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author | Nick Kralevich <nnk@google.com> | 2013-09-18 21:09:22 -0700 |
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committer | Android Git Automerger <android-git-automerger@android.com> | 2013-09-18 21:09:22 -0700 |
commit | bc8a3b5e561d46bae962e3a4b241ce22b4b33272 (patch) | |
tree | 8a66244c1d3ccdaa19edb777a0d6183db1e173dd /original | |
parent | 8c8998656167b501dd37e6f010e93738f98dc046 (diff) | |
parent | 71b519027467d23f43778e073a67f1a84975e558 (diff) | |
download | kernel-headers-bc8a3b5e561d46bae962e3a4b241ce22b4b33272.tar.gz |
am 71b51902: Merge "Update linux/netlink.h"
* commit '71b519027467d23f43778e073a67f1a84975e558':
Update linux/netlink.h
Diffstat (limited to 'original')
-rw-r--r-- | original/linux/netlink.h | 171 |
1 files changed, 42 insertions, 129 deletions
diff --git a/original/linux/netlink.h b/original/linux/netlink.h index f434363..e0a09df 100644 --- a/original/linux/netlink.h +++ b/original/linux/netlink.h @@ -1,14 +1,15 @@ #ifndef __LINUX_NETLINK_H #define __LINUX_NETLINK_H -#include <linux/socket.h> /* for sa_family_t */ +#include <linux/kernel.h> +#include <linux/socket.h> /* for __kernel_sa_family_t */ #include <linux/types.h> #define NETLINK_ROUTE 0 /* Routing/device hook */ #define NETLINK_UNUSED 1 /* Unused number */ #define NETLINK_USERSOCK 2 /* Reserved for user mode socket protocols */ -#define NETLINK_FIREWALL 3 /* Firewalling hook */ -#define NETLINK_INET_DIAG 4 /* INET socket monitoring */ +#define NETLINK_FIREWALL 3 /* Unused number, formerly ip_queue */ +#define NETLINK_SOCK_DIAG 4 /* socket monitoring */ #define NETLINK_NFLOG 5 /* netfilter/iptables ULOG */ #define NETLINK_XFRM 6 /* ipsec */ #define NETLINK_SELINUX 7 /* SELinux event notifications */ @@ -25,12 +26,14 @@ #define NETLINK_SCSITRANSPORT 18 /* SCSI Transports */ #define NETLINK_ECRYPTFS 19 #define NETLINK_RDMA 20 -#define NETLINK_IDLETIMER 21 +#define NETLINK_CRYPTO 21 /* Crypto layer */ + +#define NETLINK_INET_DIAG NETLINK_SOCK_DIAG #define MAX_LINKS 32 struct sockaddr_nl { - sa_family_t nl_family; /* AF_NETLINK */ + __kernel_sa_family_t nl_family; /* AF_NETLINK */ unsigned short nl_pad; /* zero */ __u32 nl_pid; /* port ID */ __u32 nl_groups; /* multicast groups mask */ @@ -50,6 +53,7 @@ struct nlmsghdr { #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 */ +#define NLM_F_DUMP_INTR 16 /* Dump was inconsistent due to sequence change */ /* Modifiers to GET request */ #define NLM_F_ROOT 0x100 /* specify tree root */ @@ -75,7 +79,7 @@ struct nlmsghdr { #define NLMSG_ALIGNTO 4U #define NLMSG_ALIGN(len) ( ((len)+NLMSG_ALIGNTO-1) & ~(NLMSG_ALIGNTO-1) ) #define NLMSG_HDRLEN ((int) NLMSG_ALIGN(sizeof(struct nlmsghdr))) -#define NLMSG_LENGTH(len) ((len)+NLMSG_ALIGN(NLMSG_HDRLEN)) +#define NLMSG_LENGTH(len) ((len) + NLMSG_HDRLEN) #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), \ @@ -102,11 +106,42 @@ struct nlmsgerr { #define NETLINK_PKTINFO 3 #define NETLINK_BROADCAST_ERROR 4 #define NETLINK_NO_ENOBUFS 5 +#define NETLINK_RX_RING 6 +#define NETLINK_TX_RING 7 struct nl_pktinfo { __u32 group; }; +struct nl_mmap_req { + unsigned int nm_block_size; + unsigned int nm_block_nr; + unsigned int nm_frame_size; + unsigned int nm_frame_nr; +}; + +struct nl_mmap_hdr { + unsigned int nm_status; + unsigned int nm_len; + __u32 nm_group; + /* credentials */ + __u32 nm_pid; + __u32 nm_uid; + __u32 nm_gid; +}; + +enum nl_mmap_status { + NL_MMAP_STATUS_UNUSED, + NL_MMAP_STATUS_RESERVED, + NL_MMAP_STATUS_VALID, + NL_MMAP_STATUS_COPY, + NL_MMAP_STATUS_SKIP, +}; + +#define NL_MMAP_MSG_ALIGNMENT NLMSG_ALIGNTO +#define NL_MMAP_MSG_ALIGN(sz) __ALIGN_KERNEL(sz, NL_MMAP_MSG_ALIGNMENT) +#define NL_MMAP_HDRLEN NL_MMAP_MSG_ALIGN(sizeof(struct nl_mmap_hdr)) + #define NET_MAJOR 36 /* Major 36 is reserved for networking */ enum { @@ -146,127 +181,5 @@ struct nlattr { #define NLA_ALIGN(len) (((len) + NLA_ALIGNTO - 1) & ~(NLA_ALIGNTO - 1)) #define NLA_HDRLEN ((int) NLA_ALIGN(sizeof(struct nlattr))) -#ifdef __KERNEL__ - -#include <linux/capability.h> -#include <linux/skbuff.h> - -struct net; - -static inline struct nlmsghdr *nlmsg_hdr(const struct sk_buff *skb) -{ - return (struct nlmsghdr *)skb->data; -} - -struct netlink_skb_parms { - struct ucred creds; /* Skb credentials */ - __u32 pid; - __u32 dst_group; -}; - -#define NETLINK_CB(skb) (*(struct netlink_skb_parms*)&((skb)->cb)) -#define NETLINK_CREDS(skb) (&NETLINK_CB((skb)).creds) - - -extern void netlink_table_grab(void); -extern void netlink_table_ungrab(void); - -extern struct sock *netlink_kernel_create(struct net *net, - int unit,unsigned int groups, - void (*input)(struct sk_buff *skb), - struct mutex *cb_mutex, - struct module *module); -extern void netlink_kernel_release(struct sock *sk); -extern int __netlink_change_ngroups(struct sock *sk, unsigned int groups); -extern int netlink_change_ngroups(struct sock *sk, unsigned int groups); -extern void __netlink_clear_multicast_users(struct sock *sk, unsigned int group); -extern void netlink_clear_multicast_users(struct sock *sk, unsigned int group); -extern void netlink_ack(struct sk_buff *in_skb, struct nlmsghdr *nlh, int err); -extern int netlink_has_listeners(struct sock *sk, unsigned int group); -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, gfp_t allocation); -extern int netlink_broadcast_filtered(struct sock *ssk, struct sk_buff *skb, - __u32 pid, __u32 group, gfp_t allocation, - int (*filter)(struct sock *dsk, struct sk_buff *skb, void *data), - void *filter_data); -extern int 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); - -/* finegrained unicast helpers: */ -struct sock *netlink_getsockbyfilp(struct file *filp); -int netlink_attachskb(struct sock *sk, struct sk_buff *skb, - long *timeo, struct sock *ssk); -void netlink_detachskb(struct sock *sk, struct sk_buff *skb); -int netlink_sendskb(struct sock *sk, struct sk_buff *skb); - -/* - * skb should fit one page. This choice is good for headerless malloc. - * But we should limit to 8K so that userspace does not have to - * use enormous buffer sizes on recvmsg() calls just to avoid - * MSG_TRUNC when PAGE_SIZE is very large. - */ -#if PAGE_SIZE < 8192UL -#define NLMSG_GOODSIZE SKB_WITH_OVERHEAD(PAGE_SIZE) -#else -#define NLMSG_GOODSIZE SKB_WITH_OVERHEAD(8192UL) -#endif - -#define NLMSG_DEFAULT_SIZE (NLMSG_GOODSIZE - NLMSG_HDRLEN) - - -struct netlink_callback { - struct sk_buff *skb; - const struct nlmsghdr *nlh; - int (*dump)(struct sk_buff * skb, - struct netlink_callback *cb); - int (*done)(struct netlink_callback *cb); - int family; - long args[6]; -}; - -struct netlink_notify { - struct net *net; - int pid; - int protocol; -}; - -static __inline__ struct nlmsghdr * -__nlmsg_put(struct sk_buff *skb, u32 pid, u32 seq, int type, int len, int flags) -{ - 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 = flags; - nlh->nlmsg_pid = pid; - nlh->nlmsg_seq = seq; - if (!__builtin_constant_p(size) || NLMSG_ALIGN(size) - size != 0) - memset(NLMSG_DATA(nlh) + len, 0, NLMSG_ALIGN(size) - size); - return nlh; -} - -#define NLMSG_NEW(skb, pid, seq, type, len, flags) \ -({ if (unlikely(skb_tailroom(skb) < (int)NLMSG_SPACE(len))) \ - goto nlmsg_failure; \ - __nlmsg_put(skb, pid, seq, type, len, flags); }) - -#define NLMSG_PUT(skb, pid, seq, type, len) \ - NLMSG_NEW(skb, pid, seq, type, len, 0) - -extern int netlink_dump_start(struct sock *ssk, struct sk_buff *skb, - const 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 */ +#endif /* __LINUX_NETLINK_H */ |