diff options
Diffstat (limited to 'sys/netinet/accf_http.c')
| -rw-r--r-- | sys/netinet/accf_http.c | 183 |
1 files changed, 0 insertions, 183 deletions
diff --git a/sys/netinet/accf_http.c b/sys/netinet/accf_http.c deleted file mode 100644 index 09a4e9fd6172..000000000000 --- a/sys/netinet/accf_http.c +++ /dev/null @@ -1,183 +0,0 @@ -/*- - * Copyright (c) 2000 Alfred Perlstein <alfred@FreeBSD.org> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ - -#define ACCEPT_FILTER_MOD - -#include <sys/param.h> -#include <sys/systm.h> -#include <sys/sysproto.h> -#include <sys/kernel.h> -#include <sys/proc.h> -#include <sys/malloc.h> -#include <sys/unistd.h> -#include <sys/file.h> -#include <sys/fcntl.h> -#include <sys/protosw.h> -#include <sys/socket.h> -#include <sys/socketvar.h> -#include <sys/stat.h> -#include <sys/mbuf.h> -#include <sys/resource.h> -#include <sys/sysent.h> -#include <sys/resourcevar.h> - -/* - * XXX: doesn't work with 0.9 requests, make a seperate filter - * based on this one if you want to decode those. - */ - -/* check for GET */ -static void sohashttpget(struct socket *so, void *arg, int waitflag); -/* check for end of HTTP request */ -static void soishttpconnected(struct socket *so, void *arg, int waitflag); -static char sbindex(struct mbuf **mp, int *begin, int end); - -static struct accept_filter accf_http_filter = { - "httpready", - sohashttpget, - NULL, - NULL -}; - -static moduledata_t accf_http_mod = { - "accf_http", - accept_filt_generic_mod_event, - &accf_http_filter -}; - -DECLARE_MODULE(accf_http, accf_http_mod, SI_SUB_DRIVERS, SI_ORDER_MIDDLE); - - -static char -sbindex(struct mbuf **mp, int *begin, int end) -{ - struct mbuf *m = *mp; - int diff = end - *begin + 1; - - while (m->m_len < diff) { - *begin += m->m_len; - diff -= m->m_len; - if (m->m_next) { - m = m->m_next; - } else if (m->m_nextpkt) { - m = m->m_nextpkt; - } else { - /* only happens if end > data in socket buffer */ - panic("sbindex: not enough data"); - } - } - *mp = m; - return *(mtod(m, char *) + diff - 1); -} - -static void -sohashttpget(struct socket *so, void *arg, int waitflag) -{ - - if ((so->so_state & SS_CANTRCVMORE) == 0) { - struct mbuf *m; - - if (so->so_rcv.sb_cc < 6) - return; - m = so->so_rcv.sb_mb; - if (bcmp(mtod(m, char *), "GET ", 4) == 0) { - soishttpconnected(so, arg, waitflag); - return; - } - } - - so->so_upcall = NULL; - so->so_rcv.sb_flags &= ~SB_UPCALL; - soisconnected(so); - return; -} - -static void -soishttpconnected(struct socket *so, void *arg, int waitflag) -{ - char a, b, c; - struct mbuf *y, *z; - - if ((so->so_state & SS_CANTRCVMORE) == 0) { - /* seek to end and keep track of next to last mbuf */ - y = so->so_rcv.sb_mb; - while (y->m_nextpkt) - y = y->m_nextpkt; - z = y; - while (y->m_next) { - z = y; - y = y->m_next; - } - - if (z->m_len + y->m_len > 2) { - int index = y->m_len - 1; - - c = *(mtod(y, char *) + index--); - switch (index) { - case -1: - y = z; - index = y->m_len - 1; - b = *(mtod(y, char *) + index--); - break; - case 0: - b = *(mtod(y, char *) + index--); - y = z; - index = y->m_len - 1; - break; - default: - b = *(mtod(y, char *) + index--); - break; - } - a = *(mtod(y, char *) + index--); - } else { - int begin = 0; - int end = so->so_rcv.sb_cc - 3; - - y = so->so_rcv.sb_mb; - a = sbindex(&y, &begin, end++); - b = sbindex(&y, &begin, end++); - c = sbindex(&y, &begin, end++); - } - - if (c == '\n' && (b == '\n' || (b == '\r' && a == '\n'))) { - /* we have all request headers */ - goto done; - } else { - /* still need more data */ - so->so_upcall = soishttpconnected; - so->so_rcv.sb_flags |= SB_UPCALL; - return; - } - } - -done: - so->so_upcall = NULL; - so->so_rcv.sb_flags &= ~SB_UPCALL; - soisconnected(so); - return; -} |