diff options
Diffstat (limited to 'openvpn/tap-win32/error.c')
-rwxr-xr-x | openvpn/tap-win32/error.c | 382 |
1 files changed, 0 insertions, 382 deletions
diff --git a/openvpn/tap-win32/error.c b/openvpn/tap-win32/error.c deleted file mode 100755 index 3e52eb0..0000000 --- a/openvpn/tap-win32/error.c +++ /dev/null @@ -1,382 +0,0 @@ -/* - * TAP-Win32 -- A kernel driver to provide virtual tap device functionality - * on Windows. Originally derived from the CIPE-Win32 - * project by Damion K. Wilson, with extensive modifications by - * James Yonan. - * - * All source code which derives from the CIPE-Win32 project is - * Copyright (C) Damion K. Wilson, 2003, and is released under the - * GPL version 2 (see below). - * - * All other source code is Copyright (C) 2002-2005 OpenVPN Solutions LLC, - * and is released under the GPL version 2 (see below). - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 - * as published by the Free Software Foundation. - * - * 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. - * - * You should have received a copy of the GNU General Public License - * along with this program (see the file COPYING included with this - * distribution); if not, write to the Free Software Foundation, Inc., - * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -//----------------- -// DEBUGGING OUTPUT -//----------------- - -const char *g_LastErrorFilename; -int g_LastErrorLineNumber; - -#if DBG - -DebugOutput g_Debug; - -BOOLEAN -NewlineExists (const char *str, int len) -{ - while (len-- > 0) - { - const char c = *str++; - if (c == '\n') - return TRUE; - else if (c == '\0') - break; - } - return FALSE; -} - -VOID -MyDebugInit (unsigned int bufsiz) -{ - NdisZeroMemory (&g_Debug, sizeof (g_Debug)); - g_Debug.text = (char *) MemAlloc (bufsiz, FALSE); - if (g_Debug.text) - g_Debug.capacity = bufsiz; -} - -VOID -MyDebugFree () -{ - if (g_Debug.text) - MemFree (g_Debug.text, g_Debug.capacity); - NdisZeroMemory (&g_Debug, sizeof (g_Debug)); -} - -VOID -MyDebugPrint (const unsigned char* format, ...) -{ - if (g_Debug.text && g_Debug.capacity > 0 && CAN_WE_PRINT) - { - BOOLEAN owned; - ACQUIRE_MUTEX_ADAPTIVE (&g_Debug.lock, owned); - if (owned) - { - const int remaining = (int)g_Debug.capacity - (int)g_Debug.out; - - if (remaining > 0) - { - va_list args; - NTSTATUS status; - char *end; - - va_start (args, format); - status = RtlStringCchVPrintfExA (g_Debug.text + g_Debug.out, - remaining, - &end, - NULL, - STRSAFE_NO_TRUNCATION | STRSAFE_IGNORE_NULLS, - format, - args); - va_end (args); - - if (status == STATUS_SUCCESS) - g_Debug.out = end - g_Debug.text; - else - g_Debug.error = TRUE; - } - else - g_Debug.error = TRUE; - - RELEASE_MUTEX (&g_Debug.lock); - } - else - g_Debug.error = TRUE; - } -} - -BOOLEAN -GetDebugLine (char *buf, const int len) -{ - static const char *truncated = "[OUTPUT TRUNCATED]\n"; - BOOLEAN ret = FALSE; - - NdisZeroMemory (buf, len); - - if (g_Debug.text && g_Debug.capacity > 0) - { - BOOLEAN owned; - ACQUIRE_MUTEX_ADAPTIVE (&g_Debug.lock, owned); - if (owned) - { - int i = 0; - - if (g_Debug.error || NewlineExists (g_Debug.text + g_Debug.in, (int)g_Debug.out - (int)g_Debug.in)) - { - while (i < (len - 1) && g_Debug.in < g_Debug.out) - { - const char c = g_Debug.text[g_Debug.in++]; - if (c == '\n') - break; - buf[i++] = c; - } - if (i < len) - buf[i] = '\0'; - } - - if (!i) - { - if (g_Debug.in == g_Debug.out) - { - g_Debug.in = g_Debug.out = 0; - if (g_Debug.error) - { - const unsigned int tlen = strlen (truncated); - if (tlen < g_Debug.capacity) - { - NdisMoveMemory (g_Debug.text, truncated, tlen+1); - g_Debug.out = tlen; - } - g_Debug.error = FALSE; - } - } - } - else - ret = TRUE; - - RELEASE_MUTEX (&g_Debug.lock); - } - } - return ret; -} - -VOID -MyAssert (const unsigned char *file, int line) -{ - DEBUGP (("MYASSERT failed %s/%d\n", file, line)); - KeBugCheckEx (0x0F00BABA, - (ULONG_PTR) line, - (ULONG_PTR) 0, - (ULONG_PTR) 0, - (ULONG_PTR) 0); -} - -VOID -PrMac (const MACADDR mac) -{ - DEBUGP (("%x:%x:%x:%x:%x:%x", - mac[0], mac[1], mac[2], - mac[3], mac[4], mac[5])); -} - -VOID -PrIP (IPADDR ip_addr) -{ - const unsigned char *ip = (const unsigned char *) &ip_addr; - - DEBUGP (("%d.%d.%d.%d", - ip[0], ip[1], ip[2], ip[3])); -} - -const char * -PrIPProto (int proto) -{ - switch (proto) - { - case IPPROTO_UDP: - return "UDP"; - case IPPROTO_TCP: - return "TCP"; - case IPPROTO_ICMP: - return "ICMP"; - case IPPROTO_IGMP: - return "IGMP"; - default: - return "???"; - } -} - -VOID -DumpARP (const char *prefix, const ARP_PACKET *arp) -{ - DEBUGP (("%s ARP src=", prefix)); - PrMac (arp->m_MAC_Source); - DEBUGP ((" dest=")); - PrMac (arp->m_MAC_Destination); - DEBUGP ((" OP=0x%04x", - (int)ntohs(arp->m_ARP_Operation))); - DEBUGP ((" M=0x%04x(%d)", - (int)ntohs(arp->m_MAC_AddressType), - (int)arp->m_MAC_AddressSize)); - DEBUGP ((" P=0x%04x(%d)", - (int)ntohs(arp->m_PROTO_AddressType), - (int)arp->m_PROTO_AddressSize)); - - DEBUGP ((" MacSrc=")); - PrMac (arp->m_ARP_MAC_Source); - DEBUGP ((" MacDest=")); - PrMac (arp->m_ARP_MAC_Destination); - - DEBUGP ((" IPSrc=")); - PrIP (arp->m_ARP_IP_Source); - DEBUGP ((" IPDest=")); - PrIP (arp->m_ARP_IP_Destination); - - DEBUGP (("\n")); -} - -struct ethpayload { - ETH_HEADER eth; - UCHAR payload[DEFAULT_PACKET_LOOKAHEAD]; -}; - -VOID -DumpPacket2 (const char *prefix, - const ETH_HEADER *eth, - const unsigned char *data, - unsigned int len) -{ - struct ethpayload *ep = (struct ethpayload *) MemAlloc (sizeof (struct ethpayload), TRUE); - if (ep) - { - if (len > DEFAULT_PACKET_LOOKAHEAD) - len = DEFAULT_PACKET_LOOKAHEAD; - ep->eth = *eth; - NdisMoveMemory (ep->payload, data, len); - DumpPacket (prefix, (unsigned char *) ep, sizeof (ETH_HEADER) + len); - MemFree (ep, sizeof (struct ethpayload)); - } -} - -VOID -DumpPacket (const char *prefix, - const unsigned char *data, - unsigned int len) -{ - const ETH_HEADER *eth = (const ETH_HEADER *) data; - const IPHDR *ip = (const IPHDR *) (data + sizeof (ETH_HEADER)); - - if (len < sizeof (ETH_HEADER)) - { - DEBUGP (("%s TRUNCATED PACKET LEN=%d\n", prefix, len)); - return; - } - - // ARP Packet? - if (len >= sizeof (ARP_PACKET) && eth->proto == htons (ETH_P_ARP)) - { - DumpARP (prefix, (const ARP_PACKET *) data); - return; - } - - // IPv4 packet? - if (len >= (sizeof (IPHDR) + sizeof (ETH_HEADER)) - && eth->proto == htons (ETH_P_IP) - && IPH_GET_VER (ip->version_len) == 4) - { - const int hlen = IPH_GET_LEN (ip->version_len); - const int blen = len - sizeof (ETH_HEADER); - BOOLEAN did = FALSE; - - DEBUGP (("%s IPv4 %s[%d]", prefix, PrIPProto (ip->protocol), len)); - - if (!(ntohs (ip->tot_len) == blen && hlen <= blen)) - { - DEBUGP ((" XXX")); - return; - } - - // TCP packet? - if (ip->protocol == IPPROTO_TCP - && blen - hlen >= (sizeof (TCPHDR))) - { - const TCPHDR *tcp = (TCPHDR *) (data + sizeof (ETH_HEADER) + hlen); - DEBUGP ((" ")); - PrIP (ip->saddr); - DEBUGP ((":%d", ntohs (tcp->source))); - DEBUGP ((" -> ")); - PrIP (ip->daddr); - DEBUGP ((":%d", ntohs (tcp->dest))); - did = TRUE; - } - - // UDP packet? - else if ((ntohs (ip->frag_off) & IP_OFFMASK) == 0 - && ip->protocol == IPPROTO_UDP - && blen - hlen >= (sizeof (UDPHDR))) - { - const UDPHDR *udp = (UDPHDR *) (data + sizeof (ETH_HEADER) + hlen); - - // DHCP packet? - if ((udp->dest == htons (BOOTPC_PORT) || udp->dest == htons (BOOTPS_PORT)) - && blen - hlen >= (sizeof (UDPHDR) + sizeof (DHCP))) - { - const DHCP *dhcp = (DHCP *) (data - + hlen - + sizeof (ETH_HEADER) - + sizeof (UDPHDR)); - - int optlen = len - - sizeof (ETH_HEADER) - - hlen - - sizeof (UDPHDR) - - sizeof (DHCP); - - if (optlen < 0) - optlen = 0; - - DumpDHCP (eth, ip, udp, dhcp, optlen); - did = TRUE; - } - - if (!did) - { - DEBUGP ((" ")); - PrIP (ip->saddr); - DEBUGP ((":%d", ntohs (udp->source))); - DEBUGP ((" -> ")); - PrIP (ip->daddr); - DEBUGP ((":%d", ntohs (udp->dest))); - did = TRUE; - } - } - - if (!did) - { - DEBUGP ((" ipproto=%d ", ip->protocol)); - PrIP (ip->saddr); - DEBUGP ((" -> ")); - PrIP (ip->daddr); - } - - DEBUGP (("\n")); - return; - } - - { - DEBUGP (("%s ??? src=", prefix)); - PrMac (eth->src); - DEBUGP ((" dest=")); - PrMac (eth->dest); - DEBUGP ((" proto=0x%04x len=%d\n", - (int) ntohs(eth->proto), - len)); - } -} - -#endif |