diff options
Diffstat (limited to 'include/libnetlink.h')
| -rw-r--r-- | include/libnetlink.h | 75 |
1 files changed, 58 insertions, 17 deletions
diff --git a/include/libnetlink.h b/include/libnetlink.h index 431189e2..69257f0e 100644 --- a/include/libnetlink.h +++ b/include/libnetlink.h @@ -10,9 +10,9 @@ #include <linux/if_addr.h> #include <linux/neighbour.h> #include <linux/netconf.h> +#include <arpa/inet.h> -struct rtnl_handle -{ +struct rtnl_handle { int fd; struct sockaddr_nl local; struct sockaddr_nl peer; @@ -21,15 +21,26 @@ struct rtnl_handle int proto; FILE *dump_fp; #define RTNL_HANDLE_F_LISTEN_ALL_NSID 0x01 +#define RTNL_HANDLE_F_SUPPRESS_NLERR 0x02 int flags; }; +struct nlmsg_list { + struct nlmsg_list *next; + struct nlmsghdr h; +}; + +struct nlmsg_chain { + struct nlmsg_list *head; + struct nlmsg_list *tail; +}; + extern int rcvbuf; -int rtnl_open(struct rtnl_handle *rth, unsigned subscriptions) +int rtnl_open(struct rtnl_handle *rth, unsigned int subscriptions) __attribute__((warn_unused_result)); -int rtnl_open_byproto(struct rtnl_handle *rth, unsigned subscriptions, +int rtnl_open_byproto(struct rtnl_handle *rth, unsigned int subscriptions, int protocol) __attribute__((warn_unused_result)); @@ -39,6 +50,15 @@ int rtnl_wilddump_request(struct rtnl_handle *rth, int fam, int type) int rtnl_wilddump_req_filter(struct rtnl_handle *rth, int fam, int type, __u32 filt_mask) __attribute__((warn_unused_result)); + +typedef int (*req_filter_fn_t)(struct nlmsghdr *nlh, int reqlen); + +int rtnl_wilddump_req_filter_fn(struct rtnl_handle *rth, int fam, int type, + req_filter_fn_t fn) + __attribute__((warn_unused_result)); +int rtnl_wilddump_stats_req_filter(struct rtnl_handle *rth, int fam, int type, + __u32 filt_mask) + __attribute__((warn_unused_result)); int rtnl_dump_request(struct rtnl_handle *rth, int type, void *req, int len) __attribute__((warn_unused_result)); @@ -56,8 +76,10 @@ typedef int (*rtnl_listen_filter_t)(const struct sockaddr_nl *, struct rtnl_ctrl_data *, struct nlmsghdr *n, void *); -struct rtnl_dump_filter_arg -{ +typedef int (*nl_ext_ack_fn_t)(const char *errmsg, uint32_t off, + const struct nlmsghdr *inner_nlh); + +struct rtnl_dump_filter_arg { rtnl_filter_t filter; void *arg1; __u16 nc_flags; @@ -73,6 +95,12 @@ int rtnl_dump_filter_nc(struct rtnl_handle *rth, int rtnl_talk(struct rtnl_handle *rtnl, struct nlmsghdr *n, struct nlmsghdr *answer, size_t len) __attribute__((warn_unused_result)); +int rtnl_talk_extack(struct rtnl_handle *rtnl, struct nlmsghdr *n, + struct nlmsghdr *answer, size_t len, nl_ext_ack_fn_t errfn) + __attribute__((warn_unused_result)); +int rtnl_talk_suppress_rtnl_errmsg(struct rtnl_handle *rtnl, struct nlmsghdr *n, + struct nlmsghdr *answer, size_t len) + __attribute__((warn_unused_result)); int rtnl_send(struct rtnl_handle *rth, const void *buf, int) __attribute__((warn_unused_result)); int rtnl_send_check(struct rtnl_handle *rth, const void *buf, int) @@ -133,13 +161,22 @@ static inline __u16 rta_getattr_u16(const struct rtattr *rta) { return *(__u16 *)RTA_DATA(rta); } +static inline __be16 rta_getattr_be16(const struct rtattr *rta) +{ + return ntohs(rta_getattr_u16(rta)); +} static inline __u32 rta_getattr_u32(const struct rtattr *rta) { return *(__u32 *)RTA_DATA(rta); } +static inline __be32 rta_getattr_be32(const struct rtattr *rta) +{ + return ntohl(rta_getattr_u32(rta)); +} static inline __u64 rta_getattr_u64(const struct rtattr *rta) { __u64 tmp; + memcpy(&tmp, RTA_DATA(rta), sizeof(__u64)); return tmp; } @@ -159,42 +196,47 @@ int rtnl_from_file(FILE *, rtnl_listen_filter_t handler, #ifndef IFA_RTA #define IFA_RTA(r) \ - ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct ifaddrmsg)))) + ((struct rtattr *)(((char *)(r)) + NLMSG_ALIGN(sizeof(struct ifaddrmsg)))) #endif #ifndef IFA_PAYLOAD -#define IFA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct ifaddrmsg)) +#define IFA_PAYLOAD(n) NLMSG_PAYLOAD(n, sizeof(struct ifaddrmsg)) #endif #ifndef IFLA_RTA #define IFLA_RTA(r) \ - ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct ifinfomsg)))) + ((struct rtattr *)(((char *)(r)) + NLMSG_ALIGN(sizeof(struct ifinfomsg)))) #endif #ifndef IFLA_PAYLOAD -#define IFLA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct ifinfomsg)) +#define IFLA_PAYLOAD(n) NLMSG_PAYLOAD(n, sizeof(struct ifinfomsg)) #endif #ifndef NDA_RTA #define NDA_RTA(r) \ - ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct ndmsg)))) + ((struct rtattr *)(((char *)(r)) + NLMSG_ALIGN(sizeof(struct ndmsg)))) #endif #ifndef NDA_PAYLOAD -#define NDA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct ndmsg)) +#define NDA_PAYLOAD(n) NLMSG_PAYLOAD(n, sizeof(struct ndmsg)) #endif #ifndef NDTA_RTA #define NDTA_RTA(r) \ - ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct ndtmsg)))) + ((struct rtattr *)(((char *)(r)) + NLMSG_ALIGN(sizeof(struct ndtmsg)))) #endif #ifndef NDTA_PAYLOAD -#define NDTA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct ndtmsg)) +#define NDTA_PAYLOAD(n) NLMSG_PAYLOAD(n, sizeof(struct ndtmsg)) #endif #ifndef NETNS_RTA #define NETNS_RTA(r) \ - ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct rtgenmsg)))) + ((struct rtattr *)(((char *)(r)) + NLMSG_ALIGN(sizeof(struct rtgenmsg)))) #endif #ifndef NETNS_PAYLOAD -#define NETNS_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct rtgenmsg)) +#define NETNS_PAYLOAD(n) NLMSG_PAYLOAD(n, sizeof(struct rtgenmsg)) +#endif + +#ifndef IFLA_STATS_RTA +#define IFLA_STATS_RTA(r) \ + ((struct rtattr *)(((char *)(r)) + NLMSG_ALIGN(sizeof(struct if_stats_msg)))) #endif /* User defined nlmsg_type which is used mostly for logging netlink @@ -202,4 +244,3 @@ int rtnl_from_file(FILE *, rtnl_listen_filter_t handler, #define NLMSG_TSTAMP 15 #endif /* __LIBNETLINK_H__ */ - |