2 fb1a36c0 2022-01-09 op * Copyright (c) 2021 Omar Polo <op@omarpolo.com>
4 fb1a36c0 2022-01-09 op * Permission to use, copy, modify, and distribute this software for any
5 fb1a36c0 2022-01-09 op * purpose with or without fee is hereby granted, provided that the above
6 fb1a36c0 2022-01-09 op * copyright notice and this permission notice appear in all copies.
8 fb1a36c0 2022-01-09 op * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 fb1a36c0 2022-01-09 op * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 fb1a36c0 2022-01-09 op * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 fb1a36c0 2022-01-09 op * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 fb1a36c0 2022-01-09 op * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 fb1a36c0 2022-01-09 op * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 fb1a36c0 2022-01-09 op * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 bbcba3ed 2022-01-10 op #include "compat.h"
19 fb1a36c0 2022-01-09 op #include <inttypes.h>
20 fb1a36c0 2022-01-09 op #include <string.h>
22 fb1a36c0 2022-01-09 op #include "kami.h"
23 fb1a36c0 2022-01-09 op #include "log.h"
24 fb1a36c0 2022-01-09 op #include "utils.h"
26 4e93fcbd 2022-01-17 op #include "9pclib.h"
28 fb1a36c0 2022-01-09 op uint16_t iota_tag;
30 fb1a36c0 2022-01-09 op struct evbuffer *evb;
33 fb1a36c0 2022-01-09 op write_hdr(uint32_t len, uint8_t type, uint16_t tag)
35 fb1a36c0 2022-01-09 op len += HEADERSIZE;
37 fb1a36c0 2022-01-09 op log_debug("enqueuing a packet; len=%"PRIu32" type=%d[%s] tag=%d",
38 fb1a36c0 2022-01-09 op len, type, pp_msg_type(type), tag);
40 fb1a36c0 2022-01-09 op len = htole32(len);
41 fb1a36c0 2022-01-09 op /* type is one byte, no endiannes issues */
42 fb1a36c0 2022-01-09 op tag = htole16(tag);
44 fb1a36c0 2022-01-09 op evbuffer_add(evb, &len, sizeof(len));
45 fb1a36c0 2022-01-09 op evbuffer_add(evb, &type, sizeof(type));
46 fb1a36c0 2022-01-09 op evbuffer_add(evb, &tag, sizeof(tag));
50 fb1a36c0 2022-01-09 op write_hdr_auto(uint32_t len, uint8_t type)
52 fb1a36c0 2022-01-09 op if (++iota_tag == NOTAG)
54 fb1a36c0 2022-01-09 op write_hdr(len, type, iota_tag);
58 fb1a36c0 2022-01-09 op write_str(uint16_t len, const char *str)
60 fb1a36c0 2022-01-09 op uint16_t l = len;
62 fb1a36c0 2022-01-09 op len = htole16(len);
63 fb1a36c0 2022-01-09 op evbuffer_add(evb, &len, sizeof(len));
64 fb1a36c0 2022-01-09 op evbuffer_add(evb, str, l);
68 fb1a36c0 2022-01-09 op write_str_auto(const char *str)
70 4e93fcbd 2022-01-17 op if (str == NULL)
73 4e93fcbd 2022-01-17 op write_str(strlen(str), str);
77 fb1a36c0 2022-01-09 op write_buf(const void *d, uint32_t len)
79 fb1a36c0 2022-01-09 op write_32(len);
80 fb1a36c0 2022-01-09 op evbuffer_add(evb, d, len);
84 fb1a36c0 2022-01-09 op write_64(uint64_t x)
86 fb1a36c0 2022-01-09 op x = htole64(x);
87 fb1a36c0 2022-01-09 op evbuffer_add(evb, &x, sizeof(x));
91 fb1a36c0 2022-01-09 op write_32(uint32_t fid)
93 fb1a36c0 2022-01-09 op fid = htole32(fid);
94 fb1a36c0 2022-01-09 op evbuffer_add(evb, &fid, sizeof(fid));
98 fb1a36c0 2022-01-09 op write_16(uint16_t tag)
100 fb1a36c0 2022-01-09 op tag = htole16(tag);
101 fb1a36c0 2022-01-09 op evbuffer_add(evb, &tag, sizeof(tag));
105 fb1a36c0 2022-01-09 op write_8(uint8_t x)
107 fb1a36c0 2022-01-09 op evbuffer_add(evb, &x, sizeof(x));
113 fb1a36c0 2022-01-09 op tversion(const char *v, uint32_t msize)
115 fb1a36c0 2022-01-09 op uint32_t len;
118 fb1a36c0 2022-01-09 op sl = strlen(v);
120 fb1a36c0 2022-01-09 op /* msize[4] version[s] */
121 fb1a36c0 2022-01-09 op len = sizeof(msize) + sizeof(sl) + sl;
122 fb1a36c0 2022-01-09 op write_hdr(len, Tversion, NOTAG);
123 fb1a36c0 2022-01-09 op write_32(msize);
124 fb1a36c0 2022-01-09 op write_str(sl, v);
128 fb1a36c0 2022-01-09 op tattach(uint32_t fid, uint32_t afid, const char *uname, const char *aname)
130 fb1a36c0 2022-01-09 op uint32_t len;
131 fb1a36c0 2022-01-09 op uint16_t ul, al;
133 fb1a36c0 2022-01-09 op ul = strlen(uname);
134 fb1a36c0 2022-01-09 op al = strlen(aname);
136 fb1a36c0 2022-01-09 op /* fid[4] afid[4] uname[s] aname[s] */
137 fb1a36c0 2022-01-09 op len = sizeof(fid) + sizeof(afid) + sizeof(ul) + ul
138 fb1a36c0 2022-01-09 op + sizeof(al) + al;
139 fb1a36c0 2022-01-09 op write_hdr_auto(len, Tattach);
140 fb1a36c0 2022-01-09 op write_fid(fid);
141 fb1a36c0 2022-01-09 op write_fid(afid);
142 fb1a36c0 2022-01-09 op write_str(ul, uname);
143 fb1a36c0 2022-01-09 op write_str(al, aname);
147 fb1a36c0 2022-01-09 op tclunk(uint32_t fid)
149 fb1a36c0 2022-01-09 op uint32_t len;
152 fb1a36c0 2022-01-09 op len = sizeof(fid);
153 fb1a36c0 2022-01-09 op write_hdr_auto(len, Tclunk);
154 fb1a36c0 2022-01-09 op write_fid(fid);
158 fb1a36c0 2022-01-09 op tflush(uint16_t oldtag)
160 fb1a36c0 2022-01-09 op uint32_t len;
162 fb1a36c0 2022-01-09 op /* oldtag[2] */
163 fb1a36c0 2022-01-09 op len = sizeof(oldtag);
164 fb1a36c0 2022-01-09 op write_hdr_auto(len, Tflush);
165 fb1a36c0 2022-01-09 op write_tag(oldtag);
169 fb1a36c0 2022-01-09 op twalk(uint32_t fid, uint32_t newfid, const char **wnames, size_t nwname)
172 fb1a36c0 2022-01-09 op uint32_t len;
174 fb1a36c0 2022-01-09 op /* fid[4] newfid[4] nwname[2] nwname*(wname[s]) */
175 fb1a36c0 2022-01-09 op len = sizeof(fid) + sizeof(newfid) + 2;
176 fb1a36c0 2022-01-09 op for (i = 0; i < nwname; ++i)
177 fb1a36c0 2022-01-09 op len += 2 + strlen(wnames[i]);
179 fb1a36c0 2022-01-09 op write_hdr_auto(len, Twalk);
180 fb1a36c0 2022-01-09 op write_fid(fid);
181 fb1a36c0 2022-01-09 op write_fid(newfid);
182 fb1a36c0 2022-01-09 op write_16(nwname);
183 fb1a36c0 2022-01-09 op for (i = 0; i < nwname; ++i)
184 fb1a36c0 2022-01-09 op write_str_auto(wnames[i]);
188 fb1a36c0 2022-01-09 op topen(uint32_t fid, uint8_t mode)
190 fb1a36c0 2022-01-09 op uint32_t len;
192 fb1a36c0 2022-01-09 op /* fid[4] mode[1] */
193 fb1a36c0 2022-01-09 op len = sizeof(fid) + sizeof(mode);
194 fb1a36c0 2022-01-09 op write_hdr_auto(len, Topen);
195 fb1a36c0 2022-01-09 op write_fid(fid);
196 fb1a36c0 2022-01-09 op write_8(mode);
200 fb1a36c0 2022-01-09 op tcreate(uint32_t fid, const char *name, uint32_t perm, uint8_t mode)
202 fb1a36c0 2022-01-09 op uint32_t len;
205 fb1a36c0 2022-01-09 op /* fid[4] name[s] perm[4] mode[1] */
206 fb1a36c0 2022-01-09 op nl = strlen(name);
207 fb1a36c0 2022-01-09 op len = sizeof(fid) + sizeof(nl) + nl + sizeof(perm) + sizeof(mode);
208 fb1a36c0 2022-01-09 op write_hdr_auto(len, Tcreate);
209 fb1a36c0 2022-01-09 op write_fid(fid);
210 fb1a36c0 2022-01-09 op write_str(nl, name);
211 fb1a36c0 2022-01-09 op write_32(perm);
212 fb1a36c0 2022-01-09 op write_8(mode);
216 fb1a36c0 2022-01-09 op tread(uint32_t fid, uint64_t off, uint32_t count)
218 fb1a36c0 2022-01-09 op uint32_t len;
220 fb1a36c0 2022-01-09 op /* fid[4] off[8] count[4] */
221 fb1a36c0 2022-01-09 op len = sizeof(fid) + sizeof(off) + sizeof(count);
222 fb1a36c0 2022-01-09 op write_hdr_auto(len, Tread);
223 fb1a36c0 2022-01-09 op write_fid(fid);
224 fb1a36c0 2022-01-09 op write_off(off);
225 fb1a36c0 2022-01-09 op write_32(count);
229 fb1a36c0 2022-01-09 op twrite(uint32_t fid, uint64_t off, const void *data, uint32_t count)
231 fb1a36c0 2022-01-09 op uint32_t len;
233 fb1a36c0 2022-01-09 op /* fid[4] off[8] count[4] data[count] */
234 fb1a36c0 2022-01-09 op len = sizeof(fid) + sizeof(off) + sizeof(count) + count;
235 fb1a36c0 2022-01-09 op write_hdr_auto(len, Twrite);
236 fb1a36c0 2022-01-09 op write_fid(fid);
237 fb1a36c0 2022-01-09 op write_off(off);
238 fb1a36c0 2022-01-09 op write_buf(data, count);
242 fb1a36c0 2022-01-09 op tstat(uint32_t fid)
245 fb1a36c0 2022-01-09 op write_hdr_auto(sizeof(fid), Tstat);
246 4e93fcbd 2022-01-17 op write_fid(fid);
250 4e93fcbd 2022-01-17 op twstat(uint32_t fid, const struct np_stat *st)
252 4e93fcbd 2022-01-17 op uint32_t len;
253 9f898869 2022-02-02 op uint16_t stlen, n;
255 4e93fcbd 2022-01-17 op /* fid[4] stat[n] */
257 f55ab68b 2022-01-19 op stlen = NPSTATSIZ(0, 0, 0, 0);
258 4e93fcbd 2022-01-17 op if (st->name != NULL)
259 f55ab68b 2022-01-19 op stlen += strlen(st->name);
260 4e93fcbd 2022-01-17 op if (st->uid != NULL)
261 f55ab68b 2022-01-19 op stlen += strlen(st->uid);
262 f55ab68b 2022-01-19 op if (st->gid != NULL)
263 f55ab68b 2022-01-19 op stlen += strlen(st->gid);
264 4e93fcbd 2022-01-17 op if (st->muid != NULL)
265 f55ab68b 2022-01-19 op stlen += strlen(st->muid);
267 9f898869 2022-02-02 op n = sizeof(stlen) + stlen;
268 9f898869 2022-02-02 op len = sizeof(fid) + sizeof(n) + n;
270 4e93fcbd 2022-01-17 op write_hdr_auto(len, Twstat);
271 fb1a36c0 2022-01-09 op write_fid(fid);
273 f55ab68b 2022-01-19 op write_16(stlen);
274 4e93fcbd 2022-01-17 op write_16(st->type);
275 4e93fcbd 2022-01-17 op write_32(st->dev);
277 4e93fcbd 2022-01-17 op write_8(st->qid.type);
278 344d2bad 2022-01-22 op write_32(st->qid.vers);
279 344d2bad 2022-01-22 op write_64(st->qid.path);
281 4e93fcbd 2022-01-17 op write_32(st->mode);
282 4e93fcbd 2022-01-17 op write_32(st->atime);
283 4e93fcbd 2022-01-17 op write_32(st->mtime);
284 4e93fcbd 2022-01-17 op write_64(st->length);
286 4e93fcbd 2022-01-17 op write_str_auto(st->name);
287 4e93fcbd 2022-01-17 op write_str_auto(st->uid);
288 4e93fcbd 2022-01-17 op write_str_auto(st->gid);
289 4e93fcbd 2022-01-17 op write_str_auto(st->muid);
293 fb1a36c0 2022-01-09 op tremove(uint32_t fid)
296 fb1a36c0 2022-01-09 op write_hdr_auto(sizeof(fid), Tremove);
297 fb1a36c0 2022-01-09 op write_fid(fid);