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.
33 write_hdr(uint32_t len, uint8_t type, uint16_t tag)
37 log_debug("enqueuing a packet; len=%"PRIu32" type=%d[%s] tag=%d",
38 len, type, pp_msg_type(type), tag);
41 /* type is one byte, no endiannes issues */
44 evbuffer_add(evb, &len, sizeof(len));
45 evbuffer_add(evb, &type, sizeof(type));
46 evbuffer_add(evb, &tag, sizeof(tag));
50 write_hdr_auto(uint32_t len, uint8_t type)
52 if (++iota_tag == NOTAG)
54 write_hdr(len, type, iota_tag);
58 write_str(uint16_t len, const char *str)
63 evbuffer_add(evb, &len, sizeof(len));
64 evbuffer_add(evb, str, l);
68 write_str_auto(const char *str)
70 write_str(strlen(str), str);
74 write_buf(const void *d, uint32_t len)
77 evbuffer_add(evb, d, len);
84 evbuffer_add(evb, &x, sizeof(x));
88 write_32(uint32_t fid)
91 evbuffer_add(evb, &fid, sizeof(fid));
95 write_16(uint16_t tag)
98 evbuffer_add(evb, &tag, sizeof(tag));
104 evbuffer_add(evb, &x, sizeof(x));
110 tversion(const char *v, uint32_t msize)
117 /* msize[4] version[s] */
118 len = sizeof(msize) + sizeof(sl) + sl;
119 write_hdr(len, Tversion, NOTAG);
125 tattach(uint32_t fid, uint32_t afid, const char *uname, const char *aname)
133 /* fid[4] afid[4] uname[s] aname[s] */
134 len = sizeof(fid) + sizeof(afid) + sizeof(ul) + ul
136 write_hdr_auto(len, Tattach);
139 write_str(ul, uname);
140 write_str(al, aname);
150 write_hdr_auto(len, Tclunk);
155 tflush(uint16_t oldtag)
160 len = sizeof(oldtag);
161 write_hdr_auto(len, Tflush);
166 twalk(uint32_t fid, uint32_t newfid, const char **wnames, size_t nwname)
171 /* fid[4] newfid[4] nwname[2] nwname*(wname[s]) */
172 len = sizeof(fid) + sizeof(newfid) + 2;
173 for (i = 0; i < nwname; ++i)
174 len += 2 + strlen(wnames[i]);
176 write_hdr_auto(len, Twalk);
180 for (i = 0; i < nwname; ++i)
181 write_str_auto(wnames[i]);
185 topen(uint32_t fid, uint8_t mode)
190 len = sizeof(fid) + sizeof(mode);
191 write_hdr_auto(len, Topen);
197 tcreate(uint32_t fid, const char *name, uint32_t perm, uint8_t mode)
202 /* fid[4] name[s] perm[4] mode[1] */
204 len = sizeof(fid) + sizeof(nl) + nl + sizeof(perm) + sizeof(mode);
205 write_hdr_auto(len, Tcreate);
213 tread(uint32_t fid, uint64_t off, uint32_t count)
217 /* fid[4] off[8] count[4] */
218 len = sizeof(fid) + sizeof(off) + sizeof(count);
219 write_hdr_auto(len, Tread);
226 twrite(uint32_t fid, uint64_t off, const void *data, uint32_t count)
230 /* fid[4] off[8] count[4] data[count] */
231 len = sizeof(fid) + sizeof(off) + sizeof(count) + count;
232 write_hdr_auto(len, Twrite);
235 write_buf(data, count);
242 write_hdr_auto(sizeof(fid), Tstat);
247 tremove(uint32_t fid)
250 write_hdr_auto(sizeof(fid), Tremove);