From 55944e5e40b1be2afc4855d8d2baf4b73d1876b5 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 10 Apr 2024 22:49:52 +0200 Subject: Adding upstream version 255.4. Signed-off-by: Daniel Baumann --- src/libsystemd/sd-netlink/netlink-util.h | 113 +++++++++++++++++++++++++++++++ 1 file changed, 113 insertions(+) create mode 100644 src/libsystemd/sd-netlink/netlink-util.h (limited to 'src/libsystemd/sd-netlink/netlink-util.h') diff --git a/src/libsystemd/sd-netlink/netlink-util.h b/src/libsystemd/sd-netlink/netlink-util.h new file mode 100644 index 0000000..369f5d5 --- /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 + +#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); -- cgit v1.2.3