#ifndef _NET_INET_IPX_H_ #define _NET_INET_IPX_H_ /* * The following information is in its entirety obtained from: * * Novell 'IPX Router Specification' Version 1.10 * Part No. 107-000029-001 * * Which is available from ftp.novell.com */ #include #include #include #include #include struct ipx_address { __be32 net; __u8 node[IPX_NODE_LEN]; __be16 sock; }; #define ipx_broadcast_node "\377\377\377\377\377\377" #define ipx_this_node "\0\0\0\0\0\0" #define IPX_MAX_PPROP_HOPS 8 struct ipxhdr { __be16 ipx_checksum __packed; #define IPX_NO_CHECKSUM cpu_to_be16(0xFFFF) __be16 ipx_pktsize __packed; __u8 ipx_tctrl; __u8 ipx_type; #define IPX_TYPE_UNKNOWN 0x00 #define IPX_TYPE_RIP 0x01 /* may also be 0 */ #define IPX_TYPE_SAP 0x04 /* may also be 0 */ #define IPX_TYPE_SPX 0x05 /* SPX protocol */ #define IPX_TYPE_NCP 0x11 /* $lots for docs on this (SPIT) */ #define IPX_TYPE_PPROP 0x14 /* complicated flood fill brdcast */ struct ipx_address ipx_dest __packed; struct ipx_address ipx_source __packed; }; /* From af_ipx.c */ extern int sysctl_ipx_pprop_broadcasting; static __inline__ struct ipxhdr *ipx_hdr(struct sk_buff *skb) { return (struct ipxhdr *)skb_transport_header(skb); } struct ipx_interface { /* IPX address */ __be32 if_netnum; unsigned char if_node[IPX_NODE_LEN]; atomic_t refcnt; /* physical device info */ struct net_device *if_dev; struct datalink_proto *if_dlink; __be16 if_dlink_type; /* socket support */ unsigned short if_sknum; struct hlist_head if_sklist; spinlock_t if_sklist_lock; /* administrative overhead */ int if_ipx_offset; unsigned char if_internal; unsigned char if_primary; struct list_head node; /* node in ipx_interfaces list */ }; struct ipx_route { __be32 ir_net; struct ipx_interface *ir_intrfc; unsigned char ir_routed; unsigned char ir_router_node[IPX_NODE_LEN]; struct list_head node; /* node in ipx_routes list */ atomic_t refcnt; }; struct ipx_cb { u8 ipx_tctrl; __be32 ipx_dest_net; __be32 ipx_source_net; struct { __be32 netnum; int index; } last_hop; }; #include struct ipx_sock { /* struct sock has to be the first member of ipx_sock */ struct sock sk; struct ipx_address dest_addr; struct ipx_interface *intrfc; __be16 port; #ifdef CONFIG_IPX_INTERN unsigned char node[IPX_NODE_LEN]; #endif unsigned short type; /* * To handle special ncp connection-handling sockets for mars_nwe, * the connection number must be stored in the socket. */ unsigned short ipx_ncp_conn; }; static inline struct ipx_sock *ipx_sk(struct sock *sk) { return (struct ipx_sock *)sk; } #define IPX_SKB_CB(__skb) ((struct ipx_cb *)&((__skb)->cb[0])) #define IPX_MIN_EPHEMERAL_SOCKET 0x4000 #define IPX_MAX_EPHEMERAL_SOCKET 0x7fff extern struct list_head ipx_routes; extern rwlock_t ipx_routes_lock; extern struct list_head ipx_interfaces; struct ipx_interface *ipx_interfaces_head(void); extern spinlock_t ipx_interfaces_lock; extern struct ipx_interface *ipx_primary_net; int ipx_proc_init(void); void ipx_proc_exit(void); const char *ipx_frame_name(__be16); const char *ipx_device_name(struct ipx_interface *intrfc); static __inline__ void ipxitf_hold(struct ipx_interface *intrfc) { atomic_inc(&intrfc->refcnt); } void ipxitf_down(struct ipx_interface *intrfc); struct ipx_interface *ipxitf_find_using_net(__be32 net); int ipxitf_send(struct ipx_interface *intrfc, struct sk_buff *skb, char *node); __be16 ipx_cksum(struct ipxhdr *packet, int length); int ipxrtr_add_route(__be32 network, struct ipx_interface *intrfc, unsigned char *node); void ipxrtr_del_routes(struct ipx_interface *intrfc); int ipxrtr_route_packet(struct sock *sk, struct sockaddr_ipx *usipx, struct msghdr *msg, size_t len, int noblock); int ipxrtr_route_skb(struct sk_buff *skb); struct ipx_route *ipxrtr_lookup(__be32 net); int ipxrtr_ioctl(unsigned int cmd, void __user *arg); static __inline__ void ipxitf_put(struct ipx_interface *intrfc) { if (atomic_dec_and_test(&intrfc->refcnt)) ipxitf_down(intrfc); } static __inline__ void ipxrtr_hold(struct ipx_route *rt) { atomic_inc(&rt->refcnt); } static __inline__ void ipxrtr_put(struct ipx_route *rt) { if (atomic_dec_and_test(&rt->refcnt)) kfree(rt); } #endif /* _NET_INET_IPX_H_ */ ly
authorLinus Torvalds <torvalds@linux-foundation.org>2017-01-01 12:27:05 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-01-01 12:27:05 -0800
commit4759d386d55fef452d692bf101167914437e848e (patch)
treee7109c192ec589fcea2a98f9702aa3c0e4009581 /net/sctp/sm_make_chunk.c
parent238d1d0f79f619d75c2cc741d6770fb0986aef24 (diff)
parent1db175428ee374489448361213e9c3b749d14900 (diff)
Merge branch 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull DAX updates from Dan Williams: "The completion of Jan's DAX work for 4.10. As I mentioned in the libnvdimm-for-4.10 pull request, these are some final fixes for the DAX dirty-cacheline-tracking invalidation work that was merged through the -mm, ext4, and xfs trees in -rc1. These patches were prepared prior to the merge window, but we waited for 4.10-rc1 to have a stable merge base after all the prerequisites were merged. Quoting Jan on the overall changes in these patches: "So I'd like all these 6 patches to go for rc2. The first three patches fix invalidation of exceptional DAX entries (a bug which is there for a long time) - without these patches data loss can occur on power failure even though user called fsync(2). The other three patches change locking of DAX faults so that ->iomap_begin() is called in a more relaxed locking context and we are safe to start a transaction there for ext4" These have received a build success notification from the kbuild robot, and pass the latest libnvdimm unit tests. There have not been any -next releases since -rc1, so they have not appeared there" * 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: ext4: Simplify DAX fault path dax: Call ->iomap_begin without entry lock during dax fault dax: Finish fault completely when loading holes dax: Avoid page invalidation races and unnecessary radix tree traversals mm: Invalidate DAX radix tree entries only if appropriate ext2: Return BH_New buffers for zeroed blocks
Diffstat (limited to 'net/sctp/sm_make_chunk.c')