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Diffstat (limited to 'src/libsystemd/sd-netlink')
-rw-r--r--src/libsystemd/sd-netlink/netlink-internal.h8
-rw-r--r--src/libsystemd/sd-netlink/netlink-message.c114
2 files changed, 57 insertions, 65 deletions
diff --git a/src/libsystemd/sd-netlink/netlink-internal.h b/src/libsystemd/sd-netlink/netlink-internal.h
index 7290f4e875..31bc1d3fbd 100644
--- a/src/libsystemd/sd-netlink/netlink-internal.h
+++ b/src/libsystemd/sd-netlink/netlink-internal.h
@@ -122,14 +122,6 @@ int socket_read_message(sd_netlink *nl);
int rtnl_rqueue_make_room(sd_netlink *rtnl);
int rtnl_rqueue_partial_make_room(sd_netlink *rtnl);
-int rtnl_message_read_internal(sd_netlink_message *m, unsigned short type, void **data);
-int rtnl_message_parse(sd_netlink_message *m,
- size_t **rta_offset_tb,
- unsigned short *rta_tb_size,
- int max,
- struct rtattr *rta,
- unsigned int rt_len);
-
/* Make sure callbacks don't destroy the rtnl connection */
#define RTNL_DONT_DESTROY(rtnl) \
_cleanup_netlink_unref_ _unused_ sd_netlink *_dont_destroy_##rtnl = sd_netlink_ref(rtnl)
diff --git a/src/libsystemd/sd-netlink/netlink-message.c b/src/libsystemd/sd-netlink/netlink-message.c
index 6b6843e91b..23f369c576 100644
--- a/src/libsystemd/sd-netlink/netlink-message.c
+++ b/src/libsystemd/sd-netlink/netlink-message.c
@@ -475,7 +475,7 @@ int sd_netlink_message_close_container(sd_netlink_message *m) {
return 0;
}
-int rtnl_message_read_internal(sd_netlink_message *m, unsigned short type, void **data) {
+static int netlink_message_read_internal(sd_netlink_message *m, unsigned short type, void **data) {
struct rtattr *rta;
assert_return(m, -EINVAL);
@@ -505,7 +505,7 @@ int sd_netlink_message_read_string(sd_netlink_message *m, unsigned short type, c
if (r < 0)
return r;
- r = rtnl_message_read_internal(m, type, &attr_data);
+ r = netlink_message_read_internal(m, type, &attr_data);
if (r < 0)
return r;
else if (strnlen(attr_data, r) >= (size_t) r)
@@ -527,7 +527,7 @@ int sd_netlink_message_read_u8(sd_netlink_message *m, unsigned short type, uint8
if (r < 0)
return r;
- r = rtnl_message_read_internal(m, type, &attr_data);
+ r = netlink_message_read_internal(m, type, &attr_data);
if (r < 0)
return r;
else if ((size_t) r < sizeof(uint8_t))
@@ -549,7 +549,7 @@ int sd_netlink_message_read_u16(sd_netlink_message *m, unsigned short type, uint
if (r < 0)
return r;
- r = rtnl_message_read_internal(m, type, &attr_data);
+ r = netlink_message_read_internal(m, type, &attr_data);
if (r < 0)
return r;
else if ((size_t) r < sizeof(uint16_t))
@@ -571,7 +571,7 @@ int sd_netlink_message_read_u32(sd_netlink_message *m, unsigned short type, uint
if (r < 0)
return r;
- r = rtnl_message_read_internal(m, type, &attr_data);
+ r = netlink_message_read_internal(m, type, &attr_data);
if (r < 0)
return r;
else if ((size_t)r < sizeof(uint32_t))
@@ -593,7 +593,7 @@ int sd_netlink_message_read_ether_addr(sd_netlink_message *m, unsigned short typ
if (r < 0)
return r;
- r = rtnl_message_read_internal(m, type, &attr_data);
+ r = netlink_message_read_internal(m, type, &attr_data);
if (r < 0)
return r;
else if ((size_t)r < sizeof(struct ether_addr))
@@ -615,7 +615,7 @@ int sd_netlink_message_read_cache_info(sd_netlink_message *m, unsigned short typ
if (r < 0)
return r;
- r = rtnl_message_read_internal(m, type, &attr_data);
+ r = netlink_message_read_internal(m, type, &attr_data);
if (r < 0)
return r;
else if ((size_t)r < sizeof(struct ifa_cacheinfo))
@@ -637,7 +637,7 @@ int sd_netlink_message_read_in_addr(sd_netlink_message *m, unsigned short type,
if (r < 0)
return r;
- r = rtnl_message_read_internal(m, type, &attr_data);
+ r = netlink_message_read_internal(m, type, &attr_data);
if (r < 0)
return r;
else if ((size_t)r < sizeof(struct in_addr))
@@ -659,7 +659,7 @@ int sd_netlink_message_read_in6_addr(sd_netlink_message *m, unsigned short type,
if (r < 0)
return r;
- r = rtnl_message_read_internal(m, type, &attr_data);
+ r = netlink_message_read_internal(m, type, &attr_data);
if (r < 0)
return r;
else if ((size_t)r < sizeof(struct in6_addr))
@@ -671,6 +671,41 @@ int sd_netlink_message_read_in6_addr(sd_netlink_message *m, unsigned short type,
return 0;
}
+static int netlink_message_parse(sd_netlink_message *m,
+ size_t **rta_offset_tb,
+ unsigned short *rta_tb_size,
+ int count,
+ struct rtattr *rta,
+ unsigned int rt_len) {
+ unsigned short type;
+ size_t *tb;
+
+ tb = new0(size_t, count);
+ if(!tb)
+ return -ENOMEM;
+
+ *rta_tb_size = count;
+
+ for (; RTA_OK(rta, rt_len); rta = RTA_NEXT(rta, rt_len)) {
+ type = RTA_TYPE(rta);
+
+ /* if the kernel is newer than the headers we used
+ when building, we ignore out-of-range attributes
+ */
+ if (type >= count)
+ continue;
+
+ if (tb[type])
+ log_debug("rtnl: message parse - overwriting repeated attribute");
+
+ tb[type] = (uint8_t *) rta - (uint8_t *) m->hdr;
+ }
+
+ *rta_offset_tb = tb;
+
+ return 0;
+}
+
int sd_netlink_message_enter_container(sd_netlink_message *m, unsigned short type_id) {
const NLType *nl_type;
const NLTypeSystem *type_system;
@@ -744,7 +779,7 @@ int sd_netlink_message_enter_container(sd_netlink_message *m, unsigned short typ
} else
return -EINVAL;
- r = rtnl_message_read_internal(m, type_id, &container);
+ r = netlink_message_read_internal(m, type_id, &container);
if (r < 0)
return r;
else
@@ -752,12 +787,12 @@ int sd_netlink_message_enter_container(sd_netlink_message *m, unsigned short typ
m->n_containers ++;
- r = rtnl_message_parse(m,
- &m->rta_offset_tb[m->n_containers],
- &m->rta_tb_size[m->n_containers],
- type_system_get_count(type_system),
- container,
- size);
+ r = netlink_message_parse(m,
+ &m->rta_offset_tb[m->n_containers],
+ &m->rta_tb_size[m->n_containers],
+ type_system_get_count(type_system),
+ container,
+ size);
if (r < 0) {
m->n_containers --;
return r;
@@ -810,41 +845,6 @@ int sd_netlink_message_get_errno(sd_netlink_message *m) {
return err->error;
}
-int rtnl_message_parse(sd_netlink_message *m,
- size_t **rta_offset_tb,
- unsigned short *rta_tb_size,
- int count,
- struct rtattr *rta,
- unsigned int rt_len) {
- unsigned short type;
- size_t *tb;
-
- tb = new0(size_t, count);
- if(!tb)
- return -ENOMEM;
-
- *rta_tb_size = count;
-
- for (; RTA_OK(rta, rt_len); rta = RTA_NEXT(rta, rt_len)) {
- type = RTA_TYPE(rta);
-
- /* if the kernel is newer than the headers we used
- when building, we ignore out-of-range attributes
- */
- if (type >= count)
- continue;
-
- if (tb[type])
- log_debug("rtnl: message parse - overwriting repeated attribute");
-
- tb[type] = (uint8_t *) rta - (uint8_t *) m->hdr;
- }
-
- *rta_offset_tb = tb;
-
- return 0;
-}
-
int sd_netlink_message_rewind(sd_netlink_message *m) {
const NLType *nl_type;
uint16_t type;
@@ -888,12 +888,12 @@ int sd_netlink_message_rewind(sd_netlink_message *m) {
m->container_type_system[0] = type_system;
- r = rtnl_message_parse(m,
- &m->rta_offset_tb[m->n_containers],
- &m->rta_tb_size[m->n_containers],
- type_system_get_count(type_system),
- (struct rtattr*)((uint8_t*)NLMSG_DATA(m->hdr) + NLMSG_ALIGN(size)),
- NLMSG_PAYLOAD(m->hdr, size));
+ r = netlink_message_parse(m,
+ &m->rta_offset_tb[m->n_containers],
+ &m->rta_tb_size[m->n_containers],
+ type_system_get_count(type_system),
+ (struct rtattr*)((uint8_t*)NLMSG_DATA(m->hdr) + NLMSG_ALIGN(size)),
+ NLMSG_PAYLOAD(m->hdr, size));
if (r < 0)
return r;
}
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-17 09:50:24 +0000