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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-10 20:49:52 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-10 20:49:52 +0000
commit55944e5e40b1be2afc4855d8d2baf4b73d1876b5 (patch)
tree33f869f55a1b149e9b7c2b7e201867ca5dd52992 /src/libsystemd/sd-netlink/netlink-util.h
parentInitial commit. (diff)
downloadsystemd-55944e5e40b1be2afc4855d8d2baf4b73d1876b5.tar.xz
systemd-55944e5e40b1be2afc4855d8d2baf4b73d1876b5.zip
Adding upstream version 255.4.upstream/255.4
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/libsystemd/sd-netlink/netlink-util.h')
-rw-r--r--src/libsystemd/sd-netlink/netlink-util.h113
1 files changed, 113 insertions, 0 deletions
diff --git a/src/libsystemd/sd-netlink/netlink-util.h b/src/libsystemd/sd-netlink/netlink-util.h
new file mode 100644
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--- /dev/null
+++ b/src/libsystemd/sd-netlink/netlink-util.h
@@ -0,0 +1,113 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+#pragma once
+
+#include <linux/rtnetlink.h>
+
+#include "sd-netlink.h"
+
+#include "ether-addr-util.h"
+#include "in-addr-util.h"
+#include "ordered-set.h"
+#include "socket-util.h"
+
+/* See struct rtvia in rtnetlink.h */
+typedef struct RouteVia {
+ uint16_t family;
+ union in_addr_union address;
+} _packed_ RouteVia;
+
+typedef struct MultipathRoute {
+ RouteVia gateway;
+ uint32_t weight;
+ int ifindex;
+ char *ifname;
+} MultipathRoute;
+
+MultipathRoute *multipath_route_free(MultipathRoute *m);
+DEFINE_TRIVIAL_CLEANUP_FUNC(MultipathRoute*, multipath_route_free);
+
+int multipath_route_dup(const MultipathRoute *m, MultipathRoute **ret);
+
+int rtnl_set_link_name(sd_netlink **rtnl, int ifindex, const char *name, char* const* alternative_names);
+static inline int rtnl_append_link_alternative_names(sd_netlink **rtnl, int ifindex, char* const *alternative_names) {
+ return rtnl_set_link_name(rtnl, ifindex, NULL, alternative_names);
+}
+int rtnl_set_link_properties(
+ sd_netlink **rtnl,
+ int ifindex,
+ const char *alias,
+ const struct hw_addr_data *hw_addr,
+ uint32_t txqueues,
+ uint32_t rxqueues,
+ uint32_t txqueuelen,
+ uint32_t mtu,
+ uint32_t gso_max_size,
+ size_t gso_max_segments);
+int rtnl_get_link_alternative_names(sd_netlink **rtnl, int ifindex, char ***ret);
+int rtnl_set_link_alternative_names(sd_netlink **rtnl, int ifindex, char* const *alternative_names);
+int rtnl_set_link_alternative_names_by_ifname(sd_netlink **rtnl, const char *ifname, char* const *alternative_names);
+int rtnl_delete_link_alternative_names(sd_netlink **rtnl, int ifindex, char* const *alternative_names);
+int rtnl_resolve_link_alternative_name(sd_netlink **rtnl, const char *name, char **ret);
+int rtnl_resolve_ifname(sd_netlink **rtnl, const char *name);
+int rtnl_resolve_interface(sd_netlink **rtnl, const char *name);
+int rtnl_resolve_interface_or_warn(sd_netlink **rtnl, const char *name);
+int rtnl_get_link_info(
+ sd_netlink **rtnl,
+ int ifindex,
+ unsigned short *ret_iftype,
+ unsigned *ret_flags,
+ char **ret_kind,
+ struct hw_addr_data *ret_hw_addr,
+ struct hw_addr_data *ret_permanent_hw_addr);
+
+int rtnl_log_parse_error(int r);
+int rtnl_log_create_error(int r);
+
+#define netlink_call_async(nl, ret_slot, message, callback, destroy_callback, userdata) \
+ ({ \
+ int (*_callback_)(sd_netlink *, sd_netlink_message *, typeof(userdata)) = callback; \
+ void (*_destroy_)(typeof(userdata)) = destroy_callback; \
+ sd_netlink_call_async(nl, ret_slot, message, \
+ (sd_netlink_message_handler_t) _callback_, \
+ (sd_netlink_destroy_t) _destroy_, \
+ userdata, 0, __func__); \
+ })
+
+#define netlink_add_match(nl, ret_slot, match, callback, destroy_callback, userdata, description) \
+ ({ \
+ int (*_callback_)(sd_netlink *, sd_netlink_message *, typeof(userdata)) = callback; \
+ void (*_destroy_)(typeof(userdata)) = destroy_callback; \
+ sd_netlink_add_match(nl, ret_slot, match, \
+ (sd_netlink_message_handler_t) _callback_, \
+ (sd_netlink_destroy_t) _destroy_, \
+ userdata, description); \
+ })
+
+#define genl_add_match(nl, ret_slot, family, group, cmd, callback, destroy_callback, userdata, description) \
+ ({ \
+ int (*_callback_)(sd_netlink *, sd_netlink_message *, typeof(userdata)) = callback; \
+ void (*_destroy_)(typeof(userdata)) = destroy_callback; \
+ sd_genl_add_match(nl, ret_slot, family, group, cmd, \
+ (sd_netlink_message_handler_t) _callback_, \
+ (sd_netlink_destroy_t) _destroy_, \
+ userdata, description); \
+ })
+
+int netlink_message_append_hw_addr(sd_netlink_message *m, unsigned short type, const struct hw_addr_data *data);
+int netlink_message_append_in_addr_union(sd_netlink_message *m, unsigned short type, int family, const union in_addr_union *data);
+int netlink_message_append_sockaddr_union(sd_netlink_message *m, unsigned short type, const union sockaddr_union *data);
+
+int netlink_message_read_hw_addr(sd_netlink_message *m, unsigned short type, struct hw_addr_data *data);
+int netlink_message_read_in_addr_union(sd_netlink_message *m, unsigned short type, int family, union in_addr_union *data);
+
+void rtattr_append_attribute_internal(struct rtattr *rta, unsigned short type, const void *data, size_t data_length);
+int rtattr_append_attribute(struct rtattr **rta, unsigned short type, const void *data, size_t data_length);
+
+int rtattr_read_nexthop(const struct rtnexthop *rtnh, size_t size, int family, OrderedSet **ret);
+
+void netlink_seal_message(sd_netlink *nl, sd_netlink_message *m);
+
+size_t netlink_get_reply_callback_count(sd_netlink *nl);
+
+/* TODO: to be exported later */
+int sd_netlink_sendv(sd_netlink *nl, sd_netlink_message **messages, size_t msgcnt, uint32_t **ret_serial);