diff options
Diffstat (limited to 'net/9p/fcprint.c')
| -rw-r--r-- | net/9p/fcprint.c | 358 |
1 files changed, 358 insertions, 0 deletions
diff --git a/net/9p/fcprint.c b/net/9p/fcprint.c new file mode 100644 index 00000000000..b1ae8ec57d5 --- /dev/null +++ b/net/9p/fcprint.c @@ -0,0 +1,358 @@ +/* + * 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); +} + +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; +} +EXPORT_SYMBOL(p9_printfcall); +#endif /* CONFIG_NET_9P_DEBUG */ |