From fcf38d20ea98d9e9ec033ad7617d755ecdab0275 Mon Sep 17 00:00:00 2001 From: "/C=DE/ST=Berlin/L=Berlin/O=Netfilter Project/OU=Development/CN=laforge/emailAddress=laforge@netfilter.org" Date: Sun, 9 Oct 2005 15:34:34 +0000 Subject: hopefully the last renaming effort --- _queue/src/libipq_compat.c | 352 --------------------------------------------- 1 file changed, 352 deletions(-) delete mode 100644 _queue/src/libipq_compat.c (limited to '_queue/src/libipq_compat.c') diff --git a/_queue/src/libipq_compat.c b/_queue/src/libipq_compat.c deleted file mode 100644 index d263aed..0000000 --- a/_queue/src/libipq_compat.c +++ /dev/null @@ -1,352 +0,0 @@ -/* - * libipq - backwards compatibility library for libnfnetlink_queue - * - * (C) 2005 by Harald Welte - * - * Based on original libipq.c, - * Author: James Morris - * 07-11-2001 Modified by Fernando Anton to add support for IPv6. - * Copyright (c) 2000-2001 Netfilter Core Team - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - */ - -#include -#include -#include -#include -#include -#include - -#include -#include - -/**************************************************************************** - * - * Private interface - * - ****************************************************************************/ - -enum { - IPQ_ERR_NONE = 0, - IPQ_ERR_IMPL, - IPQ_ERR_HANDLE, - IPQ_ERR_SOCKET, - IPQ_ERR_BIND, - IPQ_ERR_BUFFER, - IPQ_ERR_RECV, - IPQ_ERR_NLEOF, - IPQ_ERR_ADDRLEN, - IPQ_ERR_STRUNC, - IPQ_ERR_RTRUNC, - IPQ_ERR_NLRECV, - IPQ_ERR_SEND, - IPQ_ERR_SUPP, - IPQ_ERR_RECVBUF, - IPQ_ERR_TIMEOUT, - IPQ_ERR_PROTOCOL -}; -#define IPQ_MAXERR IPQ_ERR_PROTOCOL - -struct ipq_errmap_t { - int errcode; - char *message; -} ipq_errmap[] = { - { IPQ_ERR_NONE, "Unknown error" }, - { IPQ_ERR_IMPL, "Implementation error" }, - { IPQ_ERR_HANDLE, "Unable to create netlink handle" }, - { IPQ_ERR_SOCKET, "Unable to create netlink socket" }, - { IPQ_ERR_BIND, "Unable to bind netlink socket" }, - { IPQ_ERR_BUFFER, "Unable to allocate buffer" }, - { IPQ_ERR_RECV, "Failed to receive netlink message" }, - { IPQ_ERR_NLEOF, "Received EOF on netlink socket" }, - { IPQ_ERR_ADDRLEN, "Invalid peer address length" }, - { IPQ_ERR_STRUNC, "Sent message truncated" }, - { IPQ_ERR_RTRUNC, "Received message truncated" }, - { IPQ_ERR_NLRECV, "Received error from netlink" }, - { IPQ_ERR_SEND, "Failed to send netlink message" }, - { IPQ_ERR_SUPP, "Operation not supported" }, - { IPQ_ERR_RECVBUF, "Receive buffer size invalid" }, - { IPQ_ERR_TIMEOUT, "Timeout"}, - { IPQ_ERR_PROTOCOL, "Invalid protocol specified" } -}; - -static int ipq_errno = IPQ_ERR_NONE; - -#if 0 -static ssize_t ipq_netlink_sendto(const struct ipq_handle *h, - const void *msg, size_t len); - -static ssize_t ipq_netlink_recvfrom(const struct ipq_handle *h, - unsigned char *buf, size_t len, - int timeout); - -static ssize_t ipq_netlink_sendmsg(const struct ipq_handle *h, - const struct msghdr *msg, - unsigned int flags); - -static char *ipq_strerror(int errcode); - -static ssize_t ipq_netlink_sendto(const struct ipq_handle *h, - const void *msg, size_t len) -{ - int status = sendto(h->fd, msg, len, 0, - (struct sockaddr *)&h->peer, sizeof(h->peer)); - if (status < 0) - ipq_errno = IPQ_ERR_SEND; - return status; -} - -static ssize_t ipq_netlink_sendmsg(const struct ipq_handle *h, - const struct msghdr *msg, - unsigned int flags) -{ - int status = sendmsg(h->fd, msg, flags); - if (status < 0) - ipq_errno = IPQ_ERR_SEND; - return status; -} - -static ssize_t ipq_netlink_recvfrom(const struct ipq_handle *h, - unsigned char *buf, size_t len, - int timeout) -{ - unsigned int addrlen; - int status; - struct nlmsghdr *nlh; - - if (len < sizeof(struct nlmsgerr)) { - ipq_errno = IPQ_ERR_RECVBUF; - return -1; - } - addrlen = sizeof(h->peer); - - if (timeout != 0) { - int ret; - struct timeval tv; - fd_set read_fds; - - if (timeout < 0) { - /* non-block non-timeout */ - tv.tv_sec = 0; - tv.tv_usec = 0; - } else { - tv.tv_sec = timeout / 1000000; - tv.tv_usec = timeout % 1000000; - } - - FD_ZERO(&read_fds); - FD_SET(h->fd, &read_fds); - ret = select(h->fd+1, &read_fds, NULL, NULL, &tv); - if (ret < 0) { - if (errno == EINTR) { - return 0; - } else { - ipq_errno = IPQ_ERR_RECV; - return -1; - } - } - if (!FD_ISSET(h->fd, &read_fds)) { - ipq_errno = IPQ_ERR_TIMEOUT; - return 0; - } - } - status = recvfrom(h->fd, buf, len, 0, - (struct sockaddr *)&h->peer, &addrlen); - if (status < 0) { - ipq_errno = IPQ_ERR_RECV; - return status; - } - if (addrlen != sizeof(h->peer)) { - ipq_errno = IPQ_ERR_RECV; - return -1; - } - if (h->peer.nl_pid != 0) { - ipq_errno = IPQ_ERR_RECV; - return -1; - } - if (status == 0) { - ipq_errno = IPQ_ERR_NLEOF; - return -1; - } - nlh = (struct nlmsghdr *)buf; - if (nlh->nlmsg_flags & MSG_TRUNC || nlh->nlmsg_len > status) { - ipq_errno = IPQ_ERR_RTRUNC; - return -1; - } - return status; -} -#endif - -static char *ipq_strerror(int errcode) -{ - if (errcode < 0 || errcode > IPQ_MAXERR) - errcode = IPQ_ERR_IMPL; - return ipq_errmap[errcode].message; -} - -/**************************************************************************** - * - * Public interface - * - ****************************************************************************/ - -/* - * Create and initialise an ipq handle. - */ -struct ipq_handle *ipq_create_handle(u_int32_t flags, u_int32_t protocol) -{ - int status; - struct ipq_handle *h; - - h = (struct ipq_handle *)malloc(sizeof(struct ipq_handle)); - if (h == NULL) { - ipq_errno = IPQ_ERR_HANDLE; - return NULL; - } - - memset(h, 0, sizeof(struct ipq_handle)); - - h->nfqnlh = nfqnl_open(); - if (!h->nfqnlh) { - ipq_errno = IPQ_ERR_SOCKET; - goto err_free; - } - - if (protocol == PF_INET) - status = nfqnl_bind_pf(h->nfqnlh, PF_INET); - else if (protocol == PF_INET6) - status = nfqnl_bind_pf(h->nfqnlh, PF_INET6); - else { - ipq_errno = IPQ_ERR_PROTOCOL; - goto err_close; - } - h->family = protocol; - if (status < 0) { - ipq_errno = IPQ_ERR_BIND; - goto err_close; - } - - h->qh = nfqnl_create_queue(h->nfqnlh, 0, NULL, NULL); - if (!h->qh) { - ipq_errno = IPQ_ERR_BIND; - goto err_close; - } - - return h; - -err_close: - nfqnl_close(h->nfqnlh); -err_free: - free(h); - return NULL; -} - -/* - * No error condition is checked here at this stage, but it may happen - * if/when reliable messaging is implemented. - */ -int ipq_destroy_handle(struct ipq_handle *h) -{ - if (h) { - nfqnl_close(h->nfqnlh); - free(h); - } - return 0; -} - -int ipq_set_mode(const struct ipq_handle *h, - u_int8_t mode, size_t range) -{ - return nfqnl_set_mode(h->qh, mode, range); -} - -/* - * timeout is in microseconds (1 second is 1000000 (1 million) microseconds) - * - */ -ssize_t ipq_read(const struct ipq_handle *h, - unsigned char *buf, size_t len, int timeout) -{ - struct nfattr *tb[NFQA_MAX]; - struct nlmsghdr *nlh = (struct nlmsghdr *)buf; - struct nfgenmsg *msg = NULL; - struct nfattr *nfa; - - //return ipq_netlink_recvfrom(h, buf, len, timeout); - - /* This really sucks. We have to copy the whole packet - * in order to build a data structure that is compatible to - * the old ipq interface... */ - - nfa = nfnl_parse_hdr(nfqnl_nfnlh(h->nfqnlh), nlh, &msg); - if (!msg || !nfa) - return 0; - - if (msg->nfgen_family != h->family) - return 0; - - nfnl_parse_attr(tb, NFQA_MAX, nfa, 0xffff); - - - return 0; -} - -int ipq_message_type(const unsigned char *buf) -{ - return ((struct nlmsghdr*)buf)->nlmsg_type; -} - -int ipq_get_msgerr(const unsigned char *buf) -{ - struct nlmsghdr *h = (struct nlmsghdr *)buf; - struct nlmsgerr *err = (struct nlmsgerr*)NLMSG_DATA(h); - return -err->error; -} - -ipq_packet_msg_t *ipq_get_packet(const unsigned char *buf) -{ - return NLMSG_DATA((struct nlmsghdr *)(buf)); -} - -int ipq_set_verdict(const struct ipq_handle *h, - ipq_id_t id, - unsigned int verdict, - size_t data_len, - unsigned char *buf) -{ - return nfqnl_set_verdict(h->qh, id, verdict, data_len, buf); -} - -/* Not implemented yet */ -int ipq_ctl(const struct ipq_handle *h, int request, ...) -{ - return 1; -} - -char *ipq_errstr(void) -{ - return ipq_strerror(ipq_errno); -} - -void ipq_perror(const char *s) -{ - if (s) - fputs(s, stderr); - else - fputs("ERROR", stderr); - if (ipq_errno) - fprintf(stderr, ": %s", ipq_errstr()); - if (errno) - fprintf(stderr, ": %s", strerror(errno)); - fputc('\n', stderr); -} -- cgit v1.2.3