[abd7c25] | 1 | #include <assert.h> |
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| 2 | #include <getopt.h> |
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| 3 | #include <stdio.h> |
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| 4 | #include <stdlib.h> |
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| 5 | #include <string.h> |
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| 6 | |
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| 7 | #include "creddy.h" |
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| 8 | |
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| 9 | #define OPT_CN 1 |
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| 10 | #define OPT_VALIDITY 2 |
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[fd0febd] | 11 | #define OPT_CERT 3 |
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[abd7c25] | 12 | |
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| 13 | int main(int argc, char **argv) { |
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| 14 | int ret; |
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| 15 | options_t options = { 0, }; |
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| 16 | |
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| 17 | options.validity = 1080; |
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| 18 | |
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| 19 | struct option getopts[] = { |
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| 20 | { "help", 0, &options.help, 1 }, |
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| 21 | { "generate", 0, &options.mode, MODE_GENERATE }, |
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| 22 | { "verify", 0, &options.mode, MODE_VERIFY }, |
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| 23 | { "keyid", 0, &options.mode, MODE_KEYID }, |
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| 24 | { "attribute", 0, &options.mode, MODE_ATTRIBUTE }, |
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| 25 | { "roles", 0, &options.mode, MODE_ROLES }, |
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| 26 | |
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[fd0febd] | 27 | { "cert", 1, 0, OPT_CERT }, |
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| 28 | |
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[abd7c25] | 29 | // generate options |
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| 30 | { "cn", 1, 0, OPT_CN }, |
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| 31 | { "validity", 1, 0, OPT_VALIDITY }, |
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| 32 | |
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| 33 | { NULL }, |
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| 34 | }; |
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| 35 | |
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| 36 | for ( ; ; ) { |
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| 37 | int c = getopt_long(argc, argv, "", getopts, NULL); |
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| 38 | if (c < 0) |
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| 39 | break; |
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| 40 | |
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| 41 | switch (c) { |
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| 42 | // set the option from the value in the getopts struct |
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| 43 | case 0: |
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| 44 | continue; |
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| 45 | |
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[fd0febd] | 46 | case OPT_CERT: |
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| 47 | options.cert = xstrdup(optarg); |
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| 48 | break; |
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| 49 | |
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[abd7c25] | 50 | // generate options |
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| 51 | case OPT_CN: |
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| 52 | options.cn = xstrdup(optarg); |
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| 53 | break; |
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| 54 | case OPT_VALIDITY: |
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| 55 | options.validity = atoi(optarg); |
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| 56 | break; |
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| 57 | |
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| 58 | case '?': |
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| 59 | break; |
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| 60 | |
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| 61 | default: |
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| 62 | printf("wat\n"); |
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| 63 | return 45; |
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| 64 | } |
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| 65 | } |
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| 66 | |
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| 67 | if (options.help || optind < argc) { |
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| 68 | if (optind > 0 && optind < argc) |
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| 69 | printf("I don't understand %s\n", argv[optind]); |
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| 70 | usage(&options); |
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| 71 | } |
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| 72 | |
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| 73 | // init libstrongswan |
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| 74 | atexit(library_deinit); |
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[219f8ad] | 75 | dbg_default_set_level(-1); |
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[abd7c25] | 76 | ret = library_init(NULL); |
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| 77 | if (!ret) |
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| 78 | exit(SS_RC_LIBSTRONGSWAN_INTEGRITY); |
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| 79 | ret = lib->plugins->load( |
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| 80 | lib->plugins, |
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| 81 | NULL, |
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| 82 | lib->settings->get_str(lib->settings, "", PLUGINS) |
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| 83 | ); |
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| 84 | if (!ret) |
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| 85 | exit(SS_RC_LIBSTRONGSWAN_INTEGRITY); |
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| 86 | |
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| 87 | switch (options.mode) { |
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| 88 | case MODE_GENERATE: |
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| 89 | generate_main(&options); |
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| 90 | break; |
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| 91 | |
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[fd0febd] | 92 | case MODE_KEYID: |
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| 93 | keyid_main(&options); |
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| 94 | break; |
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| 95 | |
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[abd7c25] | 96 | default: |
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| 97 | usage(&options); |
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| 98 | } |
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| 99 | |
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| 100 | return 0; |
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| 101 | } |
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| 102 | |
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| 103 | void usage(options_t *opts) { |
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| 104 | if (opts->mode == MODE_GENERATE) |
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| 105 | printf( |
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| 106 | "Usage: creddy --generate --cn <name> [ --validity <day> ]\n" |
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| 107 | " cert will be in ${name}_ID.der, private key in ${name}_private.der\n" |
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| 108 | " default validity: 1080 days\n" |
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| 109 | ); |
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| 110 | |
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| 111 | else if (opts->mode == MODE_VERIFY) |
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| 112 | printf( |
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| 113 | "Usage: identity --verify --cert <cert> [ --attrcert <cert> ]\n" |
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| 114 | " if attrcert is provided, verify that it was issued by cert\n" |
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| 115 | ); |
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| 116 | |
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| 117 | else if (opts->mode == MODE_KEYID) |
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| 118 | printf( |
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| 119 | "Usage: identity --keyid --cert <cert>\n" |
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| 120 | ); |
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| 121 | |
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| 122 | else if (opts->mode == MODE_ATTRIBUTE) |
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| 123 | printf( |
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| 124 | "Usage: identity --attribute \\\n" |
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| 125 | " --issuer <cert> --key <key> --role <role> \\\n" |
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| 126 | " --subject <cert> [ --subject-role <role> ] \\\n" |
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| 127 | " [ --validity <days> ] --out <file>\n" |
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| 128 | " default validity: 365 days\n" |
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| 129 | ); |
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| 130 | |
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| 131 | else if (opts->mode == MODE_ROLES) |
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| 132 | printf( |
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| 133 | "Usage: identity --roles --cert <cert>\n" |
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| 134 | ); |
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| 135 | |
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| 136 | else |
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| 137 | printf( |
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| 138 | "Usage: creddy [--<mode>] [--help]\n" |
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| 139 | " --generate: generate X.509 identity cert and private key\n" |
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| 140 | " --verify: check validity of X.509 ID or attribute cert\n" |
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| 141 | " --keyid: get fingerprint from X.509 ID cert\n" |
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| 142 | " --attribute: generate an X.509 attribute cert\n" |
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| 143 | " --roles: list roles from an X.509 attribute cert\n" |
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| 144 | ); |
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| 145 | |
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| 146 | |
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| 147 | exit(1); |
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| 148 | } |
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| 149 | |
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| 150 | void *xmalloc(size_t len) { |
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| 151 | void *ret = malloc(len); |
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| 152 | if (ret == NULL) |
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| 153 | err(1, "couldn't malloc %d bytes\n", len); |
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| 154 | return ret; |
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| 155 | } |
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| 156 | |
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| 157 | char *xstrdup(char *string) { |
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| 158 | char *dup = strdup(string); |
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| 159 | if (dup == NULL) |
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| 160 | err(1, "Can't dup %s", string); |
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| 161 | return dup; |
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| 162 | } |
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| 163 | |
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| 164 | int clean_name(char *string) { |
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| 165 | int i; |
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| 166 | |
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| 167 | assert(string != NULL); |
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| 168 | |
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| 169 | // must start with a letter |
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| 170 | if (!isalpha(string[0])) |
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| 171 | return 0; |
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| 172 | |
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| 173 | // rest must be alphanumeric |
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| 174 | for (i = 1; string[i] != '\0'; ++i) |
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| 175 | if (!isalnum(string[i])) |
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| 176 | return 0; |
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| 177 | |
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| 178 | return 1; |
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| 179 | } |
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[fd0febd] | 180 | |
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| 181 | // load an ID cert from file |
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| 182 | certificate_t *cert_from_file(char *filename) { |
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| 183 | certificate_t *cert = lib->creds->create(lib->creds, |
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| 184 | CRED_CERTIFICATE, CERT_X509, |
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| 185 | BUILD_FROM_FILE, filename, |
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| 186 | BUILD_X509_FLAG, X509_AA, |
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| 187 | BUILD_END |
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| 188 | ); |
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| 189 | |
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| 190 | if (cert == NULL) |
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| 191 | errx(1, "Can't open cert from %s", filename); |
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| 192 | |
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| 193 | return cert; |
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| 194 | } |
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