X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=net%2Ftipc%2Fmsg.h;h=6ad070d87702b6f09a4d1da40930aca10f862829;hb=061964fb988ca51087948975da66ff523b3a5852;hp=62d5490636044e41bddb4834aec81dd563bc61de;hpb=93bbad8fe13a25dcf7f3bc628a71d1a7642ae61b;p=linux-2.6

diff --git a/net/tipc/msg.h b/net/tipc/msg.h
index 62d5490636..6ad070d877 100644
--- a/net/tipc/msg.h
+++ b/net/tipc/msg.h
@@ -1,8 +1,8 @@
 /*
  * net/tipc/msg.h: Include file for TIPC message header routines
  *
- * Copyright (c) 2000-2006, Ericsson AB
- * Copyright (c) 2005, Wind River Systems
+ * Copyright (c) 2000-2007, Ericsson AB
+ * Copyright (c) 2005-2007, Wind River Systems
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -40,18 +40,16 @@
 #include "core.h"
 
 #define TIPC_VERSION              2
-#define DATA_LOW                  TIPC_LOW_IMPORTANCE
-#define DATA_MEDIUM               TIPC_MEDIUM_IMPORTANCE
-#define DATA_HIGH                 TIPC_HIGH_IMPORTANCE
-#define DATA_CRITICAL             TIPC_CRITICAL_IMPORTANCE
-#define SHORT_H_SIZE              24	/* Connected,in cluster */
+
+#define SHORT_H_SIZE              24	/* Connected, in-cluster messages */
 #define DIR_MSG_H_SIZE            32	/* Directly addressed messages */
-#define CONN_MSG_H_SIZE           36	/* Routed connected msgs*/
-#define LONG_H_SIZE               40	/* Named Messages */
+#define LONG_H_SIZE               40	/* Named messages */
 #define MCAST_H_SIZE              44	/* Multicast messages */
-#define MAX_H_SIZE                60	/* Inclusive full options */
+#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 LINK_CONFIG               13
 
 
 /*
@@ -71,8 +69,11 @@ static inline void msg_set_word(struct tipc_msg *m, u32 w, u32 val)
 static inline void msg_set_bits(struct tipc_msg *m, u32 w,
 				u32 pos, u32 mask, u32 val)
 {
-	u32 word = msg_word(m,w) & ~(mask << pos);
-	msg_set_word(m, w, (word |= (val << pos)));
+	val = (val & mask) << pos;
+	val = htonl(val);
+	mask = htonl(mask << pos);
+	m->hdr[w] &= ~mask;
+	m->hdr[w] |= val;
 }
 
 /*
@@ -86,7 +87,7 @@ static inline u32 msg_version(struct tipc_msg *m)
 
 static inline void msg_set_version(struct tipc_msg *m)
 {
-	msg_set_bits(m, 0, 29, 0xf, TIPC_VERSION);
+	msg_set_bits(m, 0, 29, 7, TIPC_VERSION);
 }
 
 static inline u32 msg_user(struct tipc_msg *m)
@@ -96,7 +97,7 @@ static inline u32 msg_user(struct tipc_msg *m)
 
 static inline u32 msg_isdata(struct tipc_msg *m)
 {
-	return (msg_user(m) <= DATA_CRITICAL);
+	return (msg_user(m) <= TIPC_CRITICAL_IMPORTANCE);
 }
 
 static inline void msg_set_user(struct tipc_msg *m, u32 n)
@@ -189,18 +190,6 @@ static inline void msg_set_lookup_scope(struct tipc_msg *m, u32 n)
 	msg_set_bits(m, 1, 19, 0x3, n);
 }
 
-static inline void msg_set_options(struct tipc_msg *m, const char *opt, u32 sz)
-{
-	u32 hsz = msg_hdr_sz(m);
-	char *to = (char *)&m->hdr[hsz/4];
-
-	if ((hsz < DIR_MSG_H_SIZE) || ((hsz + sz) > MAX_H_SIZE))
-		return;
-	msg_set_bits(m, 1, 16, 0x7, (hsz - 28)/4);
-	msg_set_hdr_sz(m, hsz + sz);
-	memcpy(to, opt, sz);
-}
-
 static inline u32 msg_bcast_ack(struct tipc_msg *m)
 {
 	return msg_bits(m, 1, 0, 0xffff);
@@ -329,17 +318,6 @@ static inline struct tipc_msg *msg_get_wrapped(struct tipc_msg *m)
 	return (struct tipc_msg *)msg_data(m);
 }
 
-static inline void msg_expand(struct tipc_msg *m, u32 destnode)
-{
-	if (!msg_short(m))
-		return;
-	msg_set_hdr_sz(m, LONG_H_SIZE);
-	msg_set_orignode(m, msg_prevnode(m));
-	msg_set_destnode(m, destnode);
-	memset(&m->hdr[8], 0, 12);
-}
-
-
 
 /*
 		TIPC internal message header format, version 2
@@ -387,7 +365,6 @@ static inline void msg_expand(struct tipc_msg *m, u32 destnode)
 #define  NAME_DISTRIBUTOR     11
 #define  MSG_FRAGMENTER       12
 #define  LINK_CONFIG          13
-#define  INT_H_SIZE           40
 #define  DSC_H_SIZE           40
 
 /*
@@ -662,11 +639,6 @@ static inline void msg_set_remote_node(struct tipc_msg *m, u32 a)
 	msg_set_word(m, msg_hdr_sz(m)/4, a);
 }
 
-static inline int msg_dataoctet(struct tipc_msg *m, u32 pos)
-{
-	return(msg_data(m)[pos + 4] != 0);
-}
-
 static inline void msg_set_dataoctet(struct tipc_msg *m, u32 pos)
 {
 	msg_data(m)[pos + 4] = 1;
@@ -786,15 +758,16 @@ static inline int msg_build(struct tipc_msg *hdr,
 	*buf = buf_acquire(sz);
 	if (!(*buf))
 		return -ENOMEM;
-	memcpy((*buf)->data, (unchar *)hdr, hsz);
+	skb_copy_to_linear_data(*buf, hdr, hsz);
 	for (res = 1, cnt = 0; res && (cnt < num_sect); cnt++) {
 		if (likely(usrmem))
 			res = !copy_from_user((*buf)->data + pos,
 					      msg_sect[cnt].iov_base,
 					      msg_sect[cnt].iov_len);
 		else
-			memcpy((*buf)->data + pos, msg_sect[cnt].iov_base,
-			       msg_sect[cnt].iov_len);
+			skb_copy_to_linear_data_offset(*buf, pos,
+						       msg_sect[cnt].iov_base,
+						       msg_sect[cnt].iov_len);
 		pos += msg_sect[cnt].iov_len;
 	}
 	if (likely(res))