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-rw-r--r--src/libsystemd/sd-rtnl/rtnl-message.c124
-rw-r--r--src/libsystemd/sd-rtnl/rtnl-types.c41
-rw-r--r--src/libsystemd/sd-rtnl/rtnl-types.h7
-rw-r--r--src/libsystemd/sd-rtnl/test-rtnl.c22
4 files changed, 170 insertions, 24 deletions
diff --git a/src/libsystemd/sd-rtnl/rtnl-message.c b/src/libsystemd/sd-rtnl/rtnl-message.c
index 14a52dfae0..276591f31b 100644
--- a/src/libsystemd/sd-rtnl/rtnl-message.c
+++ b/src/libsystemd/sd-rtnl/rtnl-message.c
@@ -609,6 +609,49 @@ int sd_rtnl_message_get_type(sd_rtnl_message *m, uint16_t *type) {
return 0;
}
+int sd_rtnl_message_get_family(sd_rtnl_message *m, int *family) {
+ assert_return(m, -EINVAL);
+ assert_return(family, -EINVAL);
+
+ assert(m->hdr);
+
+ if (rtnl_message_type_is_link(m->hdr->nlmsg_type)) {
+ struct ifinfomsg *ifi;
+
+ ifi = NLMSG_DATA(m->hdr);
+
+ *family = ifi->ifi_family;
+
+ return 0;
+ } else if (rtnl_message_type_is_route(m->hdr->nlmsg_type)) {
+ struct rtmsg *rtm;
+
+ rtm = NLMSG_DATA(m->hdr);
+
+ *family = rtm->rtm_family;
+
+ return 0;
+ } else if (rtnl_message_type_is_neigh(m->hdr->nlmsg_type)) {
+ struct ndmsg *ndm;
+
+ ndm = NLMSG_DATA(m->hdr);
+
+ *family = ndm->ndm_family;
+
+ return 0;
+ } else if (rtnl_message_type_is_addr(m->hdr->nlmsg_type)) {
+ struct ifaddrmsg *ifa;
+
+ ifa = NLMSG_DATA(m->hdr);
+
+ *family = ifa->ifa_family;
+
+ return 0;
+ }
+
+ return -ENOTSUP;
+}
+
int sd_rtnl_message_is_broadcast(sd_rtnl_message *m) {
assert_return(m, -EINVAL);
@@ -898,16 +941,37 @@ int sd_rtnl_message_open_container(sd_rtnl_message *m, unsigned short type) {
assert_return(m->n_containers < RTNL_CONTAINER_DEPTH, -ERANGE);
r = message_attribute_has_type(m, type, NLA_NESTED);
- if (r < 0)
- return r;
- else
+ if (r < 0) {
+ const NLTypeSystemUnion *type_system_union;
+ int family;
+
+ r = message_attribute_has_type(m, type, NLA_UNION);
+ if (r < 0)
+ return r;
+ size = (size_t) r;
+
+ r = sd_rtnl_message_get_family(m, &family);
+ if (r < 0)
+ return r;
+
+ r = type_system_get_type_system_union(m->container_type_system[m->n_containers], &type_system_union, type);
+ if (r < 0)
+ return r;
+
+ r = type_system_union_protocol_get_type_system(type_system_union,
+ &m->container_type_system[m->n_containers + 1],
+ family);
+ if (r < 0)
+ return r;
+ } else {
size = (size_t)r;
- r = type_system_get_type_system(m->container_type_system[m->n_containers],
- &m->container_type_system[m->n_containers + 1],
- type);
- if (r < 0)
- return r;
+ r = type_system_get_type_system(m->container_type_system[m->n_containers],
+ &m->container_type_system[m->n_containers + 1],
+ type);
+ if (r < 0)
+ return r;
+ }
r = add_rtattr(m, type | NLA_F_NESTED, NULL, size);
if (r < 0)
@@ -1181,7 +1245,6 @@ int sd_rtnl_message_enter_container(sd_rtnl_message *m, unsigned short type) {
return r;
} else if (nl_type->type == NLA_UNION) {
const NLTypeSystemUnion *type_system_union;
- const char *key;
r = type_system_get_type_system_union(m->container_type_system[m->n_containers],
&type_system_union,
@@ -1189,15 +1252,42 @@ int sd_rtnl_message_enter_container(sd_rtnl_message *m, unsigned short type) {
if (r < 0)
return r;
- r = sd_rtnl_message_read_string(m, type_system_union->match, &key);
- if (r < 0)
- return r;
+ switch (type_system_union->match_type) {
+ case NL_MATCH_SIBLING:
+ {
+ const char *key;
- r = type_system_union_get_type_system(type_system_union,
- &type_system,
- key);
- if (r < 0)
- return r;
+ r = sd_rtnl_message_read_string(m, type_system_union->match, &key);
+ if (r < 0)
+ return r;
+
+ r = type_system_union_get_type_system(type_system_union,
+ &type_system,
+ key);
+ if (r < 0)
+ return r;
+
+ break;
+ }
+ case NL_MATCH_PROTOCOL:
+ {
+ int family;
+
+ r = sd_rtnl_message_get_family(m, &family);
+ if (r < 0)
+ return r;
+
+ r = type_system_union_protocol_get_type_system(type_system_union,
+ &type_system,
+ family);
+ if (r < 0)
+ return r;
+
+ break;
+ }
+ default:
+ assert_not_reached("sd-rtnl: invalid type system union type");
+ }
} else
return -EINVAL;
diff --git a/src/libsystemd/sd-rtnl/rtnl-types.c b/src/libsystemd/sd-rtnl/rtnl-types.c
index d4abe4cc3b..4ef698a7f5 100644
--- a/src/libsystemd/sd-rtnl/rtnl-types.c
+++ b/src/libsystemd/sd-rtnl/rtnl-types.c
@@ -224,6 +224,7 @@ static const NLTypeSystemUnion rtnl_link_info_data_type_system_union = {
.num = _NL_UNION_LINK_INFO_DATA_MAX,
.lookup = nl_union_link_info_data_from_string,
.type_systems = rtnl_link_info_data_type_systems,
+ .match_type = NL_MATCH_SIBLING,
.match = IFLA_INFO_KIND,
};
@@ -242,7 +243,7 @@ static const NLTypeSystem rtnl_link_info_type_system = {
.types = rtnl_link_info_types,
};
-static const struct NLType rtnl_bridge_port_types[IFLA_BRPORT_MAX + 1] = {
+static const struct NLType rtnl_prot_info_bridge_port_types[IFLA_BRPORT_MAX + 1] = {
[IFLA_BRPORT_STATE] = { .type = NLA_U8 },
[IFLA_BRPORT_COST] = { .type = NLA_U32 },
[IFLA_BRPORT_PRIORITY] = { .type = NLA_U16 },
@@ -253,9 +254,15 @@ static const struct NLType rtnl_bridge_port_types[IFLA_BRPORT_MAX + 1] = {
[IFLA_BRPORT_UNICAST_FLOOD] = { .type = NLA_U8 },
};
-static const NLTypeSystem rtnl_bridge_port_type_system = {
- .max = ELEMENTSOF(rtnl_bridge_port_types) - 1,
- .types = rtnl_bridge_port_types,
+static const NLTypeSystem rtnl_prot_info_type_systems[AF_MAX] = {
+ [AF_BRIDGE] = { .max = ELEMENTSOF(rtnl_prot_info_bridge_port_types) - 1,
+ .types = rtnl_prot_info_bridge_port_types },
+};
+
+static const NLTypeSystemUnion rtnl_prot_info_type_system_union = {
+ .num = AF_MAX,
+ .type_systems = rtnl_prot_info_type_systems,
+ .match_type = NL_MATCH_PROTOCOL,
};
static const NLType rtnl_link_types[IFLA_MAX + 1 ] = {
@@ -273,9 +280,8 @@ static const NLType rtnl_link_types[IFLA_MAX + 1 ] = {
[IFLA_MASTER] = { .type = NLA_U32 },
/*
[IFLA_WIRELESS],
- [IFLA_PROTINFO],
*/
- [IFLA_PROTINFO] = { .type = NLA_NESTED, .type_system = &rtnl_bridge_port_type_system },
+ [IFLA_PROTINFO] = { .type = NLA_UNION, .type_system_union = &rtnl_prot_info_type_system_union },
[IFLA_TXQLEN] = { .type = NLA_U32 },
/*
[IFLA_MAP] = { .len = sizeof(struct rtnl_link_ifmap) },
@@ -463,6 +469,7 @@ int type_system_union_get_type_system(const NLTypeSystemUnion *type_system_union
int type;
assert(type_system_union);
+ assert_return(type_system_union->match_type == NL_MATCH_SIBLING, -EINVAL);
assert(type_system_union->lookup);
assert(type_system_union->type_systems);
assert(ret);
@@ -478,3 +485,25 @@ int type_system_union_get_type_system(const NLTypeSystemUnion *type_system_union
return 0;
}
+
+int type_system_union_protocol_get_type_system(const NLTypeSystemUnion *type_system_union, const NLTypeSystem **ret, uint16_t protocol) {
+ const NLTypeSystem *type_system;
+
+ assert(type_system_union);
+ assert(type_system_union->type_systems);
+ assert(ret);
+ assert_return(type_system_union->match_type == NL_MATCH_PROTOCOL, -EINVAL);
+ assert_return(protocol < type_system_union->num, -EINVAL);
+
+ if (protocol >= type_system_union->num)
+ return -ENOTSUP;
+
+ type_system = &type_system_union->type_systems[protocol];
+
+ if (!type_system)
+ return -ENOTSUP;
+
+ *ret = type_system;
+
+ return 0;
+}
diff --git a/src/libsystemd/sd-rtnl/rtnl-types.h b/src/libsystemd/sd-rtnl/rtnl-types.h
index 9c0dc30331..1ab9444987 100644
--- a/src/libsystemd/sd-rtnl/rtnl-types.h
+++ b/src/libsystemd/sd-rtnl/rtnl-types.h
@@ -36,12 +36,18 @@ enum {
NLA_UNION,
};
+typedef enum NLMatchType {
+ NL_MATCH_SIBLING,
+ NL_MATCH_PROTOCOL,
+} NLMatchType;
+
typedef struct NLTypeSystemUnion NLTypeSystemUnion;
typedef struct NLTypeSystem NLTypeSystem;
typedef struct NLType NLType;
struct NLTypeSystemUnion {
int num;
+ NLMatchType match_type;
uint16_t match;
int (*lookup)(const char *);
const NLTypeSystem *type_systems;
@@ -63,6 +69,7 @@ int type_system_get_type(const NLTypeSystem *type_system, const NLType **ret, ui
int type_system_get_type_system(const NLTypeSystem *type_system, const NLTypeSystem **ret, uint16_t type);
int type_system_get_type_system_union(const NLTypeSystem *type_system, const NLTypeSystemUnion **ret, uint16_t type);
int type_system_union_get_type_system(const NLTypeSystemUnion *type_system_union, const NLTypeSystem **ret, const char *key);
+int type_system_union_protocol_get_type_system(const NLTypeSystemUnion *type_system_union, const NLTypeSystem **ret, uint16_t protocol);
typedef enum NLUnionLinkInfoData {
NL_UNION_LINK_INFO_DATA_BOND,
diff --git a/src/libsystemd/sd-rtnl/test-rtnl.c b/src/libsystemd/sd-rtnl/test-rtnl.c
index ed60b3cb45..02f7a8e38a 100644
--- a/src/libsystemd/sd-rtnl/test-rtnl.c
+++ b/src/libsystemd/sd-rtnl/test-rtnl.c
@@ -31,8 +31,26 @@
#include "missing.h"
#include "rtnl-internal.h"
+static void test_message_link_bridge(sd_rtnl *rtnl) {
+ _cleanup_rtnl_message_unref_ sd_rtnl_message *message = NULL;
+ uint32_t cost;
+
+ assert_se(sd_rtnl_message_new_link(rtnl, &message, RTM_NEWLINK, 1) >= 0);
+ assert_se(sd_rtnl_message_link_set_family(message, PF_BRIDGE) >= 0);
+ assert_se(sd_rtnl_message_open_container(message, IFLA_PROTINFO) >= 0);
+ assert_se(sd_rtnl_message_append_u32(message, IFLA_BRPORT_COST, 10) >= 0);
+ assert_se(sd_rtnl_message_close_container(message) >= 0);
+
+ assert_se(sd_rtnl_message_rewind(message) >= 0);
+
+ assert_se(sd_rtnl_message_enter_container(message, IFLA_PROTINFO) >= 0);
+ assert_se(sd_rtnl_message_read_u32(message, IFLA_BRPORT_COST, &cost) >= 0);
+ assert_se(cost == 10);
+ assert_se(sd_rtnl_message_exit_container(message) >= 0);
+}
+
static void test_link_configure(sd_rtnl *rtnl, int ifindex) {
- _cleanup_rtnl_message_unref_ sd_rtnl_message *message;
+ _cleanup_rtnl_message_unref_ sd_rtnl_message *message = NULL;
const char *mac = "98:fe:94:3f:c6:18", *name = "test";
char buffer[ETHER_ADDR_TO_STRING_MAX];
unsigned int mtu = 1450, mtu_out;
@@ -394,6 +412,8 @@ int main(void) {
test_get_addresses(rtnl);
+ test_message_link_bridge(rtnl);
+
assert_se(sd_rtnl_message_new_link(rtnl, &m, RTM_GETLINK, if_loopback) >= 0);
assert_se(m);
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-12-22 14:44:11 +0000