0, &reply);
- if (r < 0)
- return log_error_errno(r, "Failed to query link: %m");
-
- r = sd_rtnl_message_link_get_ifindex(reply, &ifindex);
- if (r < 0)
- return rtnl_log_parse_error(r);
-
- r = sd_netlink_message_read_string(reply, IFLA_IFNAME, &name);
- if (r < 0)
- return rtnl_log_parse_error(r);
-
- r = sd_rtnl_message_link_get_type(reply, &iftype);
- if (r < 0)
- return rtnl_log_parse_error(r);
-
- have_mac = sd_netlink_message_read_ether_addr(reply, IFLA_ADDRESS, &e) >= 0;
- if (have_mac) {
- const uint8_t *p;
- bool all_zeroes = true;
-
- for (p = (uint8_t*) &e; p < (uint8_t*) &e + sizeof(e); p++)
- if (*p != 0) {
- all_zeroes = false;
- break;
- }
-
- if (all_zeroes)
- have_mac = false;
- }
-
- (void) sd_netlink_message_read_u32(reply, IFLA_MTU, &mtu);
+ assert(info);
- (void) sd_network_link_get_operational_state(ifindex, &operational_state);
+ (void) sd_network_link_get_operational_state(info->ifindex, &operational_state);
operational_state_to_color(operational_state, &on_color_operational, &off_color_operational);
- (void) sd_network_link_get_setup_state(ifindex, &setup_state);
+ (void) sd_network_link_get_setup_state(info->ifindex, &setup_state);
setup_state_to_color(setup_state, &on_color_setup, &off_color_setup);
- (void) sd_network_link_get_dns(ifindex, &dns);
- (void) sd_network_link_get_search_domains(ifindex, &search_domains);
- (void) sd_network_link_get_route_domains(ifindex, &route_domains);
- (void) sd_network_link_get_ntp(ifindex, &ntp);
+ (void) sd_network_link_get_dns(info->ifindex, &dns);
+ (void) sd_network_link_get_search_domains(info->ifindex, &search_domains);
+ (void) sd_network_link_get_route_domains(info->ifindex, &route_domains);
+ (void) sd_network_link_get_ntp(info->ifindex, &ntp);
- sprintf(devid, "n%i", ifindex);
+ sprintf(devid, "n%i", info->ifindex);
(void) sd_device_new_from_device_id(&d, devid);
@@ -685,14 +643,14 @@ static int link_status_one(
(void) sd_device_get_property_value(d, "ID_MODEL", &model);
}
- link_get_type_string(iftype, d, &t);
+ link_get_type_string(info->iftype, d, &t);
- sd_network_link_get_network_file(ifindex, &network);
+ sd_network_link_get_network_file(info->ifindex, &network);
- sd_network_link_get_carrier_bound_to(ifindex, &carrier_bound_to);
- sd_network_link_get_carrier_bound_by(ifindex, &carrier_bound_by);
+ sd_network_link_get_carrier_bound_to(info->ifindex, &carrier_bound_to);
+ sd_network_link_get_carrier_bound_by(info->ifindex, &carrier_bound_by);
- printf("%s%s%s %i: %s\n", on_color_operational, draw_special_char(DRAW_BLACK_CIRCLE), off_color_operational, ifindex, name);
+ printf("%s%s%s %i: %s\n", on_color_operational, draw_special_char(DRAW_BLACK_CIRCLE), off_color_operational, info->ifindex, info->name);
printf(" Link File: %s\n"
" Network File: %s\n"
@@ -713,23 +671,23 @@ static int link_status_one(
if (model)
printf(" Model: %s\n", model);
- if (have_mac) {
+ if (info->has_mac_address) {
_cleanup_free_ char *description = NULL;
char ea[ETHER_ADDR_TO_STRING_MAX];
- ieee_oui(hwdb, &e, &description);
+ ieee_oui(hwdb, &info->mac_address, &description);
if (description)
- printf(" HW Address: %s (%s)\n", ether_addr_to_string(&e, ea), description);
+ printf(" HW Address: %s (%s)\n", ether_addr_to_string(&info->mac_address, ea), description);
else
- printf(" HW Address: %s\n", ether_addr_to_string(&e, ea));
+ printf(" HW Address: %s\n", ether_addr_to_string(&info->mac_address, ea));
}
- if (mtu > 0)
- printf(" MTU: %u\n", mtu);
+ if (info->has_mtu)
+ printf(" MTU: %u\n", info->mtu);
- dump_addresses(rtnl, " Address: ", ifindex);
- dump_gateways(rtnl, hwdb, " Gateway: ", ifindex);
+ dump_addresses(rtnl, " Address: ", info->ifindex);
+ dump_gateways(rtnl, hwdb, " Gateway: ", info->ifindex);
dump_list(" DNS: ", dns);
dump_list(" Search Domains: ", search_domains);
@@ -740,7 +698,7 @@ static int link_status_one(
dump_list("Carrier Bound To: ", carrier_bound_to);
dump_list("Carrier Bound By: ", carrier_bound_by);
- (void) sd_network_link_get_timezone(ifindex, &tz);
+ (void) sd_network_link_get_timezone(info->ifindex, &tz);
if (tz)
printf(" Time Zone: %s", tz);
@@ -780,10 +738,10 @@ static int system_status(sd_netlink *rtnl, sd_hwdb *hwdb) {
}
static int link_status(int argc, char *argv[], void *userdata) {
- _cleanup_(sd_hwdb_unrefp) sd_hwdb *hwdb = NULL;
_cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL;
- char **name;
- int r;
+ _cleanup_(sd_hwdb_unrefp) sd_hwdb *hwdb = NULL;
+ _cleanup_free_ LinkInfo *links = NULL;
+ int r, c, i;
pager_open_if_enabled();
@@ -795,43 +753,20 @@ static int link_status(int argc, char *argv[], void *userdata) {
if (r < 0)
log_debug_errno(r, "Failed to open hardware database: %m");
- if (argc <= 1 && !arg_all)
+ if (arg_all)
+ c = acquire_link_info_all(rtnl, &links);
+ else if (argc <= 1)
return system_status(rtnl, hwdb);
+ else
+ c = acquire_link_info_strv(rtnl, argv + 1, &links);
+ if (c < 0)
+ return c;
- if (arg_all) {
- _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL, *reply = NULL;
- _cleanup_free_ LinkInfo *links = NULL;
- int c, i;
-
- r = sd_rtnl_message_new_link(rtnl, &req, RTM_GETLINK, 0);
- if (r < 0)
- return rtnl_log_create_error(r);
-
- r = sd_netlink_message_request_dump(req, true);
- if (r < 0)
- return rtnl_log_create_error(r);
-
- r = sd_netlink_call(rtnl, req, 0, &reply);
- if (r < 0)
- return log_error_errno(r, "Failed to enumerate links: %m");
-
- c = decode_and_sort_links(reply, &links);
- if (c < 0)
- return rtnl_log_parse_error(c);
-
- for (i = 0; i < c; i++) {
- if (i > 0)
- fputc('\n', stdout);
-
- link_status_one(rtnl, hwdb, links[i].name);
- }
- } else {
- STRV_FOREACH(name, argv + 1) {
- if (name != argv + 1)
- fputc('\n', stdout);
+ for (i = 0; i < c; i++) {
+ if (i > 0)
+ fputc('\n', stdout);
- link_status_one(rtnl, hwdb, *name);
- }
+ link_status_one(rtnl, hwdb, links + i);
}
return 0;
@@ -856,13 +791,18 @@ static char *lldp_capabilities_to_string(uint16_t x) {
}
static int link_lldp_status(int argc, char *argv[], void *userdata) {
+ _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL;
_cleanup_free_ LinkInfo *links = NULL;
- int i, r, c, j;
+ int i, r, c, m = 0;
+
+ r = sd_netlink_open(&rtnl);
+ if (r < 0)
+ return log_error_errno(r, "Failed to connect to netlink: %m");
if (argc > 1)
- c = acquire_link_info_strv(argv + 1, &links);
+ c = acquire_link_info_strv(rtnl, argv + 1, &links);
else
- c = acquire_link_info_all(&links);
+ c = acquire_link_info_all(rtnl, &links);
if (c < 0)
return c;
@@ -877,7 +817,7 @@ static int link_lldp_status(int argc, char *argv[], void *userdata) {
"PORT ID",
"PORT DESCRIPTION");
- for (i = j = 0; i < c; i++) {
+ for (i = 0; i < c; i++) {
_cleanup_fclose_ FILE *f = NULL;
_cleanup_free_ char *p = NULL;
@@ -939,6 +879,8 @@ static int link_lldp_status(int argc, char *argv[], void *userdata) {
strna(capabilities),
strna(port_id),
strna(port_description));
+
+ m++;
}
}
@@ -947,7 +889,7 @@ static int link_lldp_status(int argc, char *argv[], void *userdata) {
"o - Other; p - Repeater; b - Bridge; w - WLAN Access Point; r - Router;\n"
"t - Telephone; d - DOCSIS cable device; a - Station; c - Customer VLAN;\n"
"s - Service VLAN, m - Two-port MAC Relay (TPMR)\n\n"
- "%i neighbors listed.\n", j);
+ "%i neighbors listed.\n", m);
return 0;
}
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-17 07:57:57 +0000