2 * Copyright (c) 2021 Omar Polo <op@omarpolo.com>
4 * Permission to use, copy, modify, and distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
32 write_hdr(uint32_t len, uint8_t type, uint16_t tag)
36 log_debug("enqueuing a packet; len=%"PRIu32" type=%d[%s] tag=%d",
37 len, type, pp_msg_type(type), tag);
40 /* type is one byte, no endiannes issues */
43 evbuffer_add(evb, &len, sizeof(len));
44 evbuffer_add(evb, &type, sizeof(type));
45 evbuffer_add(evb, &tag, sizeof(tag));
49 write_hdr_auto(uint32_t len, uint8_t type)
51 if (++iota_tag == NOTAG)
53 write_hdr(len, type, iota_tag);
57 write_str(uint16_t len, const char *str)
62 evbuffer_add(evb, &len, sizeof(len));
63 evbuffer_add(evb, str, l);
67 write_str_auto(const char *str)
69 write_str(strlen(str), str);
73 write_buf(const void *d, uint32_t len)
76 evbuffer_add(evb, d, len);
83 evbuffer_add(evb, &x, sizeof(x));
87 write_32(uint32_t fid)
90 evbuffer_add(evb, &fid, sizeof(fid));
94 write_16(uint16_t tag)
97 evbuffer_add(evb, &tag, sizeof(tag));
103 evbuffer_add(evb, &x, sizeof(x));
109 tversion(const char *v, uint32_t msize)
116 /* msize[4] version[s] */
117 len = sizeof(msize) + sizeof(sl) + sl;
118 write_hdr(len, Tversion, NOTAG);
124 tattach(uint32_t fid, uint32_t afid, const char *uname, const char *aname)
132 /* fid[4] afid[4] uname[s] aname[s] */
133 len = sizeof(fid) + sizeof(afid) + sizeof(ul) + ul
135 write_hdr_auto(len, Tattach);
138 write_str(ul, uname);
139 write_str(al, aname);
149 write_hdr_auto(len, Tclunk);
154 tflush(uint16_t oldtag)
159 len = sizeof(oldtag);
160 write_hdr_auto(len, Tflush);
165 twalk(uint32_t fid, uint32_t newfid, const char **wnames, size_t nwname)
170 /* fid[4] newfid[4] nwname[2] nwname*(wname[s]) */
171 len = sizeof(fid) + sizeof(newfid) + 2;
172 for (i = 0; i < nwname; ++i)
173 len += 2 + strlen(wnames[i]);
175 write_hdr_auto(len, Twalk);
179 for (i = 0; i < nwname; ++i)
180 write_str_auto(wnames[i]);
184 topen(uint32_t fid, uint8_t mode)
189 len = sizeof(fid) + sizeof(mode);
190 write_hdr_auto(len, Topen);
196 tcreate(uint32_t fid, const char *name, uint32_t perm, uint8_t mode)
201 /* fid[4] name[s] perm[4] mode[1] */
203 len = sizeof(fid) + sizeof(nl) + nl + sizeof(perm) + sizeof(mode);
204 write_hdr_auto(len, Tcreate);
212 tread(uint32_t fid, uint64_t off, uint32_t count)
216 /* fid[4] off[8] count[4] */
217 len = sizeof(fid) + sizeof(off) + sizeof(count);
218 write_hdr_auto(len, Tread);
225 twrite(uint32_t fid, uint64_t off, const void *data, uint32_t count)
229 /* fid[4] off[8] count[4] data[count] */
230 len = sizeof(fid) + sizeof(off) + sizeof(count) + count;
231 write_hdr_auto(len, Twrite);
234 write_buf(data, count);
241 write_hdr_auto(sizeof(fid), Tstat);
246 tremove(uint32_t fid)
249 write_hdr_auto(sizeof(fid), Tremove);