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-rw-r--r--programs/spi/spi.c1689
1 files changed, 1689 insertions, 0 deletions
diff --git a/programs/spi/spi.c b/programs/spi/spi.c
new file mode 100644
index 000000000..369d556c7
--- /dev/null
+++ b/programs/spi/spi.c
@@ -0,0 +1,1689 @@
+/*
+ * All-in-one program to set Security Association parameters
+ * Copyright (C) 1996 John Ioannidis.
+ * Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Richard Guy Briggs.
+ *
+ * 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. See <http://www.fsf.org/copyleft/gpl.txt>.
+ *
+ * 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.
+ */
+
+char spi_c_version[] = "RCSID $Id: spi.c,v 1.7 2004/10/14 20:03:26 as Exp $";
+
+#include <asm/types.h>
+#include <sys/types.h>
+#include <sys/ioctl.h>
+/* #include <linux/netdevice.h> */
+#include <net/if.h>
+/* #include <linux/types.h> */ /* new */
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <string.h>
+#include <errno.h>
+
+/* #include <sys/socket.h> */
+
+#include <netinet/in.h>
+#include <arpa/inet.h>
+/* #include <linux/ip.h> */
+#include <netdb.h>
+
+#include <unistd.h>
+#include <getopt.h>
+#include <ctype.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <freeswan.h>
+#if 0
+#include <linux/autoconf.h> /* CONFIG_IPSEC_PFKEYv2 */
+#endif
+ #include <signal.h>
+ #include <sys/socket.h>
+ #include <pfkeyv2.h>
+ #include <pfkey.h>
+
+#include "freeswan/radij.h"
+#include "freeswan/ipsec_encap.h"
+#include "freeswan/ipsec_xform.h"
+#include "freeswan/ipsec_ipe4.h"
+#include "freeswan/ipsec_ah.h"
+#include "freeswan/ipsec_esp.h"
+#include "freeswan/ipsec_sa.h" /* IPSEC_SAREF_NULL */
+
+/*
+ * Manual conn support for ipsec_alg (modular algos).
+ * Rather ugly to include from pluto dir but avoids
+ * code duplication.
+ */
+#ifndef NO_KERNEL_ALG
+#include "../pluto/alg_info.h"
+#include "../pluto/constants.h"
+struct connection;
+#include "../pluto/kernel_alg.h"
+#endif /* NO_KERNEL_ALG */
+
+char *program_name;
+int debug = 0;
+int saref = 0;
+char *command;
+extern char *optarg;
+extern int optind, opterr, optopt;
+char scratch[2];
+char *iv = NULL, *enckey = NULL, *authkey = NULL;
+size_t ivlen = 0, enckeylen = 0, authkeylen = 0;
+ip_address edst, dst, src;
+int address_family = 0;
+unsigned char proto = 0;
+int alg = 0;
+
+#ifndef NO_KERNEL_ALG
+/*
+ * Manual connection support for modular algos (ipsec_alg) --Juanjo.
+ */
+#define XF_OTHER_ALG (XF_CLR-1) /* define magic XF_ symbol for alg_info's */
+#include <assert.h>
+const char *alg_string = NULL; /* algorithm string */
+struct alg_info_esp *alg_info = NULL; /* algorithm info got from string */
+struct esp_info *esp_info = NULL; /* esp info from 1st (only) element */
+const char *alg_err; /* auxiliar for parsing errors */
+int proc_read_ok = 0; /* /proc/net/pf_key_support read ok */
+#endif /* NO_KERNEL_ALG */
+
+int replay_window = 0;
+char sa[SATOT_BUF];
+
+extern unsigned int pfkey_lib_debug; /* used by libfreeswan/pfkey_v2_build */
+int pfkey_sock;
+fd_set pfkey_socks;
+uint32_t pfkey_seq = 0;
+enum life_severity {
+ life_soft = 0,
+ life_hard = 1,
+ life_maxsever = 2
+};
+enum life_type {
+ life_alloc = 0,
+ life_bytes = 1,
+ life_addtime = 2,
+ life_usetime = 3,
+ life_packets = 4,
+ life_maxtype = 5
+};
+
+#define streql(_a,_b) (!strcmp((_a),(_b)))
+
+static const char *usage_string = "\
+Usage:\n\
+ in the following, <SA> is: --af <inet | inet6> --edst <dstaddr> --spi <spi> --proto <proto>\n\
+ OR: --said <proto><.|:><spi>@<dstaddr>\n\
+ <life> is: --life <soft|hard>-<allocations|bytes|addtime|usetime|packets>=<value>[,...]\n\
+spi --clear\n\
+spi --help\n\
+spi --version\n\
+spi\n\
+spi --del <SA>\n\
+spi --ip4 <SA> --src <encap-src> --dst <encap-dst>\n\
+spi --ip6 <SA> --src <encap-src> --dst <encap-dst>\n\
+spi --ah <algo> <SA> [<life> ][ --replay_window <replay_window> ] --authkey <key>\n\
+ where <algo> is one of: hmac-md5-96 | hmac-sha1-96\n\
+spi --esp <algo> <SA> [<life> ][ --replay_window <replay-window> ] --enckey <ekey> --authkey <akey>\n\
+ where <algo> is one of: 3des-md5-96 | 3des-sha1-96\n\
+spi --esp <algo> <SA> [<life> ][ --replay_window <replay-window> ] --enckey <ekey>\n\
+ where <algo> is: 3des\n\
+spi --comp <algo> <SA>\n\
+ where <algo> is: deflate\n\
+[ --debug ] is optional to any spi command.\n\
+[ --label <label> ] is optional to any spi command.\n\
+[ --listenreply ] is optional, and causes the command to stick\n\
+ around and listen to what the PF_KEY socket says.\n\
+";
+
+
+static void
+usage(char *s, FILE *f)
+{
+ /* s argument is actually ignored, at present */
+ fprintf(f, "%s:%s", s, usage_string);
+ exit(-1);
+}
+
+int
+parse_life_options(uint32_t life[life_maxsever][life_maxtype],
+ char *life_opt[life_maxsever][life_maxtype],
+ char *optarg)
+{
+ char *optargp = optarg;
+ char *endptr;
+
+ do {
+ int life_severity, life_type;
+ char *optargt = optargp;
+
+ if(strncmp(optargp, "soft", sizeof("soft")-1) == 0) {
+ life_severity = life_soft;
+ optargp += sizeof("soft")-1;
+ } else if(strncmp(optargp, "hard", sizeof("hard")-1) == 0) {
+ life_severity = life_hard;
+ optargp += sizeof("hard")-1;
+ } else {
+ fprintf(stderr,
+ "%s: missing lifetime severity in %s, optargt=0p%p, optargp=0p%p, sizeof(\"soft\")=%d\n",
+ program_name,
+ optargt,
+ optargt,
+ optargp,
+ (int)sizeof("soft"));
+ usage(program_name, stderr);
+ return(1);
+ }
+ if(debug) {
+ fprintf(stdout,
+ "%s: debug: life_severity=%d, optargt=0p%p=\"%s\", optargp=0p%p=\"%s\", sizeof(\"soft\")=%d\n",
+ program_name,
+ life_severity,
+ optargt,
+ optargt,
+ optargp,
+ optargp,
+ (int)sizeof("soft"));
+ }
+ if(*(optargp++) != '-') {
+ fprintf(stderr,
+ "%s: expected '-' after severity of lifetime parameter to --life option.\n",
+ program_name);
+ usage(program_name, stderr);
+ return(1);
+ }
+ if(debug) {
+ fprintf(stdout,
+ "%s: debug: optargt=0p%p=\"%s\", optargp=0p%p=\"%s\", strlen(optargt)=%d, strlen(optargp)=%d, strncmp(optargp, \"addtime\", sizeof(\"addtime\")-1)=%d\n",
+ program_name,
+ optargt,
+ optargt,
+ optargp,
+ optargp,
+ (int)strlen(optargt),
+ (int)strlen(optargp),
+ strncmp(optargp, "addtime", sizeof("addtime")-1));
+ }
+ if(strncmp(optargp, "allocations", sizeof("allocations")-1) == 0) {
+ life_type = life_alloc;
+ optargp += sizeof("allocations")-1;
+ } else if(strncmp(optargp, "bytes", sizeof("bytes")-1) == 0) {
+ life_type = life_bytes;
+ optargp += sizeof("bytes")-1;
+ } else if(strncmp(optargp, "addtime", sizeof("addtime")-1) == 0) {
+ life_type = life_addtime;
+ optargp += sizeof("addtime")-1;
+ } else if(strncmp(optargp, "usetime", sizeof("usetime")-1) == 0) {
+ life_type = life_usetime;
+ optargp += sizeof("usetime")-1;
+ } else if(strncmp(optargp, "packets", sizeof("packets")-1) == 0) {
+ life_type = life_packets;
+ optargp += sizeof("packets")-1;
+ } else {
+ fprintf(stderr,
+ "%s: missing lifetime type after '-' in %s\n",
+ program_name,
+ optargt);
+ usage(program_name, stderr);
+ return(1);
+ }
+ if(debug) {
+ fprintf(stdout,
+ "%s: debug: life_type=%d\n",
+ program_name,
+ life_type);
+ }
+ if(life_opt[life_severity][life_type] != NULL) {
+ fprintf(stderr,
+ "%s: Error, lifetime parameter redefined:%s, already defined as:0p%p\n",
+ program_name,
+ optargt,
+ life_opt[life_severity][life_type]);
+ return(1);
+ }
+ if(*(optargp++) != '=') {
+ fprintf(stderr,
+ "%s: expected '=' after type of lifetime parameter to --life option.\n",
+ program_name);
+ usage(program_name, stderr);
+ return(1);
+ }
+ if(debug) {
+ fprintf(stdout,
+ "%s: debug: optargt=0p%p, optargt+strlen(optargt)=0p%p, optargp=0p%p, strlen(optargp)=%d\n",
+ program_name,
+ optargt,
+ optargt+strlen(optargt),
+ optargp,
+ (int)strlen(optargp));
+ }
+ if(strlen(optargp) == 0) {
+ fprintf(stderr,
+ "%s: expected value after '=' in --life option. optargt=0p%p, optargt+strlen(optargt)=0p%p, optargp=0p%p\n",
+ program_name,
+ optargt,
+ optargt+strlen(optargt),
+ optargp);
+ usage(program_name, stderr);
+ return(1);
+ }
+ life[life_severity][life_type] = strtoul(optargp, &endptr, 0);
+
+ if(!((endptr == optargp + strlen(optargp)) || (endptr == optargp + strcspn(optargp, ", ")))) {
+ fprintf(stderr,
+ "%s: Invalid character='%c' at offset %d in lifetime option parameter: '%s', parameter string is %d characters long, %d valid value characters found.\n",
+ program_name,
+ *endptr,
+ (int)(endptr - optarg),
+ optarg,
+ (int)strlen(optarg),
+ (int)(strcspn(optargp, ", ") - 1));
+ return(1);
+ }
+ life_opt[life_severity][life_type] = optargt;
+ if(debug) {
+ fprintf(stdout, "%s lifetime %s set to %d.\n",
+ program_name, optargt, life[life_severity][life_type]);
+ }
+ optargp=endptr+1;
+ } while(*endptr==',' || isspace(*endptr));
+
+ return(0);
+}
+
+int
+pfkey_register(uint8_t satype) {
+ /* for registering SA types that can be negotiated */
+ int error;
+ ssize_t wlen;
+ struct sadb_ext *extensions[SADB_EXT_MAX + 1];
+ struct sadb_msg *pfkey_msg;
+
+ pfkey_extensions_init(extensions);
+ error = pfkey_msg_hdr_build(&extensions[0],
+ SADB_REGISTER,
+ satype,
+ 0,
+ ++pfkey_seq,
+ getpid());
+ if(error != 0) {
+ fprintf(stderr, "%s: Trouble building message header, error=%d.\n",
+ program_name, error);
+ pfkey_extensions_free(extensions);
+ return(1);
+ }
+
+ error = pfkey_msg_build(&pfkey_msg, extensions, EXT_BITS_IN);
+ if(error != 0) {
+ fprintf(stderr, "%s: Trouble building pfkey message, error=%d.\n",
+ program_name, error);
+ pfkey_extensions_free(extensions);
+ pfkey_msg_free(&pfkey_msg);
+ return(1);
+ }
+ wlen = write(pfkey_sock, pfkey_msg,
+ pfkey_msg->sadb_msg_len * IPSEC_PFKEYv2_ALIGN);
+ if(wlen != (ssize_t)(pfkey_msg->sadb_msg_len * IPSEC_PFKEYv2_ALIGN)) {
+ /* cleanup code here */
+ if(wlen < 0)
+ fprintf(stderr, "%s: Trouble writing to channel PF_KEY: %s\n",
+ program_name,
+ strerror(errno));
+ else
+ fprintf(stderr, "%s: write to channel PF_KEY truncated.\n",
+ program_name);
+ pfkey_extensions_free(extensions);
+ pfkey_msg_free(&pfkey_msg);
+ return(1);
+ }
+ pfkey_extensions_free(extensions);
+ pfkey_msg_free(&pfkey_msg);
+
+ return(0);
+}
+
+static struct option const longopts[] =
+{
+ {"ah", 1, 0, 'H'},
+ {"esp", 1, 0, 'P'},
+ {"comp", 1, 0, 'Z'},
+ {"ip4", 0, 0, '4'},
+ {"ip6", 0, 0, '6'},
+ {"del", 0, 0, 'd'},
+
+ {"authkey", 1, 0, 'A'},
+ {"enckey", 1, 0, 'E'},
+ {"edst", 1, 0, 'e'},
+ {"spi", 1, 0, 's'},
+ {"proto", 1, 0, 'p'},
+ {"af", 1, 0, 'a'},
+ {"replay_window", 1, 0, 'w'},
+ {"iv", 1, 0, 'i'},
+ {"dst", 1, 0, 'D'},
+ {"src", 1, 0, 'S'},
+ {"said", 1, 0, 'I'},
+
+ {"help", 0, 0, 'h'},
+ {"version", 0, 0, 'v'},
+ {"clear", 0, 0, 'c'},
+ {"label", 1, 0, 'l'},
+ {"debug", 0, 0, 'g'},
+ {"optionsfrom", 1, 0, '+'},
+ {"life", 1, 0, 'f'},
+ {"saref", 0, 0, 'r'},
+ {"listenreply", 0, 0, 'R'},
+ {0, 0, 0, 0}
+};
+
+int
+main(int argc, char *argv[])
+{
+ char *endptr;
+ __u32 spi = 0;
+ int c, previous = -1;
+/* int ret; */
+ ip_said said;
+ size_t sa_len;
+ const char* error_s;
+ char ipaddr_txt[ADDRTOT_BUF];
+ char ipsaid_txt[SATOT_BUF];
+
+ int error = 0;
+ ssize_t io_error;
+ int argcount = argc;
+ pid_t mypid;
+ int listenreply = 0;
+
+ unsigned char authalg, encryptalg;
+ struct sadb_ext *extensions[SADB_EXT_MAX + 1];
+ struct sadb_msg *pfkey_msg;
+ char *iv_opt, *akey_opt, *ekey_opt, *alg_opt, *edst_opt, *spi_opt, *proto_opt, *af_opt, *said_opt, *dst_opt, *src_opt;
+#if 0
+ ip_address pfkey_address_p_ska;
+ ip_address pfkey_ident_s_ska;
+ ip_address pfkey_ident_d_ska;
+#endif
+ uint32_t life[life_maxsever][life_maxtype];
+ char *life_opt[life_maxsever][life_maxtype];
+
+ program_name = argv[0];
+ mypid = getpid();
+
+ memset(&said, 0, sizeof(said));
+ iv_opt = akey_opt = ekey_opt = alg_opt = edst_opt = spi_opt = proto_opt = af_opt = said_opt = dst_opt = src_opt = NULL;
+ {
+ int i,j;
+ for(i = 0; i < life_maxsever; i++) {
+ for(j = 0; j < life_maxtype; j++) {
+ life_opt[i][j] = NULL;
+ life[i][j] = 0;
+ }
+ }
+ }
+
+ while((c = getopt_long(argc, argv, ""/*"H:P:Z:46dcA:E:e:s:a:w:i:D:S:hvgl:+:f:"*/, longopts, 0)) != EOF) {
+ switch(c) {
+ case 'g':
+ debug = 1;
+ pfkey_lib_debug = PF_KEY_DEBUG_PARSE_MAX;
+ argcount--;
+ break;
+
+ case 'R':
+ listenreply = 1;
+ argcount--;
+ break;
+
+ case 'r':
+ saref = 1;
+ argcount--;
+ break;
+
+ case 'l':
+ program_name = malloc(strlen(argv[0])
+ + 10 /* update this when changing the sprintf() */
+ + strlen(optarg));
+ sprintf(program_name, "%s --label %s",
+ argv[0],
+ optarg);
+ argcount -= 2;
+ break;
+ case 'H':
+ if(alg) {
+ fprintf(stderr, "%s: Only one of '--ah', '--esp', '--comp', '--ip4', '--ip6', '--del' or '--clear' options permitted.\n",
+ program_name);
+ exit(1);
+ }
+ if (!strcmp(optarg, "hmac-md5-96")) {
+ alg = XF_AHHMACMD5;
+ } else if(!strcmp(optarg, "hmac-sha1-96")) {
+ alg = XF_AHHMACSHA1;
+ } else {
+ fprintf(stderr, "%s: Unknown authentication algorithm '%s' follows '--ah' option.\n",
+ program_name, optarg);
+ exit(1);
+ }
+ if(debug) {
+ fprintf(stdout, "%s: Algorithm %d selected.\n",
+ program_name,
+ alg);
+ }
+ alg_opt = optarg;
+ break;
+ case 'P':
+ if(alg) {
+ fprintf(stderr, "%s: Only one of '--ah', '--esp', '--comp', '--ip4', '--ip6', '--del' or '--clear' options permitted.\n",
+ program_name);
+ exit(1);
+ }
+ if (!strcmp(optarg, "3des-md5-96")) {
+ alg = XF_ESP3DESMD596;
+ } else if(!strcmp(optarg, "3des-sha1-96")) {
+ alg = XF_ESP3DESSHA196;
+ } else if(!strcmp(optarg, "3des")) {
+ alg = XF_ESP3DES;
+#ifndef NO_KERNEL_ALG
+ } else if((alg_info=alg_info_esp_create_from_str(optarg, &alg_err))) {
+ int esp_ealg_id, esp_aalg_id;
+ alg = XF_OTHER_ALG;
+ if (alg_info->alg_info_cnt>1) {
+ fprintf(stderr, "%s: Invalid encryption algorithm '%s' "
+ "follows '--esp' option: lead too many(%d) "
+ "transforms\n",
+ program_name, optarg, alg_info->alg_info_cnt);
+ exit(1);
+ }
+ alg_string=optarg;
+ esp_info=&alg_info->esp[0];
+ if (debug) {
+ fprintf(stdout, "%s: alg_info: cnt=%d ealg[0]=%d aalg[0]=%d\n",
+ program_name,
+ alg_info->alg_info_cnt,
+ esp_info->encryptalg,
+ esp_info->authalg);
+ }
+ esp_ealg_id=esp_info->esp_ealg_id;
+ esp_aalg_id=esp_info->esp_aalg_id;
+ if (kernel_alg_proc_read()==0) {
+ proc_read_ok++;
+ if (!kernel_alg_esp_enc_ok(esp_ealg_id, 0, 0))
+ {
+ fprintf(stderr, "%s: ESP encryptalg=%d (\"%s\") "
+ "not present\n",
+ program_name,
+ esp_ealg_id,
+ enum_name(&esp_transformid_names, esp_ealg_id));
+ exit(1);
+ }
+ if (!kernel_alg_esp_auth_ok(esp_aalg_id, 0))
+ {
+ fprintf(stderr, "%s: ESP authalg=%d (\"%s\")"
+ "not present\n",
+ program_name,
+ esp_aalg_id,
+ enum_name(&auth_alg_names, esp_aalg_id));
+ exit(1);
+ }
+ }
+#endif /* NO_KERNEL_ALG */
+ } else {
+ fprintf(stderr, "%s: Invalid encryption algorithm '%s' follows '--esp' option.\n",
+ program_name, optarg);
+ exit(1);
+ }
+ if(debug) {
+ fprintf(stdout, "%s: Algorithm %d selected.\n",
+ program_name,
+ alg);
+ }
+ alg_opt = optarg;
+ break;
+ case 'Z':
+ if(alg) {
+ fprintf(stderr, "%s: Only one of '--ah', '--esp', '--comp', '--ip4', '--ip6', '--del' or '--clear' options permitted.\n",
+ program_name);
+ exit(1);
+ }
+ if (!strcmp(optarg, "deflate")) {
+ alg = XF_COMPDEFLATE;
+ } else {
+ fprintf(stderr, "%s: Unknown compression algorithm '%s' follows '--comp' option.\n",
+ program_name, optarg);
+ exit(1);
+ }
+ if(debug) {
+ fprintf(stdout, "%s: Algorithm %d selected.\n",
+ program_name,
+ alg);
+ }
+ alg_opt = optarg;
+ break;
+ case '4':
+ if(alg) {
+ fprintf(stderr, "%s: Only one of '--ah', '--esp', '--comp', '--ip4', '--ip6', '--del' or '--clear' options permitted.\n",
+ program_name);
+ exit(1);
+ }
+ alg = XF_IP4;
+ address_family = AF_INET;
+ if(debug) {
+ fprintf(stdout, "%s: Algorithm %d selected.\n",
+ program_name,
+ alg);
+ }
+ alg_opt = optarg;
+ break;
+ case '6':
+ if(alg) {
+ fprintf(stderr, "%s: Only one of '--ah', '--esp', '--comp', '--ip4', '--ip6', '--del' or '--clear' options permitted.\n",
+ program_name);
+ exit(1);
+ }
+ alg = XF_IP6;
+ address_family = AF_INET6;
+ if(debug) {
+ fprintf(stdout, "%s: Algorithm %d selected.\n",
+ program_name,
+ alg);
+ }
+ alg_opt = optarg;
+ break;
+ case 'd':
+ if(alg) {
+ fprintf(stderr, "%s: Only one of '--ah', '--esp', '--comp', '--ip4', '--ip6', '--del' or '--clear' options permitted.\n",
+ program_name);
+ exit(1);
+ }
+ alg = XF_DEL;
+ if(debug) {
+ fprintf(stdout, "%s: Algorithm %d selected.\n",
+ program_name,
+ alg);
+ }
+ alg_opt = optarg;
+ break;
+ case 'c':
+ if(alg) {
+ fprintf(stderr, "%s: Only one of '--ah', '--esp', '--comp', '--ip4', '--ip6', '--del' or '--clear' options permitted.\n",
+ program_name);
+ exit(1);
+ }
+ alg = XF_CLR;
+ if(debug) {
+ fprintf(stdout, "%s: Algorithm %d selected.\n",
+ program_name,
+ alg);
+ }
+ alg_opt = optarg;
+ break;
+ case 'e':
+ if(said_opt) {
+ fprintf(stderr, "%s: Error, EDST parameter redefined:%s, already defined in SA:%s\n",
+ program_name, optarg, said_opt);
+ exit (1);
+ }
+ if(edst_opt) {
+ fprintf(stderr, "%s: Error, EDST parameter redefined:%s, already defined as:%s\n",
+ program_name, optarg, edst_opt);
+ exit (1);
+ }
+ error_s = ttoaddr(optarg, 0, address_family, &edst);
+ if(error_s != NULL) {
+ if(error_s) {
+ fprintf(stderr, "%s: Error, %s converting --edst argument:%s\n",
+ program_name, error_s, optarg);
+ exit (1);
+ }
+ }
+ edst_opt = optarg;
+ if(debug) {
+ addrtot(&edst, 0, ipaddr_txt, sizeof(ipaddr_txt));
+ fprintf(stdout, "%s: edst=%s.\n",
+ program_name,
+ ipaddr_txt);
+ }
+ break;
+ case 's':
+ if(said_opt) {
+ fprintf(stderr, "%s: Error, SPI parameter redefined:%s, already defined in SA:%s\n",
+ program_name, optarg, said_opt);
+ exit (1);
+ }
+ if(spi_opt) {
+ fprintf(stderr, "%s: Error, SPI parameter redefined:%s, already defined as:%s\n",
+ program_name, optarg, spi_opt);
+ exit (1);
+ }
+ spi = strtoul(optarg, &endptr, 0);
+ if(!(endptr == optarg + strlen(optarg))) {
+ fprintf(stderr, "%s: Invalid character in SPI parameter: %s\n",
+ program_name, optarg);
+ exit (1);
+ }
+ if(spi < 0x100) {
+ fprintf(stderr, "%s: Illegal reserved spi: %s => 0x%x Must be larger than 0x100.\n",
+ program_name, optarg, spi);
+ exit(1);
+ }
+ spi_opt = optarg;
+ break;
+ case 'p':
+ if(said_opt) {
+ fprintf(stderr, "%s: Error, PROTO parameter redefined:%s, already defined in SA:%s\n",
+ program_name, optarg, said_opt);
+ exit (1);
+ }
+ if(proto_opt) {
+ fprintf(stderr, "%s: Error, PROTO parameter redefined:%s, already defined as:%s\n",
+ program_name, optarg, proto_opt);
+ exit (1);
+ }
+ if(!strcmp(optarg, "ah"))
+ proto = SA_AH;
+ if(!strcmp(optarg, "esp"))
+ proto = SA_ESP;
+ if(!strcmp(optarg, "tun"))
+ proto = SA_IPIP;
+ if(!strcmp(optarg, "comp"))
+ proto = SA_COMP;
+ if(proto == 0) {
+ fprintf(stderr, "%s: Invalid PROTO parameter: %s\n",
+ program_name, optarg);
+ exit (1);
+ }
+ proto_opt = optarg;
+ break;
+ case 'a':
+ if(said_opt) {
+ fprintf(stderr, "%s: Error, ADDRESS FAMILY parameter redefined:%s, already defined in SA:%s\n",
+ program_name, optarg, said_opt);
+ exit (1);
+ }
+ if(af_opt) {
+ fprintf(stderr, "%s: Error, ADDRESS FAMILY parameter redefined:%s, already defined as:%s\n",
+ program_name, optarg, af_opt);
+ exit (1);
+ }
+ if(strcmp(optarg, "inet") == 0) {
+ address_family = AF_INET;
+ /* currently we ensure that all addresses belong to the same address family */
+ anyaddr(address_family, &dst);
+ anyaddr(address_family, &edst);
+ anyaddr(address_family, &src);
+ }
+ if(strcmp(optarg, "inet6") == 0) {
+ address_family = AF_INET6;
+ /* currently we ensure that all addresses belong to the same address family */
+ anyaddr(address_family, &dst);
+ anyaddr(address_family, &edst);
+ anyaddr(address_family, &src);
+ }
+ if((strcmp(optarg, "inet") != 0) && (strcmp(optarg, "inet6") != 0)) {
+ fprintf(stderr, "%s: Invalid ADDRESS FAMILY parameter: %s.\n",
+ program_name, optarg);
+ exit (1);
+ }
+ af_opt = optarg;
+ break;
+ case 'I':
+ if(said_opt) {
+ fprintf(stderr, "%s: Error, SAID parameter redefined:%s, already defined in SA:%s\n",
+ program_name, optarg, said_opt);
+ exit (1);
+ }
+ if(proto_opt) {
+ fprintf(stderr, "%s: Error, PROTO parameter redefined in SA:%s, already defined as:%s\n",
+ program_name, optarg, proto_opt);
+ exit (1);
+ }
+ if(edst_opt) {
+ fprintf(stderr, "%s: Error, EDST parameter redefined in SA:%s, already defined as:%s\n",
+ program_name, optarg, edst_opt);
+ exit (1);
+ }
+ if(spi_opt) {
+ fprintf(stderr, "%s: Error, SPI parameter redefined in SA:%s, already defined as:%s\n",
+ program_name, optarg, spi_opt);
+ exit (1);
+ }
+ error_s = ttosa(optarg, 0, &said);
+ if(error_s != NULL) {
+ fprintf(stderr, "%s: Error, %s converting --sa argument:%s\n",
+ program_name, error_s, optarg);
+ exit (1);
+ }
+ if(debug) {
+ satot(&said, 0, ipsaid_txt, sizeof(ipsaid_txt));
+ fprintf(stdout, "%s: said=%s.\n",
+ program_name,
+ ipsaid_txt);
+ }
+ /* init the src and dst with the same address family */
+ if(address_family == 0) {
+ address_family = addrtypeof(&said.dst);
+ } else if(address_family != addrtypeof(&said.dst)) {
+ fprintf(stderr, "%s: Error, specified address family (%d) is different that of SAID: %s\n",
+ program_name, address_family, optarg);
+ exit (1);
+ }
+ anyaddr(address_family, &dst);
+ anyaddr(address_family, &edst);
+ anyaddr(address_family, &src);
+ said_opt = optarg;
+ break;
+ case 'A':
+ if(optarg[0] == '0') {
+ switch(optarg[1]) {
+ case 't':
+ case 'x':
+ case 's':
+ break;
+ default:
+ fprintf(stderr, "%s: Authentication key must have a '0x', '0t' or '0s' prefix to select the format: %s\n",
+ program_name, optarg);
+ exit(1);
+ }
+ }
+ authkeylen = atodata(optarg, 0, NULL, 0);
+ if(!authkeylen) {
+ fprintf(stderr, "%s: unknown format or syntax error in authentication key: %s\n",
+ program_name, optarg);
+ exit (1);
+ }
+ authkey = malloc(authkeylen);
+ if(authkey == NULL) {
+ fprintf(stderr, "%s: Memory allocation error.\n", program_name);
+ exit(1);
+ }
+ memset(authkey, 0, authkeylen);
+ authkeylen = atodata(optarg, 0, authkey, authkeylen);
+ akey_opt = optarg;
+ break;
+ case 'E':
+ if(optarg[0] == '0') {
+ switch(optarg[1]) {
+ case 't':
+ case 'x':
+ case 's':
+ break;
+ default:
+ fprintf(stderr, "%s: Encryption key must have a '0x', '0t' or '0s' prefix to select the format: %s\n",
+ program_name, optarg);
+ exit(1);
+ }
+ }
+ enckeylen = atodata(optarg, 0, NULL, 0);
+ if(!enckeylen) {
+ fprintf(stderr, "%s: unknown format or syntax error in encryption key: %s\n",
+ program_name, optarg);
+ exit (1);
+ }
+ enckey = malloc(enckeylen);
+ if(enckey == NULL) {
+ fprintf(stderr, "%s: Memory allocation error.\n", program_name);
+ exit(1);
+ }
+ memset(enckey, 0, enckeylen);
+ enckeylen = atodata(optarg, 0, enckey, enckeylen);
+ ekey_opt = optarg;
+ break;
+ case 'w':
+ replay_window = strtoul(optarg, &endptr, 0);
+ if(!(endptr == optarg + strlen(optarg))) {
+ fprintf(stderr, "%s: Invalid character in replay_window parameter: %s\n",
+ program_name, optarg);
+ exit (1);
+ }
+ if((replay_window < 0x1) || (replay_window > 64)) {
+ fprintf(stderr, "%s: Failed -- Illegal window size: arg=%s, replay_window=%d, must be 1 <= size <= 64.\n",
+ program_name, optarg, replay_window);
+ exit(1);
+ }
+ break;
+ case 'i':
+ if(optarg[0] == '0') {
+ switch(optarg[1]) {
+ case 't':
+ case 'x':
+ case 's':
+ break;
+ default:
+ fprintf(stderr, "%s: IV must have a '0x', '0t' or '0s' prefix to select the format, found '%c'.\n",
+ program_name, optarg[1]);
+ exit(1);
+ }
+ }
+ ivlen = atodata(optarg, 0, NULL, 0);
+ if(!ivlen) {
+ fprintf(stderr, "%s: unknown format or syntax error in IV: %s\n",
+ program_name, optarg);
+ exit (1);
+ }
+ iv = malloc(ivlen);
+ if(iv == NULL) {
+ fprintf(stderr, "%s: Memory allocation error.\n", program_name);
+ exit(1);
+ }
+ memset(iv, 0, ivlen);
+ ivlen = atodata(optarg, 0, iv, ivlen);
+ iv_opt = optarg;
+ break;
+ case 'D':
+ if(dst_opt) {
+ fprintf(stderr, "%s: Error, DST parameter redefined:%s, already defined as:%s\n",
+ program_name, optarg, dst_opt);
+ exit (1);
+ }
+ error_s = ttoaddr(optarg, 0, address_family, &dst);
+ if(error_s != NULL) {
+ fprintf(stderr, "%s: Error, %s converting --dst argument:%s\n",
+ program_name, error_s, optarg);
+ exit (1);
+ }
+ dst_opt = optarg;
+ if(debug) {
+ addrtot(&dst, 0, ipaddr_txt, sizeof(ipaddr_txt));
+ fprintf(stdout, "%s: dst=%s.\n",
+ program_name,
+ ipaddr_txt);
+ }
+ break;
+ case 'S':
+ if(src_opt) {
+ fprintf(stderr, "%s: Error, SRC parameter redefined:%s, already defined as:%s\n",
+ program_name, optarg, src_opt);
+ exit (1);
+ }
+ error_s = ttoaddr(optarg, 0, address_family, &src);
+ if(error_s != NULL) {
+ fprintf(stderr, "%s: Error, %s converting --src argument:%s\n",
+ program_name, error_s, optarg);
+ exit (1);
+ }
+ src_opt = optarg;
+ if(debug) {
+ addrtot(&src, 0, ipaddr_txt, sizeof(ipaddr_txt));
+ fprintf(stdout, "%s: src=%s.\n",
+ program_name,
+ ipaddr_txt);
+ }
+ break;
+ case 'h':
+ usage(program_name, stdout);
+ exit(0);
+ case '?':
+ usage(program_name, stderr);
+ exit(1);
+ case 'v':
+ fprintf(stdout, "%s, %s\n", program_name, spi_c_version);
+ exit(1);
+ case '+': /* optionsfrom */
+ optionsfrom(optarg, &argc, &argv, optind, stderr);
+ /* no return on error */
+ break;
+ case 'f':
+ if(parse_life_options(life,
+ life_opt,
+ optarg) != 0) {
+ exit(1);
+ };
+ break;
+ default:
+ fprintf(stderr, "%s: unrecognized option '%c', update option processing.\n",
+ program_name, c);
+ exit(1);
+ }
+ previous = c;
+ }
+ if(debug) {
+ fprintf(stdout, "%s: All options processed.\n",
+ program_name);
+ }
+
+ if(argcount == 1) {
+ system("cat /proc/net/ipsec_spi");
+ exit(0);
+ }
+
+ switch(alg) {
+#ifndef NO_KERNEL_ALG
+ case XF_OTHER_ALG:
+ /* validate keysizes */
+ if (proc_read_ok) {
+ const struct sadb_alg *alg_p;
+ size_t keylen, minbits, maxbits;
+
+ alg_p=kernel_alg_sadb_alg_get(SADB_SATYPE_ESP,SADB_EXT_SUPPORTED_ENCRYPT,
+ esp_info->encryptalg);
+ assert(alg_p);
+ keylen=enckeylen * 8;
+
+ if (alg_p->sadb_alg_id==ESP_3DES || alg_p->sadb_alg_id==ESP_DES) {
+ maxbits=minbits=alg_p->sadb_alg_minbits * 8 /7;
+ } else {
+ minbits=alg_p->sadb_alg_minbits;
+ maxbits=alg_p->sadb_alg_maxbits;
+ }
+ /*
+ * if explicit keylen told in encrypt algo, eg "aes128"
+ * check actual keylen "equality"
+ */
+ if (esp_info->esp_ealg_keylen &&
+ esp_info->esp_ealg_keylen!=keylen) {
+ fprintf(stderr, "%s: invalid encryption keylen=%d, "
+ "required %d by encrypt algo string=\"%s\"\n",
+ program_name,
+ (int)keylen,
+ (int)esp_info->esp_ealg_keylen,
+ alg_string);
+ exit(1);
+
+ }
+ /* thanks DES for this sh*t */
+
+ if (minbits > keylen || maxbits < keylen) {
+ fprintf(stderr, "%s: invalid encryption keylen=%d, "
+ "must be between %d and %d bits\n",
+ program_name,
+ (int)keylen, (int)minbits, (int)maxbits);
+ exit(1);
+ }
+ alg_p=kernel_alg_sadb_alg_get(SADB_SATYPE_ESP,SADB_EXT_SUPPORTED_AUTH,
+ esp_info->authalg);
+ assert(alg_p);
+ keylen=authkeylen * 8;
+ minbits=alg_p->sadb_alg_minbits;
+ maxbits=alg_p->sadb_alg_maxbits;
+ if (minbits > keylen || maxbits < keylen) {
+ fprintf(stderr, "%s: invalid auth keylen=%d, "
+ "must be between %d and %d bits\n",
+ program_name,
+ (int)keylen, (int)minbits, (int)maxbits);
+ exit(1);
+ }
+
+ }
+#endif /* NO_KERNEL_ALG */
+ case XF_IP4:
+ case XF_IP6:
+ case XF_DEL:
+ case XF_AHHMACMD5:
+ case XF_AHHMACSHA1:
+ case XF_ESP3DESMD596:
+ case XF_ESP3DESSHA196:
+ case XF_ESP3DES:
+ case XF_COMPDEFLATE:
+ if(!said_opt) {
+ if(isanyaddr(&edst)) {
+ fprintf(stderr, "%s: SA destination not specified.\n",
+ program_name);
+ exit(1);
+ }
+ if(!spi) {
+ fprintf(stderr, "%s: SA SPI not specified.\n",
+ program_name);
+ exit(1);
+ }
+ if(!proto) {
+ fprintf(stderr, "%s: SA PROTO not specified.\n",
+ program_name);
+ exit(1);
+ }
+ initsaid(&edst, htonl(spi), proto, &said);
+ } else {
+ proto = said.proto;
+ spi = ntohl(said.spi);
+ edst = said.dst;
+ }
+ if((address_family != 0) && (address_family != addrtypeof(&said.dst))) {
+ fprintf(stderr, "%s: Defined address family and address family of SA missmatch.\n",
+ program_name);
+ exit(1);
+ }
+ sa_len = satot(&said, 0, sa, sizeof(sa));
+
+ if(debug) {
+ fprintf(stdout, "%s: SA valid.\n",
+ program_name);
+ }
+ break;
+ case XF_CLR:
+ break;
+ default:
+ fprintf(stderr, "%s: No action chosen. See '%s --help' for usage.\n",
+ program_name, program_name);
+ exit(1);
+ }
+
+ switch(alg) {
+ case XF_CLR:
+ case XF_DEL:
+ case XF_IP4:
+ case XF_IP6:
+ case XF_AHHMACMD5:
+ case XF_AHHMACSHA1:
+ case XF_ESP3DESMD596:
+ case XF_ESP3DESSHA196:
+ case XF_ESP3DES:
+ case XF_COMPDEFLATE:
+#ifndef NO_KERNEL_ALG
+ case XF_OTHER_ALG:
+#endif /* NO_KERNEL_ALG */
+ break;
+ default:
+ fprintf(stderr, "%s: No action chosen. See '%s --help' for usage.\n",
+ program_name, program_name);
+ exit(1);
+ }
+ if(debug) {
+ fprintf(stdout, "%s: Algorithm ok.\n",
+ program_name);
+ }
+
+ if((pfkey_sock = socket(PF_KEY, SOCK_RAW, PF_KEY_V2) ) < 0) {
+ fprintf(stderr, "%s: Trouble opening PF_KEY family socket with error: ",
+ program_name);
+ switch(errno) {
+ case ENOENT:
+ fprintf(stderr, "device does not exist. See FreeS/WAN installation procedure.\n");
+ break;
+ case EACCES:
+ fprintf(stderr, "access denied. ");
+ if(getuid() == 0) {
+ fprintf(stderr, "Check permissions. Should be 600.\n");
+ } else {
+ fprintf(stderr, "You must be root to open this file.\n");
+ }
+ break;
+ case EUNATCH:
+ fprintf(stderr, "Netlink not enabled OR KLIPS not loaded.\n");
+ break;
+ case ENODEV:
+ fprintf(stderr, "KLIPS not loaded or enabled.\n");
+ break;
+ case EBUSY:
+ fprintf(stderr, "KLIPS is busy. Most likely a serious internal error occured in a previous command. Please report as much detail as possible to development team.\n");
+ break;
+ case EINVAL:
+ fprintf(stderr, "Invalid argument, KLIPS not loaded or check kernel log messages for specifics.\n");
+ break;
+ case ENOBUFS:
+ fprintf(stderr, "No kernel memory to allocate SA.\n");
+ break;
+ case ESOCKTNOSUPPORT:
+ fprintf(stderr, "Algorithm support not available in the kernel. Please compile in support.\n");
+ break;
+ case EEXIST:
+ fprintf(stderr, "SA already in use. Delete old one first.\n");
+ break;
+ case ENXIO:
+ fprintf(stderr, "SA does not exist. Cannot delete.\n");
+ break;
+ case EAFNOSUPPORT:
+ fprintf(stderr, "KLIPS not loaded or enabled.\n");
+ break;
+ default:
+ fprintf(stderr, "Unknown file open error %d. Please report as much detail as possible to development team.\n", errno);
+ }
+ exit(1);
+ }
+
+#ifdef MANUAL_IS_NOT_ABLE_TO_NEGOTIATE
+ /* for registering SA types that can be negotiated */
+ if(pfkey_register(SADB_SATYPE_AH) != 0) {
+ exit(1);
+ }
+ if(pfkey_register(SADB_SATYPE_ESP) != 0) {
+ exit(1);
+ }
+ if(pfkey_register(SADB_X_SATYPE_IPIP) != 0) {
+ exit(1);
+ }
+ if(pfkey_register(SADB_X_SATYPE_COMP) != 0) {
+ exit(1);
+ }
+#endif /* MANUAL_IS_NOT_ABLE_TO_NEGOTIATE */
+
+ /* Build an SADB_ADD message to send down. */
+ /* It needs <base, SA, address(SD), key(AE)> minimum. */
+ /* Lifetime(HS) could be added before addresses. */
+ pfkey_extensions_init(extensions);
+ if(debug) {
+ fprintf(stdout, "%s: extensions=0p%p &extensions=0p%p extensions[0]=0p%p &extensions[0]=0p%p cleared.\n",
+ program_name,
+ extensions,
+ &extensions,
+ extensions[0],
+ &extensions[0]);
+ }
+ if((error = pfkey_msg_hdr_build(&extensions[0],
+ (alg == XF_DEL ? SADB_DELETE : alg == XF_CLR ? SADB_FLUSH : SADB_ADD),
+ proto2satype(proto),
+ 0,
+ ++pfkey_seq,
+ mypid))) {
+ fprintf(stderr, "%s: Trouble building message header, error=%d.\n",
+ program_name, error);
+ pfkey_extensions_free(extensions);
+ exit(1);
+ }
+ if(debug) {
+ fprintf(stdout, "%s: extensions=0p%p &extensions=0p%p extensions[0]=0p%p &extensions[0]=0p%p set w/msghdr.\n",
+ program_name,
+ extensions,
+ &extensions,
+ extensions[0],
+ &extensions[0]);
+ }
+ if(debug) {
+ fprintf(stdout, "%s: base message assembled.\n", program_name);
+ }
+
+ switch(alg) {
+ case XF_AHHMACMD5:
+ case XF_ESP3DESMD596:
+ authalg = SADB_AALG_MD5_HMAC;
+ break;
+ case XF_AHHMACSHA1:
+ case XF_ESP3DESSHA196:
+ authalg = SADB_AALG_SHA1_HMAC;
+ break;
+#ifndef NO_KERNEL_ALG
+ case XF_OTHER_ALG:
+ authalg= esp_info->authalg;
+ if(debug) {
+ fprintf(stdout, "%s: debug: authalg=%d\n",
+ program_name, authalg);
+ }
+ break;
+#endif /* NO_KERNEL_ALG */
+ case XF_ESP3DESMD5:
+ default:
+ authalg = SADB_AALG_NONE;
+ }
+ switch(alg) {
+ case XF_ESP3DES:
+ case XF_ESP3DESMD596:
+ case XF_ESP3DESSHA196:
+ encryptalg = SADB_EALG_3DES_CBC;
+ break;
+ case XF_COMPDEFLATE:
+ encryptalg = SADB_X_CALG_DEFLATE;
+ break;
+#ifndef NO_KERNEL_ALG
+ case XF_OTHER_ALG:
+ encryptalg= esp_info->encryptalg;
+ if(debug) {
+ fprintf(stdout, "%s: debug: encryptalg=%d\n",
+ program_name, encryptalg);
+ }
+ break;
+#endif /* NO_KERNEL_ALG */
+ default:
+ encryptalg = SADB_EALG_NONE;
+ }
+ if(!(alg == XF_CLR /* IE: pfkey_msg->sadb_msg_type == SADB_FLUSH */)) {
+ if((error = pfkey_sa_build(&extensions[SADB_EXT_SA],
+ SADB_EXT_SA,
+ htonl(spi), /* in network order */
+ replay_window,
+ SADB_SASTATE_MATURE,
+ authalg,
+ encryptalg,
+ 0))) {
+ fprintf(stderr, "%s: Trouble building sa extension, error=%d.\n",
+ program_name, error);
+ pfkey_extensions_free(extensions);
+ exit(1);
+ }
+ if(debug) {
+ fprintf(stdout, "%s: extensions[0]=0p%p previously set with msg_hdr.\n",
+ program_name,
+ extensions[0]);
+ }
+ if(debug) {
+ fprintf(stdout, "%s: assembled SA extension, pfkey msg authalg=%d encalg=%d.\n",
+ program_name,
+ authalg,
+ encryptalg);
+ }
+
+ if(debug) {
+ int i,j;
+ for(i = 0; i < life_maxsever; i++) {
+ for(j = 0; j < life_maxtype; j++) {
+ fprintf(stdout, "%s: i=%d, j=%d, life_opt[%d][%d]=0p%p, life[%d][%d]=%d\n",
+ program_name,
+ i, j, i, j, life_opt[i][j], i, j, life[i][j]);
+ }
+ }
+ }
+ if(life_opt[life_soft][life_alloc] != NULL ||
+ life_opt[life_soft][life_bytes] != NULL ||
+ life_opt[life_soft][life_addtime] != NULL ||
+ life_opt[life_soft][life_usetime] != NULL ||
+ life_opt[life_soft][life_packets] != NULL) {
+ if((error = pfkey_lifetime_build(&extensions[SADB_EXT_LIFETIME_SOFT],
+ SADB_EXT_LIFETIME_SOFT,
+ life[life_soft][life_alloc],/*-1,*/ /*allocations*/
+ life[life_soft][life_bytes],/*-1,*/ /*bytes*/
+ life[life_soft][life_addtime],/*-1,*/ /*addtime*/
+ life[life_soft][life_usetime],/*-1,*/ /*usetime*/
+ life[life_soft][life_packets]/*-1*/))) { /*packets*/
+ fprintf(stderr, "%s: Trouble building lifetime_s extension, error=%d.\n",
+ program_name, error);
+ pfkey_extensions_free(extensions);
+ exit(1);
+ }
+ if(debug) {
+ fprintf(stdout, "%s: lifetime_s extension assembled.\n",
+ program_name);
+ }
+ }
+
+ if(life_opt[life_hard][life_alloc] != NULL ||
+ life_opt[life_hard][life_bytes] != NULL ||
+ life_opt[life_hard][life_addtime] != NULL ||
+ life_opt[life_hard][life_usetime] != NULL ||
+ life_opt[life_hard][life_packets] != NULL) {
+ if((error = pfkey_lifetime_build(&extensions[SADB_EXT_LIFETIME_HARD],
+ SADB_EXT_LIFETIME_HARD,
+ life[life_hard][life_alloc],/*-1,*/ /*allocations*/
+ life[life_hard][life_bytes],/*-1,*/ /*bytes*/
+ life[life_hard][life_addtime],/*-1,*/ /*addtime*/
+ life[life_hard][life_usetime],/*-1,*/ /*usetime*/
+ life[life_hard][life_packets]/*-1*/))) { /*packets*/
+ fprintf(stderr, "%s: Trouble building lifetime_h extension, error=%d.\n",
+ program_name, error);
+ pfkey_extensions_free(extensions);
+ exit(1);
+ }
+ if(debug) {
+ fprintf(stdout, "%s: lifetime_h extension assembled.\n",
+ program_name);
+ }
+ }
+
+ if(debug) {
+ addrtot(&src, 0, ipaddr_txt, sizeof(ipaddr_txt));
+ fprintf(stdout, "%s: assembling address_s extension (%s).\n",
+ program_name, ipaddr_txt);
+ }
+
+ if((error = pfkey_address_build(&extensions[SADB_EXT_ADDRESS_SRC],
+ SADB_EXT_ADDRESS_SRC,
+ 0,
+ 0,
+ sockaddrof(&src)))) {
+ addrtot(&src, 0, ipaddr_txt, sizeof(ipaddr_txt));
+ fprintf(stderr, "%s: Trouble building address_s extension (%s), error=%d.\n",
+ program_name, ipaddr_txt, error);
+ pfkey_extensions_free(extensions);
+ exit(1);
+ }
+ if(debug) {
+ ip_address temp_addr;
+
+ switch(address_family) {
+ case AF_INET:
+ initaddr((const unsigned char *)&(((struct sockaddr_in*)( ((struct sadb_address*)(extensions[SADB_EXT_ADDRESS_SRC])) + 1))->sin_addr),
+ sockaddrlenof(&src), address_family, &temp_addr);
+ break;
+ case AF_INET6:
+ initaddr((const unsigned char *)&(((struct sockaddr_in6*)( ((struct sadb_address*)(extensions[SADB_EXT_ADDRESS_SRC])) + 1))->sin6_addr),
+ sockaddrlenof(&src), address_family, &temp_addr);
+ break;
+ default:
+ fprintf(stdout, "%s: unknown address family (%d).\n",
+ program_name, address_family);
+ exit(1);
+ }
+ addrtot(&temp_addr, 0, ipaddr_txt, sizeof(ipaddr_txt));
+ fprintf(stdout, "%s: address_s extension assembled (%s).\n",
+ program_name, ipaddr_txt);
+ }
+
+ if(debug) {
+ addrtot(&edst, 0, ipaddr_txt, sizeof(ipaddr_txt));
+ fprintf(stdout, "%s: assembling address_d extension (%s).\n",
+ program_name, ipaddr_txt);
+ }
+
+ if((error = pfkey_address_build(&extensions[SADB_EXT_ADDRESS_DST],
+ SADB_EXT_ADDRESS_DST,
+ 0,
+ 0,
+ sockaddrof(&edst)))) {
+ addrtot(&edst, 0, ipaddr_txt, sizeof(ipaddr_txt));
+ fprintf(stderr, "%s: Trouble building address_d extension (%s), error=%d.\n",
+ program_name, ipaddr_txt, error);
+ pfkey_extensions_free(extensions);
+ exit(1);
+ }
+ if(debug) {
+ ip_address temp_addr;
+ switch(address_family) {
+ case AF_INET:
+ initaddr((const unsigned char *)&(((struct sockaddr_in*)( ((struct sadb_address*)(extensions[SADB_EXT_ADDRESS_DST])) + 1))->sin_addr),
+ 4, address_family, &temp_addr);
+ break;
+ case AF_INET6:
+ initaddr((const unsigned char *)&(((struct sockaddr_in6*)( ((struct sadb_address*)(extensions[SADB_EXT_ADDRESS_DST])) + 1))->sin6_addr),
+ 16, address_family, &temp_addr);
+ break;
+ default:
+ fprintf(stdout, "%s: unknown address family (%d).\n",
+ program_name, address_family);
+ exit(1);
+ }
+ addrtot(&temp_addr, 0, ipaddr_txt, sizeof(ipaddr_txt));
+ fprintf(stdout, "%s: address_d extension assembled (%s).\n",
+ program_name, ipaddr_txt);
+ }
+
+#if PFKEY_PROXY
+ anyaddr(address_family, &pfkey_address_p_ska);
+ if((error = pfkey_address_build(&extensions[SADB_EXT_ADDRESS_PROXY],
+ SADB_EXT_ADDRESS_PROXY,
+ 0,
+ 0,
+ sockaddrof(&pfkey_address_p_ska)))) {
+ fprintf(stderr, "%s: Trouble building address_p extension, error=%d.\n",
+ program_name, error);
+ pfkey_extensions_free(extensions);
+ exit(1);
+ }
+ if(debug) {
+ fprintf(stdout, "%s: address_p extension assembled.\n", program_name);
+ }
+#endif /* PFKEY_PROXY */
+
+ switch(alg) {
+#ifndef NO_KERNEL_ALG
+ /* Allow no auth ... after all is local root decision 8) */
+ case XF_OTHER_ALG:
+ if (!authalg)
+ break;
+#endif /* NO_KERNEL_ALG */
+ case XF_AHHMACMD5:
+ case XF_ESP3DESMD596:
+ case XF_AHHMACSHA1:
+ case XF_ESP3DESSHA196:
+ if((error = pfkey_key_build(&extensions[SADB_EXT_KEY_AUTH],
+ SADB_EXT_KEY_AUTH,
+ authkeylen * 8,
+ authkey))) {
+ fprintf(stderr, "%s: Trouble building key_a extension, error=%d.\n",
+ program_name, error);
+ pfkey_extensions_free(extensions);
+ exit(1);
+ }
+ if(debug) {
+ fprintf(stdout, "%s: key_a extension assembled.\n",
+ program_name);
+ }
+ break;
+ default:
+ break;
+ }
+
+ switch(alg) {
+ case XF_ESP3DES:
+ case XF_ESP3DESMD596:
+ case XF_ESP3DESSHA196:
+#ifndef NO_KERNEL_ALG
+ case XF_OTHER_ALG:
+#endif /* NO_KERNEL_ALG */
+ if((error = pfkey_key_build(&extensions[SADB_EXT_KEY_ENCRYPT],
+ SADB_EXT_KEY_ENCRYPT,
+ enckeylen * 8,
+ enckey))) {
+ fprintf(stderr, "%s: Trouble building key_e extension, error=%d.\n",
+ program_name, error);
+ pfkey_extensions_free(extensions);
+ exit(1);
+ }
+ if(debug) {
+ fprintf(stdout, "%s: key_e extension assembled.\n",
+ program_name);
+ }
+ break;
+ default:
+ break;
+ }
+
+#ifdef PFKEY_IDENT /* GG: looks wierd, not touched */
+ if((pfkey_ident_build(&extensions[SADB_EXT_IDENTITY_SRC],
+ SADB_EXT_IDENTITY_SRC,
+ SADB_IDENTTYPE_PREFIX,
+ 0,
+ strlen(pfkey_ident_s_ska),
+ pfkey_ident_s_ska))) {
+ fprintf(stderr, "%s: Trouble building ident_s extension, error=%d.\n",
+ program_name, error);
+ pfkey_extensions_free(extensions);
+ exit(1);
+ }
+ if(subnettoa(addr, mask, format, pfkey_ident_s_ska,
+ sizeof(pfkey_ident_s_ska) ) !=
+ sizeof(pfkey_ident_s_ska) ) {
+ exit (1);
+ }
+
+ if((error = pfkey_ident_build(&extensions[SADB_EXT_IDENTITY_DST],
+ SADB_EXT_IDENTITY_DST,
+ SADB_IDENTTYPE_PREFIX,
+ 0,
+ strlen(pfkey_ident_d_ska),
+ pfkey_ident_d_ska))) {
+ fprintf(stderr, "%s: Trouble building ident_d extension, error=%d.\n",
+ program_name, error);
+ pfkey_extensions_free(extensions);
+ exit(1);
+ }
+ if(subnettoa(addr, mask, format, pfkey_ident_d_ska,
+ sizeof(pfkey_ident_d_ska) ) !=
+ sizeof(pfkey_ident_d_ska) ) {
+ exit (1);
+ }
+
+ if(debug) {
+ fprintf(stdout, "%s: ident extensions assembled.\n",
+ program_name);
+ }
+#endif /* PFKEY_IDENT */
+ }
+
+ if(debug) {
+ fprintf(stdout, "%s: assembling pfkey msg....\n",
+ program_name);
+ }
+ if((error = pfkey_msg_build(&pfkey_msg, extensions, EXT_BITS_IN))) {
+ fprintf(stderr, "%s: Trouble building pfkey message, error=%d.\n",
+ program_name, error);
+ pfkey_extensions_free(extensions);
+ pfkey_msg_free(&pfkey_msg);
+ exit(1);
+ }
+ if(debug) {
+ fprintf(stdout, "%s: assembled.\n",
+ program_name);
+ }
+ if(debug) {
+ fprintf(stdout, "%s: writing pfkey msg.\n",
+ program_name);
+ }
+ io_error = write(pfkey_sock,
+ pfkey_msg,
+ pfkey_msg->sadb_msg_len * IPSEC_PFKEYv2_ALIGN);
+ if(io_error < 0) {
+ fprintf(stderr, "%s: pfkey write failed (errno=%d): ",
+ program_name, errno);
+ pfkey_extensions_free(extensions);
+ pfkey_msg_free(&pfkey_msg);
+ switch(errno) {
+ case EACCES:
+ fprintf(stderr, "access denied. ");
+ if(getuid() == 0) {
+ fprintf(stderr, "Check permissions. Should be 600.\n");
+ } else {
+ fprintf(stderr, "You must be root to open this file.\n");
+ }
+ break;
+ case EUNATCH:
+ fprintf(stderr, "Netlink not enabled OR KLIPS not loaded.\n");
+ break;
+ case EBUSY:
+ fprintf(stderr, "KLIPS is busy. Most likely a serious internal error occured in a previous command. Please report as much detail as possible to development team.\n");
+ break;
+ case EINVAL:
+ fprintf(stderr, "Invalid argument, check kernel log messages for specifics.\n");
+ break;
+ case ENODEV:
+ fprintf(stderr, "KLIPS not loaded or enabled.\n");
+ fprintf(stderr, "No device?!?\n");
+ break;
+ case ENOBUFS:
+ fprintf(stderr, "No kernel memory to allocate SA.\n");
+ break;
+ case ESOCKTNOSUPPORT:
+ fprintf(stderr, "Algorithm support not available in the kernel. Please compile in support.\n");
+ break;
+ case EEXIST:
+ fprintf(stderr, "SA already in use. Delete old one first.\n");
+ break;
+ case ENOENT:
+ fprintf(stderr, "device does not exist. See FreeS/WAN installation procedure.\n");
+ break;
+ case ENXIO:
+ case ESRCH:
+ fprintf(stderr, "SA does not exist. Cannot delete.\n");
+ break;
+ case ENOSPC:
+ fprintf(stderr, "no room in kernel SAref table. Cannot process request.\n");
+ break;
+ case ESPIPE:
+ fprintf(stderr, "kernel SAref table internal error. Cannot process request.\n");
+ break;
+ default:
+ fprintf(stderr, "Unknown socket write error %d (%s). Please report as much detail as possible to development team.\n",
+ errno, strerror(errno));
+ }
+ exit(1);
+ } else if (io_error != (ssize_t)(pfkey_msg->sadb_msg_len * IPSEC_PFKEYv2_ALIGN)) {
+ fprintf(stderr, "%s: pfkey write truncated to %d bytes\n",
+ program_name, (int)io_error);
+ pfkey_extensions_free(extensions);
+ pfkey_msg_free(&pfkey_msg);
+ exit(1);
+ }
+
+ if(debug) {
+ fprintf(stdout, "%s: pfkey command written to socket.\n",
+ program_name);
+ }
+
+ if(pfkey_msg) {
+ pfkey_extensions_free(extensions);
+ pfkey_msg_free(&pfkey_msg);
+ }
+ if(debug) {
+ fprintf(stdout, "%s: pfkey message buffer freed.\n",
+ program_name);
+ }
+ if(authkey) {
+ memset((caddr_t)authkey, 0, authkeylen);
+ free(authkey);
+ }
+ if(enckey) {
+ memset((caddr_t)enckey, 0, enckeylen);
+ free(enckey);
+ }
+ if(iv) {
+ memset((caddr_t)iv, 0, ivlen);
+ free(iv);
+ }
+
+ if(listenreply || saref) {
+ ssize_t readlen;
+ unsigned char pfkey_buf[PFKEYv2_MAX_MSGSIZE];
+
+ while((readlen = read(pfkey_sock, pfkey_buf, sizeof(pfkey_buf))) > 0) {
+ struct sadb_ext *extensions[SADB_EXT_MAX + 1];
+ pfkey_extensions_init(extensions);
+ pfkey_msg = (struct sadb_msg *)pfkey_buf;
+
+ /* first, see if we got enough for an sadb_msg */
+ if((size_t)readlen < sizeof(struct sadb_msg)) {
+ if(debug) {
+ printf("%s: runt packet of size: %ld (<%lu)\n",
+ program_name, (long)readlen, (unsigned long)sizeof(struct sadb_msg));
+ }
+ continue;
+ }
+
+ /* okay, we got enough for a message, print it out */
+ if(debug) {
+ printf("%s: pfkey v%d msg received. type=%d(%s) seq=%d len=%d pid=%d errno=%d satype=%d(%s)\n",
+ program_name,
+ pfkey_msg->sadb_msg_version,
+ pfkey_msg->sadb_msg_type,
+ pfkey_v2_sadb_type_string(pfkey_msg->sadb_msg_type),
+ pfkey_msg->sadb_msg_seq,
+ pfkey_msg->sadb_msg_len,
+ pfkey_msg->sadb_msg_pid,
+ pfkey_msg->sadb_msg_errno,
+ pfkey_msg->sadb_msg_satype,
+ satype2name(pfkey_msg->sadb_msg_satype));
+ }
+
+ if(readlen != (ssize_t)(pfkey_msg->sadb_msg_len * IPSEC_PFKEYv2_ALIGN))
+ {
+ if(debug) {
+ printf("%s: packet size read from socket=%d doesn't equal sadb_msg_len %u * %u; message not decoded\n",
+ program_name,
+ (int)readlen,
+ (unsigned)pfkey_msg->sadb_msg_len,
+ (unsigned)IPSEC_PFKEYv2_ALIGN);
+ }
+ continue;
+ }
+
+ if (pfkey_msg_parse(pfkey_msg, NULL, extensions, EXT_BITS_OUT)) {
+ if(debug) {
+ printf("%s: unparseable PF_KEY message.\n",
+ program_name);
+ }
+ continue;
+ } else {
+ if(debug) {
+ printf("%s: parseable PF_KEY message.\n",
+ program_name);
+ }
+ }
+ if((pid_t)pfkey_msg->sadb_msg_pid == mypid) {
+ if(saref) {
+ printf("%s: saref=%d\n",
+ program_name,
+ (extensions[SADB_EXT_SA] != NULL)
+ ? ((struct sadb_sa*)(extensions[SADB_EXT_SA]))->sadb_x_sa_ref
+ : IPSEC_SAREF_NULL);
+ }
+ break;
+ }
+ }
+ }
+ (void) close(pfkey_sock); /* close the socket */
+ if(debug || listenreply) {
+ printf("%s: exited normally\n", program_name);
+ }
+ exit(0);
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-09-20 11:37:21 +0000