diff options
Diffstat (limited to 'src/netlink.h')
| -rw-r--r-- | src/netlink.h | 177 |
1 files changed, 0 insertions, 177 deletions
diff --git a/src/netlink.h b/src/netlink.h deleted file mode 100644 index ccfdc2d..0000000 --- a/src/netlink.h +++ /dev/null @@ -1,177 +0,0 @@ -#ifndef __LINUX_NETLINK_H -#define __LINUX_NETLINK_H - -#include <linux/socket.h> /* for sa_family_t */ - -#define NETLINK_ROUTE 0 /* Routing/device hook */ -#define NETLINK_SKIP 1 /* Reserved for ENskip */ -#define NETLINK_USERSOCK 2 /* Reserved for user mode socket protocols */ -#define NETLINK_FIREWALL 3 /* Firewalling hook */ -#define NETLINK_TCPDIAG 4 /* TCP socket monitoring */ -#define NETLINK_NFLOG 5 /* netfilter/iptables ULOG */ -#define NETLINK_XFRM 6 /* ipsec */ -#define NETLINK_ARPD 8 -#define NETLINK_ROUTE6 11 /* af_inet6 route comm channel */ -#define NETLINK_IP6_FW 13 -#define NETLINK_DNRTMSG 14 /* DECnet routing messages */ -#define NETLINK_TAPBASE 16 /* 16 to 31 are ethertap */ - -#define MAX_LINKS 32 - -struct sockaddr_nl -{ - sa_family_t nl_family; /* AF_NETLINK */ - unsigned short nl_pad; /* zero */ - __u32 nl_pid; /* process pid */ - __u32 nl_groups; /* multicast groups mask */ -}; - -struct nlmsghdr -{ - __u32 nlmsg_len; /* Length of message including header */ - __u16 nlmsg_type; /* Message content */ - __u16 nlmsg_flags; /* Additional flags */ - __u32 nlmsg_seq; /* Sequence number */ - __u32 nlmsg_pid; /* Sending process PID */ -}; - -/* Flags values */ - -#define NLM_F_REQUEST 1 /* It is request message. */ -#define NLM_F_MULTI 2 /* Multipart message, terminated by NLMSG_DONE */ -#define NLM_F_ACK 4 /* Reply with ack, with zero or error code */ -#define NLM_F_ECHO 8 /* Echo this request */ - -/* Modifiers to GET request */ -#define NLM_F_ROOT 0x100 /* specify tree root */ -#define NLM_F_MATCH 0x200 /* return all matching */ -#define NLM_F_ATOMIC 0x400 /* atomic GET */ -#define NLM_F_DUMP (NLM_F_ROOT|NLM_F_MATCH) - -/* Modifiers to NEW request */ -#define NLM_F_REPLACE 0x100 /* Override existing */ -#define NLM_F_EXCL 0x200 /* Do not touch, if it exists */ -#define NLM_F_CREATE 0x400 /* Create, if it does not exist */ -#define NLM_F_APPEND 0x800 /* Add to end of list */ - -/* - 4.4BSD ADD NLM_F_CREATE|NLM_F_EXCL - 4.4BSD CHANGE NLM_F_REPLACE - - True CHANGE NLM_F_CREATE|NLM_F_REPLACE - Append NLM_F_CREATE - Check NLM_F_EXCL - */ - -#define NLMSG_ALIGNTO 4 -#define NLMSG_ALIGN(len) ( ((len)+NLMSG_ALIGNTO-1) & ~(NLMSG_ALIGNTO-1) ) -#define NLMSG_LENGTH(len) ((len)+NLMSG_ALIGN(sizeof(struct nlmsghdr))) -#define NLMSG_SPACE(len) NLMSG_ALIGN(NLMSG_LENGTH(len)) -#define NLMSG_DATA(nlh) ((void*)(((char*)nlh) + NLMSG_LENGTH(0))) -#define NLMSG_NEXT(nlh,len) ((len) -= NLMSG_ALIGN((nlh)->nlmsg_len), \ - (struct nlmsghdr*)(((char*)(nlh)) + NLMSG_ALIGN((nlh)->nlmsg_len))) -#define NLMSG_OK(nlh,len) ((len) > 0 && (nlh)->nlmsg_len >= sizeof(struct nlmsghdr) && \ - (nlh)->nlmsg_len <= (len)) -#define NLMSG_PAYLOAD(nlh,len) ((nlh)->nlmsg_len - NLMSG_SPACE((len))) - -#define NLMSG_NOOP 0x1 /* Nothing. */ -#define NLMSG_ERROR 0x2 /* Error */ -#define NLMSG_DONE 0x3 /* End of a dump */ -#define NLMSG_OVERRUN 0x4 /* Data lost */ - -struct nlmsgerr -{ - int error; - struct nlmsghdr msg; -}; - -#define NET_MAJOR 36 /* Major 36 is reserved for networking */ - -#ifdef __KERNEL__ - -#include <linux/capability.h> -#include <linux/skbuff.h> - -struct netlink_skb_parms -{ - struct ucred creds; /* Skb credentials */ - __u32 pid; - __u32 groups; - __u32 dst_pid; - __u32 dst_groups; - kernel_cap_t eff_cap; -}; - -#define NETLINK_CB(skb) (*(struct netlink_skb_parms*)&((skb)->cb)) -#define NETLINK_CREDS(skb) (&NETLINK_CB((skb)).creds) - - -extern int netlink_attach(int unit, int (*function)(int,struct sk_buff *skb)); -extern void netlink_detach(int unit); -extern int netlink_post(int unit, struct sk_buff *skb); -extern int init_netlink(void); -extern struct sock *netlink_kernel_create(int unit, void (*input)(struct sock *sk, int len)); -extern void netlink_ack(struct sk_buff *in_skb, struct nlmsghdr *nlh, int err); -extern int netlink_unicast(struct sock *ssk, struct sk_buff *skb, __u32 pid, int nonblock); -extern int netlink_broadcast(struct sock *ssk, struct sk_buff *skb, __u32 pid, - __u32 group, int allocation); -extern void netlink_set_err(struct sock *ssk, __u32 pid, __u32 group, int code); -extern int netlink_register_notifier(struct notifier_block *nb); -extern int netlink_unregister_notifier(struct notifier_block *nb); - -/* - * skb should fit one page. This choice is good for headerless malloc. - * - * FIXME: What is the best size for SLAB???? --ANK - */ -#define NLMSG_GOODSIZE (PAGE_SIZE - ((sizeof(struct sk_buff)+0xF)&~0xF)) - - -struct netlink_callback -{ - struct sk_buff *skb; - struct nlmsghdr *nlh; - int (*dump)(struct sk_buff * skb, struct netlink_callback *cb); - int (*done)(struct netlink_callback *cb); - int family; - long args[4]; -}; - -struct netlink_notify -{ - int pid; - int protocol; -}; - -static __inline__ struct nlmsghdr * -__nlmsg_put(struct sk_buff *skb, u32 pid, u32 seq, int type, int len) -{ - struct nlmsghdr *nlh; - int size = NLMSG_LENGTH(len); - - nlh = (struct nlmsghdr*)skb_put(skb, NLMSG_ALIGN(size)); - nlh->nlmsg_type = type; - nlh->nlmsg_len = size; - nlh->nlmsg_flags = 0; - nlh->nlmsg_pid = pid; - nlh->nlmsg_seq = seq; - return nlh; -} - -#define NLMSG_PUT(skb, pid, seq, type, len) \ -({ if (skb_tailroom(skb) < (int)NLMSG_SPACE(len)) goto nlmsg_failure; \ - __nlmsg_put(skb, pid, seq, type, len); }) - -extern int netlink_dump_start(struct sock *ssk, struct sk_buff *skb, - struct nlmsghdr *nlh, - int (*dump)(struct sk_buff *skb, struct netlink_callback*), - int (*done)(struct netlink_callback*)); - -#define NL_NONROOT_RECV 0x1 -#define NL_NONROOT_SEND 0x2 -extern void netlink_set_nonroot(int protocol, unsigned flag); - - -#endif /* __KERNEL__ */ - -#endif /* __LINUX_NETLINK_H */ |