accf_http.c revision 1.2.2.2
1 1.2.2.2 haad /* $NetBSD: accf_http.c,v 1.2.2.2 2008/10/19 22:17:46 haad Exp $ */ 2 1.2.2.2 haad 3 1.2.2.2 haad /*- 4 1.2.2.2 haad * Copyright (c) 2000 Paycounter, Inc. 5 1.2.2.2 haad * Author: Alfred Perlstein <alfred (at) paycounter.com>, <alfred (at) FreeBSD.org> 6 1.2.2.2 haad * All rights reserved. 7 1.2.2.2 haad * 8 1.2.2.2 haad * Redistribution and use in source and binary forms, with or without 9 1.2.2.2 haad * modification, are permitted provided that the following conditions 10 1.2.2.2 haad * are met: 11 1.2.2.2 haad * 1. Redistributions of source code must retain the above copyright 12 1.2.2.2 haad * notice, this list of conditions and the following disclaimer. 13 1.2.2.2 haad * 2. Redistributions in binary form must reproduce the above copyright 14 1.2.2.2 haad * notice, this list of conditions and the following disclaimer in the 15 1.2.2.2 haad * documentation and/or other materials provided with the distribution. 16 1.2.2.2 haad * 17 1.2.2.2 haad * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 1.2.2.2 haad * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 1.2.2.2 haad * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 1.2.2.2 haad * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 1.2.2.2 haad * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 1.2.2.2 haad * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 1.2.2.2 haad * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 1.2.2.2 haad * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 1.2.2.2 haad * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 1.2.2.2 haad * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 1.2.2.2 haad * SUCH DAMAGE. 28 1.2.2.2 haad */ 29 1.2.2.2 haad 30 1.2.2.2 haad #include <sys/cdefs.h> 31 1.2.2.2 haad __KERNEL_RCSID(0, "$NetBSD: accf_http.c,v 1.2.2.2 2008/10/19 22:17:46 haad Exp $"); 32 1.2.2.2 haad 33 1.2.2.2 haad #define ACCEPT_FILTER_MOD 34 1.2.2.2 haad 35 1.2.2.2 haad #include <sys/param.h> 36 1.2.2.2 haad #include <sys/kernel.h> 37 1.2.2.2 haad #include <sys/mbuf.h> 38 1.2.2.2 haad #include <sys/lkm.h> 39 1.2.2.2 haad #include <sys/signalvar.h> 40 1.2.2.2 haad #include <sys/sysctl.h> 41 1.2.2.2 haad #include <sys/socket.h> 42 1.2.2.2 haad #include <sys/socketvar.h> 43 1.2.2.2 haad 44 1.2.2.2 haad #include <netinet/accept_filter.h> 45 1.2.2.2 haad 46 1.2.2.2 haad /* check for GET/HEAD */ 47 1.2.2.2 haad static void sohashttpget(struct socket *so, void *arg, int waitflag); 48 1.2.2.2 haad /* check for HTTP/1.0 or HTTP/1.1 */ 49 1.2.2.2 haad static void soparsehttpvers(struct socket *so, void *arg, int waitflag); 50 1.2.2.2 haad /* check for end of HTTP/1.x request */ 51 1.2.2.2 haad static void soishttpconnected(struct socket *so, void *arg, int waitflag); 52 1.2.2.2 haad /* strcmp on an mbuf chain */ 53 1.2.2.2 haad static int mbufstrcmp(struct mbuf *m, struct mbuf *npkt, int offset, const char *cmp); 54 1.2.2.2 haad /* strncmp on an mbuf chain */ 55 1.2.2.2 haad static int mbufstrncmp(struct mbuf *m, struct mbuf *npkt, int offset, 56 1.2.2.2 haad int len, const char *cmp); 57 1.2.2.2 haad /* socketbuffer is full */ 58 1.2.2.2 haad static int sbfull(struct sockbuf *sb); 59 1.2.2.2 haad 60 1.2.2.2 haad static struct accept_filter accf_http_filter = { 61 1.2.2.2 haad .accf_name = "httpready", 62 1.2.2.2 haad .accf_callback = sohashttpget, 63 1.2.2.2 haad }; 64 1.2.2.2 haad 65 1.2.2.2 haad /* 66 1.2.2.2 haad * Names of HTTP Accept filter sysctl objects 67 1.2.2.2 haad */ 68 1.2.2.2 haad 69 1.2.2.2 haad #define ACCFCTL_PARSEVER 1 /* Parse HTTP version */ 70 1.2.2.2 haad 71 1.2.2.2 haad static int parse_http_version = 1; 72 1.2.2.2 haad 73 1.2.2.2 haad SYSCTL_SETUP(sysctl_net_inet_accf__http_setup, "sysctl net.inet.accf.http subtree setup") 74 1.2.2.2 haad { 75 1.2.2.2 haad sysctl_createv(clog, 0, NULL, NULL, 76 1.2.2.2 haad CTLFLAG_PERMANENT, 77 1.2.2.2 haad CTLTYPE_NODE, "net", NULL, 78 1.2.2.2 haad NULL, 0, NULL, 0, 79 1.2.2.2 haad CTL_NET, CTL_EOL); 80 1.2.2.2 haad sysctl_createv(clog, 0, NULL, NULL, 81 1.2.2.2 haad CTLFLAG_PERMANENT, 82 1.2.2.2 haad CTLTYPE_NODE, "inet", NULL, 83 1.2.2.2 haad NULL, 0, NULL, 0, 84 1.2.2.2 haad CTL_NET, PF_INET, CTL_EOL); 85 1.2.2.2 haad sysctl_createv(clog, 0, NULL, NULL, 86 1.2.2.2 haad CTLFLAG_PERMANENT, 87 1.2.2.2 haad CTLTYPE_NODE, "accf", NULL, 88 1.2.2.2 haad NULL, 0, NULL, 0, 89 1.2.2.2 haad CTL_NET, PF_INET, SO_ACCEPTFILTER, CTL_EOL); 90 1.2.2.2 haad sysctl_createv(clog, 0, NULL, NULL, 91 1.2.2.2 haad CTLFLAG_PERMANENT, 92 1.2.2.2 haad CTLTYPE_NODE, "http", 93 1.2.2.2 haad SYSCTL_DESCR("HTTP accept filter"), 94 1.2.2.2 haad NULL, 0, NULL, 0, 95 1.2.2.2 haad CTL_NET, PF_INET, SO_ACCEPTFILTER, ACCF_HTTP, CTL_EOL); 96 1.2.2.2 haad sysctl_createv(clog, 0, NULL, NULL, 97 1.2.2.2 haad CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 98 1.2.2.2 haad CTLTYPE_INT, "parsehttpversion", 99 1.2.2.2 haad SYSCTL_DESCR("Parse http version so that non " 100 1.2.2.2 haad "1.x requests work"), 101 1.2.2.2 haad NULL, 0, &parse_http_version, 0, 102 1.2.2.2 haad CTL_NET, PF_INET, SO_ACCEPTFILTER, ACCF_HTTP, 103 1.2.2.2 haad ACCFCTL_PARSEVER, CTL_EOL); 104 1.2.2.2 haad } 105 1.2.2.2 haad 106 1.2.2.2 haad void accf_httpattach(int); 107 1.2.2.2 haad void accf_httpattach(int num) 108 1.2.2.2 haad { 109 1.2.2.2 haad accept_filt_generic_mod_event(NULL, LKM_E_LOAD, &accf_http_filter); 110 1.2.2.2 haad } 111 1.2.2.2 haad 112 1.2.2.2 haad /* 113 1.2.2.2 haad * This code is to make HTTP ready accept filer as LKM. 114 1.2.2.2 haad * To compile as LKM we need to move this set of code into 115 1.2.2.2 haad * another file and include this file for compilation when 116 1.2.2.2 haad * making LKM 117 1.2.2.2 haad */ 118 1.2.2.2 haad 119 1.2.2.2 haad #ifdef _LKM 120 1.2.2.2 haad static int accf_http_handle(struct lkm_table * lkmtp, int cmd); 121 1.2.2.2 haad int accf_http_lkmentry(struct lkm_table * lkmtp, int cmd, int ver); 122 1.2.2.2 haad 123 1.2.2.2 haad MOD_MISC("accf_http"); 124 1.2.2.2 haad 125 1.2.2.2 haad static int accf_http_handle(struct lkm_table * lkmtp, int cmd) 126 1.2.2.2 haad { 127 1.2.2.2 haad 128 1.2.2.2 haad return accept_filt_generic_mod_event(lkmtp, cmd, &accf_http_filter); 129 1.2.2.2 haad } 130 1.2.2.2 haad 131 1.2.2.2 haad /* 132 1.2.2.2 haad * the module entry point. 133 1.2.2.2 haad */ 134 1.2.2.2 haad int 135 1.2.2.2 haad accf_http_lkmentry(struct lkm_table *lkmtp, int cmd, int ver) 136 1.2.2.2 haad { 137 1.2.2.2 haad DISPATCH(lkmtp, cmd, ver, accf_http_handle, accf_http_handle, 138 1.2.2.2 haad accf_http_handle) 139 1.2.2.2 haad } 140 1.2.2.2 haad #endif 141 1.2.2.2 haad 142 1.2.2.2 haad #ifdef ACCF_HTTP_DEBUG 143 1.2.2.2 haad #define DPRINT(fmt, args...) \ 144 1.2.2.2 haad do { \ 145 1.2.2.2 haad printf("%s:%d: " fmt "\n", __func__, __LINE__, ##args); \ 146 1.2.2.2 haad } while (0) 147 1.2.2.2 haad #else 148 1.2.2.2 haad #define DPRINT(fmt, args...) 149 1.2.2.2 haad #endif 150 1.2.2.2 haad 151 1.2.2.2 haad static int 152 1.2.2.2 haad sbfull(struct sockbuf *sb) 153 1.2.2.2 haad { 154 1.2.2.2 haad 155 1.2.2.2 haad DPRINT("sbfull, cc(%ld) >= hiwat(%ld): %d, " 156 1.2.2.2 haad "mbcnt(%ld) >= mbmax(%ld): %d", 157 1.2.2.2 haad sb->sb_cc, sb->sb_hiwat, sb->sb_cc >= sb->sb_hiwat, 158 1.2.2.2 haad sb->sb_mbcnt, sb->sb_mbmax, sb->sb_mbcnt >= sb->sb_mbmax); 159 1.2.2.2 haad return (sb->sb_cc >= sb->sb_hiwat || sb->sb_mbcnt >= sb->sb_mbmax); 160 1.2.2.2 haad } 161 1.2.2.2 haad 162 1.2.2.2 haad /* 163 1.2.2.2 haad * start at mbuf m, (must provide npkt if exists) 164 1.2.2.2 haad * starting at offset in m compare characters in mbuf chain for 'cmp' 165 1.2.2.2 haad */ 166 1.2.2.2 haad static int 167 1.2.2.2 haad mbufstrcmp(struct mbuf *m, struct mbuf *npkt, int offset, const char *cmp) 168 1.2.2.2 haad { 169 1.2.2.2 haad struct mbuf *n; 170 1.2.2.2 haad 171 1.2.2.2 haad for (; m != NULL; m = n) { 172 1.2.2.2 haad n = npkt; 173 1.2.2.2 haad if (npkt) 174 1.2.2.2 haad npkt = npkt->m_nextpkt; 175 1.2.2.2 haad for (; m; m = m->m_next) { 176 1.2.2.2 haad for (; offset < m->m_len; offset++, cmp++) { 177 1.2.2.2 haad if (*cmp == '\0') 178 1.2.2.2 haad return (1); 179 1.2.2.2 haad else if (*cmp != *(mtod(m, char *) + offset)) 180 1.2.2.2 haad return (0); 181 1.2.2.2 haad } 182 1.2.2.2 haad if (*cmp == '\0') 183 1.2.2.2 haad return (1); 184 1.2.2.2 haad offset = 0; 185 1.2.2.2 haad } 186 1.2.2.2 haad } 187 1.2.2.2 haad return (0); 188 1.2.2.2 haad } 189 1.2.2.2 haad 190 1.2.2.2 haad /* 191 1.2.2.2 haad * start at mbuf m, (must provide npkt if exists) 192 1.2.2.2 haad * starting at offset in m compare characters in mbuf chain for 'cmp' 193 1.2.2.2 haad * stop at 'max' characters 194 1.2.2.2 haad */ 195 1.2.2.2 haad static int 196 1.2.2.2 haad mbufstrncmp(struct mbuf *m, struct mbuf *npkt, int offset, int len, const char *cmp) 197 1.2.2.2 haad { 198 1.2.2.2 haad struct mbuf *n; 199 1.2.2.2 haad 200 1.2.2.2 haad for (; m != NULL; m = n) { 201 1.2.2.2 haad n = npkt; 202 1.2.2.2 haad if (npkt) 203 1.2.2.2 haad npkt = npkt->m_nextpkt; 204 1.2.2.2 haad for (; m; m = m->m_next) { 205 1.2.2.2 haad for (; offset < m->m_len; offset++, cmp++, len--) { 206 1.2.2.2 haad if (len == 0 || *cmp == '\0') 207 1.2.2.2 haad return (1); 208 1.2.2.2 haad else if (*cmp != *(mtod(m, char *) + offset)) 209 1.2.2.2 haad return (0); 210 1.2.2.2 haad } 211 1.2.2.2 haad if (len == 0 || *cmp == '\0') 212 1.2.2.2 haad return (1); 213 1.2.2.2 haad offset = 0; 214 1.2.2.2 haad } 215 1.2.2.2 haad } 216 1.2.2.2 haad return (0); 217 1.2.2.2 haad } 218 1.2.2.2 haad 219 1.2.2.2 haad #define STRSETUP(sptr, slen, str) \ 220 1.2.2.2 haad do { \ 221 1.2.2.2 haad sptr = str; \ 222 1.2.2.2 haad slen = sizeof(str) - 1; \ 223 1.2.2.2 haad } while(0) 224 1.2.2.2 haad 225 1.2.2.2 haad static void 226 1.2.2.2 haad sohashttpget(struct socket *so, void *arg, int waitflag) 227 1.2.2.2 haad { 228 1.2.2.2 haad 229 1.2.2.2 haad if ((so->so_state & SS_CANTRCVMORE) == 0 && !sbfull(&so->so_rcv)) { 230 1.2.2.2 haad struct mbuf *m; 231 1.2.2.2 haad const char *cmp; 232 1.2.2.2 haad int cmplen, cc; 233 1.2.2.2 haad 234 1.2.2.2 haad m = so->so_rcv.sb_mb; 235 1.2.2.2 haad cc = so->so_rcv.sb_cc - 1; 236 1.2.2.2 haad if (cc < 1) 237 1.2.2.2 haad return; 238 1.2.2.2 haad switch (*mtod(m, char *)) { 239 1.2.2.2 haad case 'G': 240 1.2.2.2 haad STRSETUP(cmp, cmplen, "ET "); 241 1.2.2.2 haad break; 242 1.2.2.2 haad case 'H': 243 1.2.2.2 haad STRSETUP(cmp, cmplen, "EAD "); 244 1.2.2.2 haad break; 245 1.2.2.2 haad default: 246 1.2.2.2 haad goto fallout; 247 1.2.2.2 haad } 248 1.2.2.2 haad if (cc < cmplen) { 249 1.2.2.2 haad if (mbufstrncmp(m, m->m_nextpkt, 1, cc, cmp) == 1) { 250 1.2.2.2 haad DPRINT("short cc (%d) but mbufstrncmp ok", cc); 251 1.2.2.2 haad return; 252 1.2.2.2 haad } else { 253 1.2.2.2 haad DPRINT("short cc (%d) mbufstrncmp failed", cc); 254 1.2.2.2 haad goto fallout; 255 1.2.2.2 haad } 256 1.2.2.2 haad } 257 1.2.2.2 haad if (mbufstrcmp(m, m->m_nextpkt, 1, cmp) == 1) { 258 1.2.2.2 haad DPRINT("mbufstrcmp ok"); 259 1.2.2.2 haad if (parse_http_version == 0) 260 1.2.2.2 haad soishttpconnected(so, arg, waitflag); 261 1.2.2.2 haad else 262 1.2.2.2 haad soparsehttpvers(so, arg, waitflag); 263 1.2.2.2 haad return; 264 1.2.2.2 haad } 265 1.2.2.2 haad DPRINT("mbufstrcmp bad"); 266 1.2.2.2 haad } 267 1.2.2.2 haad 268 1.2.2.2 haad fallout: 269 1.2.2.2 haad DPRINT("fallout"); 270 1.2.2.2 haad so->so_upcall = NULL; 271 1.2.2.2 haad so->so_rcv.sb_flags &= ~SB_UPCALL; 272 1.2.2.2 haad soisconnected(so); 273 1.2.2.2 haad return; 274 1.2.2.2 haad } 275 1.2.2.2 haad 276 1.2.2.2 haad static void 277 1.2.2.2 haad soparsehttpvers(struct socket *so, void *arg, int waitflag) 278 1.2.2.2 haad { 279 1.2.2.2 haad struct mbuf *m, *n; 280 1.2.2.2 haad int i, cc, spaces, inspaces; 281 1.2.2.2 haad 282 1.2.2.2 haad if ((so->so_state & SS_CANTRCVMORE) != 0 || sbfull(&so->so_rcv)) 283 1.2.2.2 haad goto fallout; 284 1.2.2.2 haad 285 1.2.2.2 haad m = so->so_rcv.sb_mb; 286 1.2.2.2 haad cc = so->so_rcv.sb_cc; 287 1.2.2.2 haad inspaces = spaces = 0; 288 1.2.2.2 haad for (m = so->so_rcv.sb_mb; m; m = n) { 289 1.2.2.2 haad n = m->m_nextpkt; 290 1.2.2.2 haad for (; m; m = m->m_next) { 291 1.2.2.2 haad for (i = 0; i < m->m_len; i++, cc--) { 292 1.2.2.2 haad switch (*(mtod(m, char *) + i)) { 293 1.2.2.2 haad case ' ': 294 1.2.2.2 haad /* tabs? '\t' */ 295 1.2.2.2 haad if (!inspaces) { 296 1.2.2.2 haad spaces++; 297 1.2.2.2 haad inspaces = 1; 298 1.2.2.2 haad } 299 1.2.2.2 haad break; 300 1.2.2.2 haad case '\r': 301 1.2.2.2 haad case '\n': 302 1.2.2.2 haad DPRINT("newline"); 303 1.2.2.2 haad goto fallout; 304 1.2.2.2 haad default: 305 1.2.2.2 haad if (spaces != 2) { 306 1.2.2.2 haad inspaces = 0; 307 1.2.2.2 haad break; 308 1.2.2.2 haad } 309 1.2.2.2 haad 310 1.2.2.2 haad /* 311 1.2.2.2 haad * if we don't have enough characters 312 1.2.2.2 haad * left (cc < sizeof("HTTP/1.0") - 1) 313 1.2.2.2 haad * then see if the remaining ones 314 1.2.2.2 haad * are a request we can parse. 315 1.2.2.2 haad */ 316 1.2.2.2 haad if (cc < sizeof("HTTP/1.0") - 1) { 317 1.2.2.2 haad if (mbufstrncmp(m, n, i, cc, 318 1.2.2.2 haad "HTTP/1.") == 1) { 319 1.2.2.2 haad DPRINT("ok"); 320 1.2.2.2 haad goto readmore; 321 1.2.2.2 haad } else { 322 1.2.2.2 haad DPRINT("bad"); 323 1.2.2.2 haad goto fallout; 324 1.2.2.2 haad } 325 1.2.2.2 haad } else if ( 326 1.2.2.2 haad mbufstrcmp(m, n, i, "HTTP/1.0") || 327 1.2.2.2 haad mbufstrcmp(m, n, i, "HTTP/1.1")) { 328 1.2.2.2 haad DPRINT("ok"); 329 1.2.2.2 haad soishttpconnected(so, 330 1.2.2.2 haad arg, waitflag); 331 1.2.2.2 haad return; 332 1.2.2.2 haad } else { 333 1.2.2.2 haad DPRINT("bad"); 334 1.2.2.2 haad goto fallout; 335 1.2.2.2 haad } 336 1.2.2.2 haad } 337 1.2.2.2 haad } 338 1.2.2.2 haad } 339 1.2.2.2 haad } 340 1.2.2.2 haad readmore: 341 1.2.2.2 haad DPRINT("readmore"); 342 1.2.2.2 haad /* 343 1.2.2.2 haad * if we hit here we haven't hit something 344 1.2.2.2 haad * we don't understand or a newline, so try again 345 1.2.2.2 haad */ 346 1.2.2.2 haad so->so_upcall = soparsehttpvers; 347 1.2.2.2 haad so->so_rcv.sb_flags |= SB_UPCALL; 348 1.2.2.2 haad return; 349 1.2.2.2 haad 350 1.2.2.2 haad fallout: 351 1.2.2.2 haad DPRINT("fallout"); 352 1.2.2.2 haad so->so_upcall = NULL; 353 1.2.2.2 haad so->so_rcv.sb_flags &= ~SB_UPCALL; 354 1.2.2.2 haad soisconnected(so); 355 1.2.2.2 haad return; 356 1.2.2.2 haad } 357 1.2.2.2 haad 358 1.2.2.2 haad 359 1.2.2.2 haad #define NCHRS 3 360 1.2.2.2 haad 361 1.2.2.2 haad static void 362 1.2.2.2 haad soishttpconnected(struct socket *so, void *arg, int waitflag) 363 1.2.2.2 haad { 364 1.2.2.2 haad char a, b, c; 365 1.2.2.2 haad struct mbuf *m, *n; 366 1.2.2.2 haad int ccleft, copied; 367 1.2.2.2 haad 368 1.2.2.2 haad DPRINT("start"); 369 1.2.2.2 haad if ((so->so_state & SS_CANTRCVMORE) != 0 || sbfull(&so->so_rcv)) 370 1.2.2.2 haad goto gotit; 371 1.2.2.2 haad 372 1.2.2.2 haad /* 373 1.2.2.2 haad * Walk the socketbuffer and copy the last NCHRS (3) into a, b, and c 374 1.2.2.2 haad * copied - how much we've copied so far 375 1.2.2.2 haad * ccleft - how many bytes remaining in the socketbuffer 376 1.2.2.2 haad * just loop over the mbufs subtracting from 'ccleft' until we only 377 1.2.2.2 haad * have NCHRS left 378 1.2.2.2 haad */ 379 1.2.2.2 haad copied = 0; 380 1.2.2.2 haad ccleft = so->so_rcv.sb_cc; 381 1.2.2.2 haad if (ccleft < NCHRS) 382 1.2.2.2 haad goto readmore; 383 1.2.2.2 haad a = b = c = '\0'; 384 1.2.2.2 haad for (m = so->so_rcv.sb_mb; m; m = n) { 385 1.2.2.2 haad n = m->m_nextpkt; 386 1.2.2.2 haad for (; m; m = m->m_next) { 387 1.2.2.2 haad ccleft -= m->m_len; 388 1.2.2.2 haad if (ccleft <= NCHRS) { 389 1.2.2.2 haad char *src; 390 1.2.2.2 haad int tocopy; 391 1.2.2.2 haad 392 1.2.2.2 haad tocopy = (NCHRS - ccleft) - copied; 393 1.2.2.2 haad src = mtod(m, char *) + (m->m_len - tocopy); 394 1.2.2.2 haad 395 1.2.2.2 haad while (tocopy--) { 396 1.2.2.2 haad switch (copied++) { 397 1.2.2.2 haad case 0: 398 1.2.2.2 haad a = *src++; 399 1.2.2.2 haad break; 400 1.2.2.2 haad case 1: 401 1.2.2.2 haad b = *src++; 402 1.2.2.2 haad break; 403 1.2.2.2 haad case 2: 404 1.2.2.2 haad c = *src++; 405 1.2.2.2 haad break; 406 1.2.2.2 haad } 407 1.2.2.2 haad } 408 1.2.2.2 haad } 409 1.2.2.2 haad } 410 1.2.2.2 haad } 411 1.2.2.2 haad if (c == '\n' && (b == '\n' || (b == '\r' && a == '\n'))) { 412 1.2.2.2 haad /* we have all request headers */ 413 1.2.2.2 haad goto gotit; 414 1.2.2.2 haad } 415 1.2.2.2 haad 416 1.2.2.2 haad readmore: 417 1.2.2.2 haad so->so_upcall = soishttpconnected; 418 1.2.2.2 haad so->so_rcv.sb_flags |= SB_UPCALL; 419 1.2.2.2 haad return; 420 1.2.2.2 haad 421 1.2.2.2 haad gotit: 422 1.2.2.2 haad so->so_upcall = NULL; 423 1.2.2.2 haad so->so_rcv.sb_flags &= ~SB_UPCALL; 424 1.2.2.2 haad soisconnected(so); 425 1.2.2.2 haad return; 426 1.2.2.2 haad } 427
Indexes created Thu Oct 02 14:10:14 GMT 2025