diff options
author | Gilbert Ramirez <gram@alumni.rice.edu> | 2004-07-18 18:06:47 +0000 |
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committer | Gilbert Ramirez <gram@alumni.rice.edu> | 2004-07-18 18:06:47 +0000 |
commit | 669db206cb1f270046ad400fff7655e20c63e723 (patch) | |
tree | 4eff24a2e16c8963e497e1fc575f35e6af59bd26 /packet-sap.c | |
parent | ae46c27a38700af669ef907491081f09df6f6b2c (diff) |
Move dissectors to epan/dissectors directory.
Also move ncp222.py, x11-fields, process-x11-fields.pl,
make-reg-dotc, and make-reg-dotc.py.
Adjust #include lines in files that include packet-*.h
files.
svn path=/trunk/; revision=11410
Diffstat (limited to 'packet-sap.c')
-rw-r--r-- | packet-sap.c | 362 |
1 files changed, 0 insertions, 362 deletions
diff --git a/packet-sap.c b/packet-sap.c deleted file mode 100644 index c54ad1ecd8..0000000000 --- a/packet-sap.c +++ /dev/null @@ -1,362 +0,0 @@ -/* packet-sap.c - * Routines for sap packet dissection - * RFC 2974 - * - * Heikki Vatiainen <hessu@cs.tut.fi> - * - * $Id$ - * - * Ethereal - Network traffic analyzer - * By Gerald Combs <gerald@ethereal.com> - * Copyright 1998 Gerald Combs - * - * Copied from packet-tftp.c - * - * 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. - */ - -#ifdef HAVE_CONFIG_H -# include "config.h" -#endif - -#include <string.h> -#include <glib.h> -#include <epan/packet.h> -#include "packet-ipv6.h" - -#define UDP_PORT_SAP 9875 - -#define MCAST_SAP_VERSION_MASK 0xE0 /* 3 bits for SAP version*/ -#define MCAST_SAP_VERSION_SHIFT 5 /* Right shift 5 bits to get the version */ -#define MCAST_SAP_VER0 0 /* Version 0 */ -#define MCAST_SAP_VER1PLUS 1 /* Version 1 or later */ -static const value_string mcast_sap_ver[] = { - { MCAST_SAP_VER0, "SAPv0"}, - { MCAST_SAP_VER1PLUS, "SAPv1 or later"}, - { 0, NULL} }; - -static const true_false_string mcast_sap_address_type = { - "IPv6", - "IPv4" -}; - -static const true_false_string mcast_sap_message_type = { - "Deletion", - "Announcement" -}; - -static const true_false_string mcast_sap_crypt_type = { - "Payload encrypted", - "Payload not encrypted " -}; - -static const true_false_string mcast_sap_comp_type = { - "Payload compressed", - "Payload not compressed" -}; - -static const value_string mcast_sap_auth_ver[] = { - { 1, "SAP authentication header v1"}, - { 0, NULL} }; - -static const true_false_string mcast_sap_auth_pad = { - "Authentication subheader padded to 32 bits", - "No padding required for the authentication subheader" -}; - -#define MCAST_SAP_AUTH_TYPE_MASK 0x0F /* 4 bits for the type of the authentication header */ -#define MCAST_SAP_AUTH_TYPE_PGP 0 -#define MCAST_SAP_AUTH_TYPE_CMS 1 -static const value_string mcast_sap_auth_type[] = { - { MCAST_SAP_AUTH_TYPE_PGP, "PGP"}, - { MCAST_SAP_AUTH_TYPE_CMS, "CMS"}, - { 0, NULL} }; - -#define MCAST_SAP_BIT_A 0x10 /* Address type: 0 IPv4, 1 IPv6 */ -#define MCAST_SAP_BIT_R 0x08 /* Reserved: Must be 0 */ -#define MCAST_SAP_BIT_T 0x04 /* Message Type: 0 announcement, 1 deletion */ -#define MCAST_SAP_BIT_E 0x02 /* Encryption Bit: 1 payload encrypted */ -#define MCAST_SAP_BIT_C 0x01 /* Compressed Bit: 1 payload zlib compressed */ - -#define MCAST_SAP_AUTH_BIT_P 0x10 /* Padding required for the authentication header */ - - -static int proto_sap = -1; -static int hf_sap_flags = -1; -static int hf_sap_flags_v = -1; -static int hf_sap_flags_a = -1; -static int hf_sap_flags_r = -1; -static int hf_sap_flags_t = -1; -static int hf_sap_flags_e = -1; -static int hf_sap_flags_c = -1; -static int hf_auth_data = -1; -static int hf_auth_flags = -1; -static int hf_auth_flags_v = -1; -static int hf_auth_flags_p = -1; -static int hf_auth_flags_t = -1; - -static gint ett_sap = -1; -static gint ett_sap_flags = -1; -static gint ett_sap_auth = -1; -static gint ett_sap_authf = -1; - -static dissector_handle_t sdp_handle; - -static void -dissect_sap(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) -{ - int offset = 0; - int sap_version, is_ipv6, is_del, is_enc, is_comp, addr_len; - guint8 vers_flags; - guint8 auth_len; - guint16 tmp1; - const guint8 *addr; - guint8 auth_flags; - tvbuff_t *next_tvb; - - proto_item *si, *sif; - proto_tree *sap_tree, *sap_flags_tree; - - if (check_col(pinfo->cinfo, COL_PROTOCOL)) - col_set_str(pinfo->cinfo, COL_PROTOCOL, "SAP"); - if (check_col(pinfo->cinfo, COL_INFO)) - col_clear(pinfo->cinfo, COL_INFO); - - vers_flags = tvb_get_guint8(tvb, offset); - is_ipv6 = vers_flags&MCAST_SAP_BIT_A; - is_del = vers_flags&MCAST_SAP_BIT_T; - is_enc = vers_flags&MCAST_SAP_BIT_E; - is_comp = vers_flags&MCAST_SAP_BIT_C; - - sap_version = (vers_flags&MCAST_SAP_VERSION_MASK)>>MCAST_SAP_VERSION_SHIFT; - addr_len = (is_ipv6) ? sizeof(struct e_in6_addr) : 4; - - if (check_col(pinfo->cinfo, COL_INFO)) { - col_add_fstr(pinfo->cinfo, COL_INFO, "%s (v%u)", - (is_del) ? "Deletion" : "Announcement", sap_version); - } - - if (tree) { - si = proto_tree_add_item(tree, proto_sap, tvb, offset, -1, FALSE); - sap_tree = proto_item_add_subtree(si, ett_sap); - - sif = proto_tree_add_uint(sap_tree, hf_sap_flags, tvb, offset, 1, vers_flags); - sap_flags_tree = proto_item_add_subtree(sif, ett_sap_flags); - proto_tree_add_uint(sap_flags_tree, hf_sap_flags_v, tvb, offset, 1, vers_flags); - proto_tree_add_boolean(sap_flags_tree, hf_sap_flags_a, tvb, offset, 1, vers_flags); - proto_tree_add_boolean(sap_flags_tree, hf_sap_flags_r, tvb, offset, 1, vers_flags); - proto_tree_add_boolean(sap_flags_tree, hf_sap_flags_t, tvb, offset, 1, vers_flags); - proto_tree_add_boolean(sap_flags_tree, hf_sap_flags_e, tvb, offset, 1, vers_flags); - proto_tree_add_boolean(sap_flags_tree, hf_sap_flags_c, tvb, offset, 1, vers_flags); - offset++; - - auth_len = tvb_get_guint8(tvb, offset); - proto_tree_add_text(sap_tree, tvb, offset, 1, "Authentication Length: %u", auth_len); - offset++; - - tmp1 = tvb_get_ntohs(tvb, offset); - proto_tree_add_text(sap_tree, tvb, offset, 2, "Message Identifier Hash: 0x%x", tmp1); - offset +=2; - - addr = tvb_get_ptr(tvb, offset, addr_len); - proto_tree_add_text(sap_tree, tvb, offset, addr_len, "Originating Source: %s", - (is_ipv6) ? ip6_to_str((const struct e_in6_addr*)addr) : ip_to_str(addr)); - offset += addr_len; - - /* Authentication data lives in its own subtree */ - if (auth_len > 0) { - guint32 auth_data_len; - proto_item *sdi, *sai; - proto_tree *sa_tree, *saf_tree; - int has_pad; - guint8 pad_len = 0; - - auth_data_len = auth_len * sizeof(guint32); - - sdi = proto_tree_add_item(sap_tree, hf_auth_data, tvb, offset, auth_data_len, FALSE); - sa_tree = proto_item_add_subtree(sdi, ett_sap_auth); - - auth_flags = tvb_get_guint8(tvb, offset); - sai = proto_tree_add_uint(sa_tree, hf_auth_flags, tvb, offset, 1, auth_flags); - saf_tree = proto_item_add_subtree(sai, ett_sap_authf); - proto_tree_add_uint(saf_tree, hf_auth_flags_v, tvb, offset, 1, auth_flags); - proto_tree_add_boolean(saf_tree, hf_auth_flags_p, tvb, offset, 1, auth_flags); - proto_tree_add_uint(saf_tree, hf_auth_flags_t, tvb, offset, 1, auth_flags); - - has_pad = auth_flags&MCAST_SAP_AUTH_BIT_P; - if (has_pad) - pad_len = tvb_get_guint8(tvb, offset+auth_data_len-1); - - proto_tree_add_text(sa_tree, tvb, offset+1, auth_data_len-pad_len-1, - "Authentication subheader: (%u byte%s)", - auth_data_len-1, plurality(auth_data_len-1, "", "s")); - if (has_pad) { - proto_tree_add_text(sa_tree, tvb, offset+auth_data_len-pad_len, pad_len, - "Authentication data padding: (%u byte%s)", - pad_len, plurality(pad_len, "", "s")); - proto_tree_add_text(sa_tree, tvb, offset+auth_data_len-1, 1, - "Authentication data pad count: %u byte%s", - pad_len, plurality(pad_len, "", "s")); - } - - offset += auth_data_len; - } - if (is_enc || is_comp) { - char *mangle; - if (is_enc && is_comp) mangle = "compressed and encrypted"; - else if (is_enc) mangle = "encrypted"; - else mangle = "compressed"; - proto_tree_add_text(sap_tree, tvb, offset, -1, - "The rest of the packet is %s", mangle); - return; - } - - /* Do we have the optional payload type aka. MIME content specifier */ - if (tvb_strneql(tvb, offset, "v=", strlen("v="))) { - gint remaining_len; - guint32 pt_len; - int pt_string_len; - - remaining_len = tvb_length_remaining(tvb, offset); - if (remaining_len == 0) { - /* - * "tvb_strneql()" failed because there was no - * data left in the packet. - * - * Set the remaining length to 1, so that - * we throw the appropriate exception in - * "tvb_get_ptr()", rather than displaying - * the payload type. - */ - remaining_len = 1; - } - pt_string_len = tvb_strnlen(tvb, offset, remaining_len); - if (pt_string_len == -1) { - /* - * We didn't find a terminating '\0'; run to the - * end of the buffer. - */ - pt_string_len = remaining_len; - pt_len = pt_string_len; - } else { - /* - * Include the '\0' in the total item length. - */ - pt_len = pt_string_len + 1; - } - proto_tree_add_text(sap_tree, tvb, offset, pt_len, - "Payload type: %.*s", pt_string_len, - tvb_get_ptr(tvb, offset, pt_string_len)); - offset += pt_len; - } - } - - /* Done with SAP */ - next_tvb = tvb_new_subset(tvb, offset, -1, -1); - call_dissector(sdp_handle, next_tvb, pinfo, tree); - - return; -} - -void proto_register_sap(void) -{ - - static hf_register_info hf[] = { - { &hf_sap_flags, - { "Flags", "sap.flags", - FT_UINT8, BASE_HEX, NULL, 0x0, - "Bits in the beginning of the SAP header", HFILL }}, - - { &hf_sap_flags_v, - { "Version Number", "sap.flags.v", - FT_UINT8, BASE_DEC, VALS(mcast_sap_ver), MCAST_SAP_VERSION_MASK, - "3 bit version field in the SAP header", HFILL }}, - - { &hf_sap_flags_a, - { "Address Type", "sap.flags.a", - FT_BOOLEAN, 8, TFS(&mcast_sap_address_type), MCAST_SAP_BIT_A, - "Originating source address type", HFILL }}, - - { &hf_sap_flags_r, - { "Reserved", "sap.flags.r", - FT_BOOLEAN, 8, TFS(&flags_set_truth), MCAST_SAP_BIT_R, - "Reserved", HFILL }}, - - { &hf_sap_flags_t, - { "Message Type", "sap.flags.t", - FT_BOOLEAN, 8, TFS(&mcast_sap_message_type), MCAST_SAP_BIT_T, - "Announcement type", HFILL }}, - - { &hf_sap_flags_e, - { "Encryption Bit", "sap.flags.e", - FT_BOOLEAN, 8, TFS(&mcast_sap_crypt_type), MCAST_SAP_BIT_E, - "Encryption", HFILL }}, - - { &hf_sap_flags_c, - { "Compression Bit", "sap.flags.c", - FT_BOOLEAN, 8, TFS(&mcast_sap_comp_type), MCAST_SAP_BIT_C, - "Compression", HFILL }}, - - { &hf_auth_data, - { "Authentication data", "sap.auth", - FT_NONE, BASE_NONE, NULL, 0x0, - "Auth data", HFILL }}, - - { &hf_auth_flags, - { "Authentication data flags", "sap.auth.flags", - FT_UINT8, BASE_HEX, NULL, 0x0, - "Auth flags", HFILL }}, - - { &hf_auth_flags_v, - { "Version Number", "sap.auth.flags.v", - FT_UINT8, BASE_DEC, VALS(&mcast_sap_auth_ver), MCAST_SAP_VERSION_MASK, - "Version", HFILL }}, - - { &hf_auth_flags_p, - { "Padding Bit", "sap.auth.flags.p", - FT_BOOLEAN, 8, TFS(&mcast_sap_auth_pad), MCAST_SAP_AUTH_BIT_P, - "Compression", HFILL }}, - - { &hf_auth_flags_t, - { "Authentication Type", "sap.auth.flags.t", - FT_UINT8, BASE_DEC, VALS(&mcast_sap_auth_type), MCAST_SAP_AUTH_TYPE_MASK, - "Auth type", HFILL }} - }; - static gint *ett[] = { - &ett_sap, - &ett_sap_flags, - &ett_sap_auth, - &ett_sap_authf, - }; - - proto_sap = proto_register_protocol("Session Announcement Protocol", "SAP", - "sap"); - proto_register_field_array(proto_sap, hf, array_length(hf)); - proto_register_subtree_array(ett, array_length(ett)); -} - -void -proto_reg_handoff_sap(void) -{ - dissector_handle_t sap_handle; - - sap_handle = create_dissector_handle(dissect_sap, proto_sap); - dissector_add("udp.port", UDP_PORT_SAP, sap_handle); - - /* - * Get a handle for the SDP dissector. - */ - sdp_handle = find_dissector("sdp"); -} |