#ifndef NET_9P_H
#define NET_9P_H
-#ifdef CONFIG_NET_9P_DEBUG
-
/**
* enum p9_debug_flags - bits for mount time debug parameter
* @P9_DEBUG_ERROR: more verbose error messages including original error string
* @P9_DEBUG_TRANS: transport tracing
* @P9_DEBUG_SLABS: memory management tracing
* @P9_DEBUG_FCALL: verbose dump of protocol messages
+ * @P9_DEBUG_FID: fid allocation/deallocation tracking
*
* These flags are passed at mount time to turn on various levels of
* verbosity and tracing which will be output to the system logs.
P9_DEBUG_TRANS = (1<<6),
P9_DEBUG_SLABS = (1<<7),
P9_DEBUG_FCALL = (1<<8),
+ P9_DEBUG_FID = (1<<9),
+ P9_DEBUG_PKT = (1<<10),
};
+#ifdef CONFIG_NET_9P_DEBUG
extern unsigned int p9_debug_level;
#define P9_DPRINTK(level, format, arg...) \
do { \
- if ((p9_debug_level & level) == level) \
- printk(KERN_NOTICE "-- %s (%d): " \
- format , __func__, task_pid_nr(current) , ## arg); \
+ if ((p9_debug_level & level) == level) {\
+ if (level == P9_DEBUG_9P) \
+ printk(KERN_NOTICE "(%8.8d) " \
+ format , task_pid_nr(current) , ## arg); \
+ else \
+ printk(KERN_NOTICE "-- %s (%d): " \
+ format , __func__, task_pid_nr(current) , ## arg); \
+ } \
} while (0)
-#define PRINT_FCALL_ERROR(s, fcall) P9_DPRINTK(P9_DEBUG_ERROR, \
- "%s: %.*s\n", s, fcall?fcall->params.rerror.error.len:0, \
- fcall?fcall->params.rerror.error.str:"");
-
#else
#define P9_DPRINTK(level, format, arg...) do { } while (0)
-#define PRINT_FCALL_ERROR(s, fcall) do { } while (0)
#endif
#define P9_EPRINTK(level, format, arg...) \
* See Also: http://plan9.bell-labs.com/magic/man2html/2/stat
*/
-struct p9_stat {
- u16 size;
- u16 type;
- u32 dev;
- struct p9_qid qid;
- u32 mode;
- u32 atime;
- u32 mtime;
- u64 length;
- struct p9_str name;
- struct p9_str uid;
- struct p9_str gid;
- struct p9_str muid;
- struct p9_str extension; /* 9p2000.u extensions */
- u32 n_uid; /* 9p2000.u extensions */
- u32 n_gid; /* 9p2000.u extensions */
- u32 n_muid; /* 9p2000.u extensions */
-};
-
-/*
- * file metadata (stat) structure used to create Twstat message
- * The is identical to &p9_stat, but the strings don't point to
- * the same memory block and should be freed separately
- *
- * See Also: http://plan9.bell-labs.com/magic/man2html/2/stat
- */
-
struct p9_wstat {
u16 size;
u16 type;
};
struct p9_rstat {
- struct p9_stat stat;
+ struct p9_wstat stat;
};
struct p9_twstat {
u32 fid;
- struct p9_stat stat;
+ struct p9_wstat stat;
};
struct p9_rwstat {
* @size: prefixed length of the structure
* @id: protocol operating identifier of type &p9_msg_t
* @tag: transaction id of the request
+ * @offset: used by marshalling routines to track currentposition in buffer
+ * @capacity: used by marshalling routines to track total capacity
* @sdata: payload
- * @params: per-operation parameters
*
* &p9_fcall represents the structure for all 9P RPC
* transactions. Requests are packaged into fcalls, and reponses
u32 size;
u8 id;
u16 tag;
- void *sdata;
-
- union {
- struct p9_tversion tversion;
- struct p9_rversion rversion;
- struct p9_tauth tauth;
- struct p9_rauth rauth;
- struct p9_rerror rerror;
- struct p9_tflush tflush;
- struct p9_rflush rflush;
- struct p9_tattach tattach;
- struct p9_rattach rattach;
- struct p9_twalk twalk;
- struct p9_rwalk rwalk;
- struct p9_topen topen;
- struct p9_ropen ropen;
- struct p9_tcreate tcreate;
- struct p9_rcreate rcreate;
- struct p9_tread tread;
- struct p9_rread rread;
- struct p9_twrite twrite;
- struct p9_rwrite rwrite;
- struct p9_tclunk tclunk;
- struct p9_rclunk rclunk;
- struct p9_tremove tremove;
- struct p9_rremove rremove;
- struct p9_tstat tstat;
- struct p9_rstat rstat;
- struct p9_twstat twstat;
- struct p9_rwstat rwstat;
- } params;
+
+ size_t offset;
+ size_t capacity;
+
+ uint8_t *sdata;
};
struct p9_idpool;
-int p9_deserialize_stat(void *buf, u32 buflen, struct p9_stat *stat,
- int dotu);
-int p9_deserialize_fcall(void *buf, u32 buflen, struct p9_fcall *fc, int dotu);
-void p9_set_tag(struct p9_fcall *fc, u16 tag);
-struct p9_fcall *p9_create_tversion(u32 msize, char *version);
-struct p9_fcall *p9_create_tattach(u32 fid, u32 afid, char *uname,
- char *aname, u32 n_uname, int dotu);
-struct p9_fcall *p9_create_tauth(u32 afid, char *uname, char *aname,
- u32 n_uname, int dotu);
-struct p9_fcall *p9_create_tflush(u16 oldtag);
-struct p9_fcall *p9_create_twalk(u32 fid, u32 newfid, u16 nwname,
- char **wnames);
-struct p9_fcall *p9_create_topen(u32 fid, u8 mode);
-struct p9_fcall *p9_create_tcreate(u32 fid, char *name, u32 perm, u8 mode,
- char *extension, int dotu);
-struct p9_fcall *p9_create_tread(u32 fid, u64 offset, u32 count);
-struct p9_fcall *p9_create_twrite(u32 fid, u64 offset, u32 count,
- const char *data);
-struct p9_fcall *p9_create_twrite_u(u32 fid, u64 offset, u32 count,
- const char __user *data);
-struct p9_fcall *p9_create_tclunk(u32 fid);
-struct p9_fcall *p9_create_tremove(u32 fid);
-struct p9_fcall *p9_create_tstat(u32 fid);
-struct p9_fcall *p9_create_twstat(u32 fid, struct p9_wstat *wstat,
- int dotu);
-
-int p9_printfcall(char *buf, int buflen, struct p9_fcall *fc, int dotu);
int p9_errstr2errno(char *errstr, int len);
struct p9_idpool *p9_idpool_create(void);
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