| #include <stdint.h> |
| |
| /* linux/netlink.h */ |
| |
| #define NETLINK_ROUTE 0 |
| |
| struct nlmsghdr { |
| uint32_t nlmsg_len; |
| uint16_t nlmsg_type; |
| uint16_t nlmsg_flags; |
| uint32_t nlmsg_seq; |
| uint32_t nlmsg_pid; |
| }; |
| |
| #define NLM_F_REQUEST 1 |
| #define NLM_F_MULTI 2 |
| #define NLM_F_ACK 4 |
| |
| #define NLM_F_ROOT 0x100 |
| #define NLM_F_MATCH 0x200 |
| #define NLM_F_ATOMIC 0x400 |
| #define NLM_F_DUMP (NLM_F_ROOT|NLM_F_MATCH) |
| |
| #define NLMSG_NOOP 0x1 |
| #define NLMSG_ERROR 0x2 |
| #define NLMSG_DONE 0x3 |
| #define NLMSG_OVERRUN 0x4 |
| |
| /* linux/rtnetlink.h */ |
| |
| #define RTM_NEWLINK 16 |
| #define RTM_GETLINK 18 |
| #define RTM_NEWADDR 20 |
| #define RTM_GETADDR 22 |
| |
| struct rtattr { |
| unsigned short rta_len; |
| unsigned short rta_type; |
| }; |
| |
| struct rtgenmsg { |
| unsigned char rtgen_family; |
| }; |
| |
| struct ifinfomsg { |
| unsigned char ifi_family; |
| unsigned char __ifi_pad; |
| unsigned short ifi_type; |
| int ifi_index; |
| unsigned ifi_flags; |
| unsigned ifi_change; |
| }; |
| |
| /* linux/if_link.h */ |
| |
| #define IFLA_ADDRESS 1 |
| #define IFLA_BROADCAST 2 |
| #define IFLA_IFNAME 3 |
| #define IFLA_STATS 7 |
| |
| /* linux/if_addr.h */ |
| |
| struct ifaddrmsg { |
| uint8_t ifa_family; |
| uint8_t ifa_prefixlen; |
| uint8_t ifa_flags; |
| uint8_t ifa_scope; |
| uint32_t ifa_index; |
| }; |
| |
| #define IFA_ADDRESS 1 |
| #define IFA_LOCAL 2 |
| #define IFA_LABEL 3 |
| #define IFA_BROADCAST 4 |
| |
| /* musl */ |
| |
| #define NETLINK_ALIGN(len) (((len)+3) & ~3) |
| #define NLMSG_DATA(nlh) ((void*)((char*)(nlh)+sizeof(struct nlmsghdr))) |
| #define NLMSG_DATALEN(nlh) ((nlh)->nlmsg_len-sizeof(struct nlmsghdr)) |
| #define NLMSG_DATAEND(nlh) ((char*)(nlh)+(nlh)->nlmsg_len) |
| #define NLMSG_NEXT(nlh) (struct nlmsghdr*)((char*)(nlh)+NETLINK_ALIGN((nlh)->nlmsg_len)) |
| #define NLMSG_OK(nlh,end) ((char*)(end)-(char*)(nlh) >= sizeof(struct nlmsghdr)) |
| |
| #define RTA_DATA(rta) ((void*)((char*)(rta)+sizeof(struct rtattr))) |
| #define RTA_DATALEN(rta) ((rta)->rta_len-sizeof(struct rtattr)) |
| #define RTA_DATAEND(rta) ((char*)(rta)+(rta)->rta_len) |
| #define RTA_NEXT(rta) (struct rtattr*)((char*)(rta)+NETLINK_ALIGN((rta)->rta_len)) |
| #define RTA_OK(nlh,end) ((char*)(end)-(char*)(rta) >= sizeof(struct rtattr)) |
| |
| #define NLMSG_RTA(nlh,len) ((void*)((char*)(nlh)+sizeof(struct nlmsghdr)+NETLINK_ALIGN(len))) |
| #define NLMSG_RTAOK(rta,nlh) RTA_OK(rta,NLMSG_DATAEND(nlh)) |
| |
| hidden int __rtnetlink_enumerate(int link_af, int addr_af, int (*cb)(void *ctx, struct nlmsghdr *h), void *ctx); |