+++ /dev/null
-/*
- * net/9p/fcprint.c
- *
- * Print 9P call.
- *
- * Copyright (C) 2005 by Latchesar Ionkov <lucho@ionkov.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to:
- * Free Software Foundation
- * 51 Franklin Street, Fifth Floor
- * Boston, MA 02111-1301 USA
- *
- */
-#include <linux/module.h>
-#include <linux/errno.h>
-#include <linux/fs.h>
-#include <linux/idr.h>
-#include <net/9p/9p.h>
-
-#ifdef CONFIG_NET_9P_DEBUG
-
-static int
-p9_printqid(char *buf, int buflen, struct p9_qid *q)
-{
- int n;
- char b[10];
-
- n = 0;
- if (q->type & P9_QTDIR)
- b[n++] = 'd';
- if (q->type & P9_QTAPPEND)
- b[n++] = 'a';
- if (q->type & P9_QTAUTH)
- b[n++] = 'A';
- if (q->type & P9_QTEXCL)
- b[n++] = 'l';
- if (q->type & P9_QTTMP)
- b[n++] = 't';
- if (q->type & P9_QTSYMLINK)
- b[n++] = 'L';
- b[n] = '\0';
-
- return scnprintf(buf, buflen, "(%.16llx %x %s)",
- (long long int) q->path, q->version, b);
-}
-
-static int
-p9_printperm(char *buf, int buflen, int perm)
-{
- int n;
- char b[15];
-
- n = 0;
- if (perm & P9_DMDIR)
- b[n++] = 'd';
- if (perm & P9_DMAPPEND)
- b[n++] = 'a';
- if (perm & P9_DMAUTH)
- b[n++] = 'A';
- if (perm & P9_DMEXCL)
- b[n++] = 'l';
- if (perm & P9_DMTMP)
- b[n++] = 't';
- if (perm & P9_DMDEVICE)
- b[n++] = 'D';
- if (perm & P9_DMSOCKET)
- b[n++] = 'S';
- if (perm & P9_DMNAMEDPIPE)
- b[n++] = 'P';
- if (perm & P9_DMSYMLINK)
- b[n++] = 'L';
- b[n] = '\0';
-
- return scnprintf(buf, buflen, "%s%03o", b, perm&077);
-}
-
-static int
-p9_printstat(char *buf, int buflen, struct p9_stat *st, int extended)
-{
- int n;
-
- n = scnprintf(buf, buflen, "'%.*s' '%.*s'", st->name.len,
- st->name.str, st->uid.len, st->uid.str);
- if (extended)
- n += scnprintf(buf+n, buflen-n, "(%d)", st->n_uid);
-
- n += scnprintf(buf+n, buflen-n, " '%.*s'", st->gid.len, st->gid.str);
- if (extended)
- n += scnprintf(buf+n, buflen-n, "(%d)", st->n_gid);
-
- n += scnprintf(buf+n, buflen-n, " '%.*s'", st->muid.len, st->muid.str);
- if (extended)
- n += scnprintf(buf+n, buflen-n, "(%d)", st->n_muid);
-
- n += scnprintf(buf+n, buflen-n, " q ");
- n += p9_printqid(buf+n, buflen-n, &st->qid);
- n += scnprintf(buf+n, buflen-n, " m ");
- n += p9_printperm(buf+n, buflen-n, st->mode);
- n += scnprintf(buf+n, buflen-n, " at %d mt %d l %lld",
- st->atime, st->mtime, (long long int) st->length);
-
- if (extended)
- n += scnprintf(buf+n, buflen-n, " ext '%.*s'",
- st->extension.len, st->extension.str);
-
- return n;
-}
-
-static int
-p9_dumpdata(char *buf, int buflen, u8 *data, int datalen)
-{
- int i, n;
-
- i = n = 0;
- while (i < datalen) {
- n += scnprintf(buf + n, buflen - n, "%02x", data[i]);
- if (i%4 == 3)
- n += scnprintf(buf + n, buflen - n, " ");
- if (i%32 == 31)
- n += scnprintf(buf + n, buflen - n, "\n");
-
- i++;
- }
- n += scnprintf(buf + n, buflen - n, "\n");
-
- return n;
-}
-
-static int
-p9_printdata(char *buf, int buflen, u8 *data, int datalen)
-{
- return p9_dumpdata(buf, buflen, data, datalen < 16?datalen:16);
-}
-
-/**
- * p9_printfcall - decode and print a protocol structure into a buffer
- * @buf: buffer to deposit decoded structure into
- * @buflen: available space in buffer
- * @fc: protocol rpc structure of type &p9_fcall
- * @extended: whether or not session is operating with extended protocol
- */
-
-int
-p9_printfcall(char *buf, int buflen, struct p9_fcall *fc, int extended)
-{
- int i, ret, type, tag;
-
- if (!fc)
- return scnprintf(buf, buflen, "<NULL>");
-
- type = fc->id;
- tag = fc->tag;
-
- ret = 0;
- switch (type) {
- case P9_TVERSION:
- ret += scnprintf(buf+ret, buflen-ret,
- "Tversion tag %u msize %u version '%.*s'", tag,
- fc->params.tversion.msize,
- fc->params.tversion.version.len,
- fc->params.tversion.version.str);
- break;
-
- case P9_RVERSION:
- ret += scnprintf(buf+ret, buflen-ret,
- "Rversion tag %u msize %u version '%.*s'", tag,
- fc->params.rversion.msize,
- fc->params.rversion.version.len,
- fc->params.rversion.version.str);
- break;
-
- case P9_TAUTH:
- ret += scnprintf(buf+ret, buflen-ret,
- "Tauth tag %u afid %d uname '%.*s' aname '%.*s'", tag,
- fc->params.tauth.afid, fc->params.tauth.uname.len,
- fc->params.tauth.uname.str, fc->params.tauth.aname.len,
- fc->params.tauth.aname.str);
- break;
-
- case P9_RAUTH:
- ret += scnprintf(buf+ret, buflen-ret, "Rauth tag %u qid ", tag);
- p9_printqid(buf+ret, buflen-ret, &fc->params.rauth.qid);
- break;
-
- case P9_TATTACH:
- ret += scnprintf(buf+ret, buflen-ret,
- "Tattach tag %u fid %d afid %d uname '%.*s' aname '%.*s'", tag,
- fc->params.tattach.fid, fc->params.tattach.afid,
- fc->params.tattach.uname.len, fc->params.tattach.uname.str,
- fc->params.tattach.aname.len, fc->params.tattach.aname.str);
- break;
-
- case P9_RATTACH:
- ret += scnprintf(buf+ret, buflen-ret, "Rattach tag %u qid ",
- tag);
- p9_printqid(buf+ret, buflen-ret, &fc->params.rattach.qid);
- break;
-
- case P9_RERROR:
- ret += scnprintf(buf+ret, buflen-ret,
- "Rerror tag %u ename '%.*s'", tag,
- fc->params.rerror.error.len,
- fc->params.rerror.error.str);
- if (extended)
- ret += scnprintf(buf+ret, buflen-ret, " ecode %d\n",
- fc->params.rerror.errno);
- break;
-
- case P9_TFLUSH:
- ret += scnprintf(buf+ret, buflen-ret, "Tflush tag %u oldtag %u",
- tag, fc->params.tflush.oldtag);
- break;
-
- case P9_RFLUSH:
- ret += scnprintf(buf+ret, buflen-ret, "Rflush tag %u", tag);
- break;
-
- case P9_TWALK:
- ret += scnprintf(buf+ret, buflen-ret,
- "Twalk tag %u fid %d newfid %d nwname %d", tag,
- fc->params.twalk.fid, fc->params.twalk.newfid,
- fc->params.twalk.nwname);
- for (i = 0; i < fc->params.twalk.nwname; i++)
- ret += scnprintf(buf+ret, buflen-ret, " '%.*s'",
- fc->params.twalk.wnames[i].len,
- fc->params.twalk.wnames[i].str);
- break;
-
- case P9_RWALK:
- ret += scnprintf(buf+ret, buflen-ret, "Rwalk tag %u nwqid %d",
- tag, fc->params.rwalk.nwqid);
- for (i = 0; i < fc->params.rwalk.nwqid; i++)
- ret += p9_printqid(buf+ret, buflen-ret,
- &fc->params.rwalk.wqids[i]);
- break;
-
- case P9_TOPEN:
- ret += scnprintf(buf+ret, buflen-ret,
- "Topen tag %u fid %d mode %d", tag,
- fc->params.topen.fid, fc->params.topen.mode);
- break;
-
- case P9_ROPEN:
- ret += scnprintf(buf+ret, buflen-ret, "Ropen tag %u", tag);
- ret += p9_printqid(buf+ret, buflen-ret, &fc->params.ropen.qid);
- ret += scnprintf(buf+ret, buflen-ret, " iounit %d",
- fc->params.ropen.iounit);
- break;
-
- case P9_TCREATE:
- ret += scnprintf(buf+ret, buflen-ret,
- "Tcreate tag %u fid %d name '%.*s' perm ", tag,
- fc->params.tcreate.fid, fc->params.tcreate.name.len,
- fc->params.tcreate.name.str);
-
- ret += p9_printperm(buf+ret, buflen-ret,
- fc->params.tcreate.perm);
- ret += scnprintf(buf+ret, buflen-ret, " mode %d",
- fc->params.tcreate.mode);
- break;
-
- case P9_RCREATE:
- ret += scnprintf(buf+ret, buflen-ret, "Rcreate tag %u", tag);
- ret += p9_printqid(buf+ret, buflen-ret,
- &fc->params.rcreate.qid);
- ret += scnprintf(buf+ret, buflen-ret, " iounit %d",
- fc->params.rcreate.iounit);
- break;
-
- case P9_TREAD:
- ret += scnprintf(buf+ret, buflen-ret,
- "Tread tag %u fid %d offset %lld count %u", tag,
- fc->params.tread.fid,
- (long long int) fc->params.tread.offset,
- fc->params.tread.count);
- break;
-
- case P9_RREAD:
- ret += scnprintf(buf+ret, buflen-ret,
- "Rread tag %u count %u data ", tag,
- fc->params.rread.count);
- ret += p9_printdata(buf+ret, buflen-ret, fc->params.rread.data,
- fc->params.rread.count);
- break;
-
- case P9_TWRITE:
- ret += scnprintf(buf+ret, buflen-ret,
- "Twrite tag %u fid %d offset %lld count %u data ",
- tag, fc->params.twrite.fid,
- (long long int) fc->params.twrite.offset,
- fc->params.twrite.count);
- ret += p9_printdata(buf+ret, buflen-ret, fc->params.twrite.data,
- fc->params.twrite.count);
- break;
-
- case P9_RWRITE:
- ret += scnprintf(buf+ret, buflen-ret, "Rwrite tag %u count %u",
- tag, fc->params.rwrite.count);
- break;
-
- case P9_TCLUNK:
- ret += scnprintf(buf+ret, buflen-ret, "Tclunk tag %u fid %d",
- tag, fc->params.tclunk.fid);
- break;
-
- case P9_RCLUNK:
- ret += scnprintf(buf+ret, buflen-ret, "Rclunk tag %u", tag);
- break;
-
- case P9_TREMOVE:
- ret += scnprintf(buf+ret, buflen-ret, "Tremove tag %u fid %d",
- tag, fc->params.tremove.fid);
- break;
-
- case P9_RREMOVE:
- ret += scnprintf(buf+ret, buflen-ret, "Rremove tag %u", tag);
- break;
-
- case P9_TSTAT:
- ret += scnprintf(buf+ret, buflen-ret, "Tstat tag %u fid %d",
- tag, fc->params.tstat.fid);
- break;
-
- case P9_RSTAT:
- ret += scnprintf(buf+ret, buflen-ret, "Rstat tag %u ", tag);
- ret += p9_printstat(buf+ret, buflen-ret, &fc->params.rstat.stat,
- extended);
- break;
-
- case P9_TWSTAT:
- ret += scnprintf(buf+ret, buflen-ret, "Twstat tag %u fid %d ",
- tag, fc->params.twstat.fid);
- ret += p9_printstat(buf+ret, buflen-ret,
- &fc->params.twstat.stat, extended);
- break;
-
- case P9_RWSTAT:
- ret += scnprintf(buf+ret, buflen-ret, "Rwstat tag %u", tag);
- break;
-
- default:
- ret += scnprintf(buf+ret, buflen-ret, "unknown type %d", type);
- break;
- }
-
- return ret;
-}
-#else
-int
-p9_printfcall(char *buf, int buflen, struct p9_fcall *fc, int extended)
-{
- return 0;
-}
-#endif /* CONFIG_NET_9P_DEBUG */
-EXPORT_SYMBOL(p9_printfcall);
-