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Diffstat (limited to 'net/tipc/msg.h')
-rw-r--r--net/tipc/msg.h106
1 files changed, 28 insertions, 78 deletions
diff --git a/net/tipc/msg.h b/net/tipc/msg.h
index 8452454731f..503511903d1 100644
--- a/net/tipc/msg.h
+++ b/net/tipc/msg.h
@@ -1,7 +1,7 @@
/*
* net/tipc/msg.h: Include file for TIPC message header routines
*
- * Copyright (c) 2000-2007, Ericsson AB
+ * Copyright (c) 2000-2007, 2014, Ericsson AB
* Copyright (c) 2005-2008, 2010-2011, Wind River Systems
* All rights reserved.
*
@@ -44,7 +44,6 @@
*
* Note: Some items are also used with TIPC internal message headers
*/
-
#define TIPC_VERSION 2
/*
@@ -58,7 +57,6 @@
/*
* Payload message types
*/
-
#define TIPC_CONN_MSG 0
#define TIPC_MCAST_MSG 1
#define TIPC_NAMED_MSG 2
@@ -67,17 +65,18 @@
/*
* Message header sizes
*/
-
-#define SHORT_H_SIZE 24 /* Connected, in-cluster messages */
-#define DIR_MSG_H_SIZE 32 /* Directly addressed messages */
-#define LONG_H_SIZE 40 /* Named messages */
-#define MCAST_H_SIZE 44 /* Multicast messages */
+#define SHORT_H_SIZE 24 /* In-cluster basic payload message */
+#define BASIC_H_SIZE 32 /* Basic payload message */
+#define NAMED_H_SIZE 40 /* Named payload message */
+#define MCAST_H_SIZE 44 /* Multicast payload message */
#define INT_H_SIZE 40 /* Internal messages */
#define MIN_H_SIZE 24 /* Smallest legal TIPC header size */
#define MAX_H_SIZE 60 /* Largest possible TIPC header size */
#define MAX_MSG_SIZE (MAX_H_SIZE + TIPC_MAX_USER_MSG_SIZE)
+#define TIPC_MEDIA_ADDR_OFFSET 5
+
struct tipc_msg {
__be32 hdr[15];
@@ -119,7 +118,6 @@ static inline void msg_swap_words(struct tipc_msg *msg, u32 a, u32 b)
/*
* Word 0
*/
-
static inline u32 msg_version(struct tipc_msg *m)
{
return msg_bits(m, 0, 29, 7);
@@ -214,7 +212,6 @@ static inline void msg_set_size(struct tipc_msg *m, u32 sz)
/*
* Word 1
*/
-
static inline u32 msg_type(struct tipc_msg *m)
{
return msg_bits(m, 1, 29, 0x7);
@@ -289,7 +286,6 @@ static inline void msg_set_bcast_ack(struct tipc_msg *m, u32 n)
/*
* Word 2
*/
-
static inline u32 msg_ack(struct tipc_msg *m)
{
return msg_bits(m, 2, 16, 0xffff);
@@ -311,30 +307,8 @@ static inline void msg_set_seqno(struct tipc_msg *m, u32 n)
}
/*
- * TIPC may utilize the "link ack #" and "link seq #" fields of a short
- * message header to hold the destination node for the message, since the
- * normal "dest node" field isn't present. This cache is only referenced
- * when required, so populating the cache of a longer message header is
- * harmless (as long as the header has the two link sequence fields present).
- *
- * Note: Host byte order is OK here, since the info never goes off-card.
- */
-
-static inline u32 msg_destnode_cache(struct tipc_msg *m)
-{
- return m->hdr[2];
-}
-
-static inline void msg_set_destnode_cache(struct tipc_msg *m, u32 dnode)
-{
- m->hdr[2] = dnode;
-}
-
-/*
* Words 3-10
*/
-
-
static inline u32 msg_prevnode(struct tipc_msg *m)
{
return msg_word(m, 3);
@@ -377,7 +351,7 @@ static inline void msg_set_mc_netid(struct tipc_msg *m, u32 p)
static inline int msg_short(struct tipc_msg *m)
{
- return msg_hdr_sz(m) == 24;
+ return msg_hdr_sz(m) == SHORT_H_SIZE;
}
static inline u32 msg_orignode(struct tipc_msg *m)
@@ -402,11 +376,6 @@ static inline void msg_set_destnode(struct tipc_msg *m, u32 a)
msg_set_word(m, 7, a);
}
-static inline int msg_is_dest(struct tipc_msg *m, u32 d)
-{
- return msg_short(m) || (msg_destnode(m) == d);
-}
-
static inline u32 msg_nametype(struct tipc_msg *m)
{
return msg_word(m, 8);
@@ -457,7 +426,6 @@ static inline struct tipc_msg *msg_get_wrapped(struct tipc_msg *m)
return (struct tipc_msg *)msg_data(m);
}
-
/*
* Constants and routines used to read and write TIPC internal message headers
*/
@@ -465,7 +433,6 @@ static inline struct tipc_msg *msg_get_wrapped(struct tipc_msg *m)
/*
* Internal message users
*/
-
#define BCAST_PROTOCOL 5
#define MSG_BUNDLER 6
#define LINK_PROTOCOL 7
@@ -479,7 +446,6 @@ static inline struct tipc_msg *msg_get_wrapped(struct tipc_msg *m)
/*
* Connection management protocol message types
*/
-
#define CONN_PROBE 0
#define CONN_PROBE_REPLY 1
#define CONN_ACK 2
@@ -487,14 +453,12 @@ static inline struct tipc_msg *msg_get_wrapped(struct tipc_msg *m)
/*
* Name distributor message types
*/
-
#define PUBLICATION 0
#define WITHDRAWAL 1
/*
* Segmentation message types
*/
-
#define FIRST_FRAGMENT 0
#define FRAGMENT 1
#define LAST_FRAGMENT 2
@@ -502,7 +466,6 @@ static inline struct tipc_msg *msg_get_wrapped(struct tipc_msg *m)
/*
* Link management protocol message types
*/
-
#define STATE_MSG 0
#define RESET_MSG 1
#define ACTIVATE_MSG 2
@@ -516,7 +479,6 @@ static inline struct tipc_msg *msg_get_wrapped(struct tipc_msg *m)
/*
* Config protocol message types
*/
-
#define DSC_REQ_MSG 0
#define DSC_RESP_MSG 1
@@ -524,7 +486,6 @@ static inline struct tipc_msg *msg_get_wrapped(struct tipc_msg *m)
/*
* Word 1
*/
-
static inline u32 msg_seq_gap(struct tipc_msg *m)
{
return msg_bits(m, 1, 16, 0x1fff);
@@ -535,11 +496,20 @@ static inline void msg_set_seq_gap(struct tipc_msg *m, u32 n)
msg_set_bits(m, 1, 16, 0x1fff, n);
}
+static inline u32 msg_node_sig(struct tipc_msg *m)
+{
+ return msg_bits(m, 1, 0, 0xffff);
+}
+
+static inline void msg_set_node_sig(struct tipc_msg *m, u32 n)
+{
+ msg_set_bits(m, 1, 0, 0xffff, n);
+}
+
/*
* Word 2
*/
-
static inline u32 msg_dest_domain(struct tipc_msg *m)
{
return msg_word(m, 2);
@@ -574,7 +544,6 @@ static inline void msg_set_bcgap_to(struct tipc_msg *m, u32 n)
/*
* Word 4
*/
-
static inline u32 msg_last_bcast(struct tipc_msg *m)
{
return msg_bits(m, 4, 16, 0xffff);
@@ -585,12 +554,6 @@ static inline void msg_set_last_bcast(struct tipc_msg *m, u32 n)
msg_set_bits(m, 4, 16, 0xffff, n);
}
-
-static inline u32 msg_fragm_no(struct tipc_msg *m)
-{
- return msg_bits(m, 4, 16, 0xffff);
-}
-
static inline void msg_set_fragm_no(struct tipc_msg *m, u32 n)
{
msg_set_bits(m, 4, 16, 0xffff, n);
@@ -607,12 +570,6 @@ static inline void msg_set_next_sent(struct tipc_msg *m, u32 n)
msg_set_bits(m, 4, 0, 0xffff, n);
}
-
-static inline u32 msg_long_msgno(struct tipc_msg *m)
-{
- return msg_bits(m, 4, 0, 0xffff);
-}
-
static inline void msg_set_long_msgno(struct tipc_msg *m, u32 n)
{
msg_set_bits(m, 4, 0, 0xffff, n);
@@ -635,13 +592,12 @@ static inline u32 msg_link_selector(struct tipc_msg *m)
static inline void msg_set_link_selector(struct tipc_msg *m, u32 n)
{
- msg_set_bits(m, 4, 0, 1, (n & 1));
+ msg_set_bits(m, 4, 0, 1, n);
}
/*
* Word 5
*/
-
static inline u32 msg_session(struct tipc_msg *m)
{
return msg_bits(m, 5, 16, 0xffff);
@@ -659,7 +615,7 @@ static inline u32 msg_probe(struct tipc_msg *m)
static inline void msg_set_probe(struct tipc_msg *m, u32 val)
{
- msg_set_bits(m, 5, 0, 1, (val & 1));
+ msg_set_bits(m, 5, 0, 1, val);
}
static inline char msg_net_plane(struct tipc_msg *m)
@@ -702,11 +658,14 @@ static inline void msg_set_redundant_link(struct tipc_msg *m, u32 r)
msg_set_bits(m, 5, 12, 0x1, r);
}
+static inline char *msg_media_addr(struct tipc_msg *m)
+{
+ return (char *)&m->hdr[TIPC_MEDIA_ADDR_OFFSET];
+}
/*
* Word 9
*/
-
static inline u32 msg_msgcnt(struct tipc_msg *m)
{
return msg_bits(m, 9, 16, 0xffff);
@@ -748,20 +707,11 @@ static inline void msg_set_link_tolerance(struct tipc_msg *m, u32 n)
}
u32 tipc_msg_tot_importance(struct tipc_msg *m);
-void tipc_msg_init(struct tipc_msg *m, u32 user, u32 type,
- u32 hsize, u32 destnode);
+void tipc_msg_init(struct tipc_msg *m, u32 user, u32 type, u32 hsize,
+ u32 destnode);
int tipc_msg_build(struct tipc_msg *hdr, struct iovec const *msg_sect,
- u32 num_sect, unsigned int total_len,
- int max_size, int usrmem, struct sk_buff **buf);
+ unsigned int len, int max_size, struct sk_buff **buf);
-static inline void msg_set_media_addr(struct tipc_msg *m, struct tipc_media_addr *a)
-{
- memcpy(&((int *)m)[5], a, sizeof(*a));
-}
-
-static inline void msg_get_media_addr(struct tipc_msg *m, struct tipc_media_addr *a)
-{
- memcpy(a, &((int *)m)[5], sizeof(*a));
-}
+int tipc_buf_append(struct sk_buff **headbuf, struct sk_buff **buf);
#endif
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-06 10:06:24 +0000