diff options
Diffstat (limited to 'openssl-1.1.0h/crypto/x509v3/v3_crld.c')
| -rw-r--r-- | openssl-1.1.0h/crypto/x509v3/v3_crld.c | 509 |
1 files changed, 509 insertions, 0 deletions
diff --git a/openssl-1.1.0h/crypto/x509v3/v3_crld.c b/openssl-1.1.0h/crypto/x509v3/v3_crld.c new file mode 100644 index 0000000..c4c77f1 --- /dev/null +++ b/openssl-1.1.0h/crypto/x509v3/v3_crld.c @@ -0,0 +1,509 @@ +/* + * Copyright 1999-2016 The OpenSSL Project Authors. All Rights Reserved. + * + * Licensed under the OpenSSL license (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html + */ + +#include <stdio.h> +#include "internal/cryptlib.h" +#include <openssl/conf.h> +#include <openssl/asn1.h> +#include <openssl/asn1t.h> +#include <openssl/x509v3.h> + +#include "internal/x509_int.h" +#include "ext_dat.h" + +static void *v2i_crld(const X509V3_EXT_METHOD *method, + X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *nval); +static int i2r_crldp(const X509V3_EXT_METHOD *method, void *pcrldp, BIO *out, + int indent); + +const X509V3_EXT_METHOD v3_crld = { + NID_crl_distribution_points, 0, ASN1_ITEM_ref(CRL_DIST_POINTS), + 0, 0, 0, 0, + 0, 0, + 0, + v2i_crld, + i2r_crldp, 0, + NULL +}; + +const X509V3_EXT_METHOD v3_freshest_crl = { + NID_freshest_crl, 0, ASN1_ITEM_ref(CRL_DIST_POINTS), + 0, 0, 0, 0, + 0, 0, + 0, + v2i_crld, + i2r_crldp, 0, + NULL +}; + +static STACK_OF(GENERAL_NAME) *gnames_from_sectname(X509V3_CTX *ctx, + char *sect) +{ + STACK_OF(CONF_VALUE) *gnsect; + STACK_OF(GENERAL_NAME) *gens; + if (*sect == '@') + gnsect = X509V3_get_section(ctx, sect + 1); + else + gnsect = X509V3_parse_list(sect); + if (!gnsect) { + X509V3err(X509V3_F_GNAMES_FROM_SECTNAME, X509V3_R_SECTION_NOT_FOUND); + return NULL; + } + gens = v2i_GENERAL_NAMES(NULL, ctx, gnsect); + if (*sect == '@') + X509V3_section_free(ctx, gnsect); + else + sk_CONF_VALUE_pop_free(gnsect, X509V3_conf_free); + return gens; +} + +static int set_dist_point_name(DIST_POINT_NAME **pdp, X509V3_CTX *ctx, + CONF_VALUE *cnf) +{ + STACK_OF(GENERAL_NAME) *fnm = NULL; + STACK_OF(X509_NAME_ENTRY) *rnm = NULL; + + if (strncmp(cnf->name, "fullname", 9) == 0) { + fnm = gnames_from_sectname(ctx, cnf->value); + if (!fnm) + goto err; + } else if (strcmp(cnf->name, "relativename") == 0) { + int ret; + STACK_OF(CONF_VALUE) *dnsect; + X509_NAME *nm; + nm = X509_NAME_new(); + if (nm == NULL) + return -1; + dnsect = X509V3_get_section(ctx, cnf->value); + if (!dnsect) { + X509V3err(X509V3_F_SET_DIST_POINT_NAME, + X509V3_R_SECTION_NOT_FOUND); + return -1; + } + ret = X509V3_NAME_from_section(nm, dnsect, MBSTRING_ASC); + X509V3_section_free(ctx, dnsect); + rnm = nm->entries; + nm->entries = NULL; + X509_NAME_free(nm); + if (!ret || sk_X509_NAME_ENTRY_num(rnm) <= 0) + goto err; + /* + * Since its a name fragment can't have more than one RDNSequence + */ + if (sk_X509_NAME_ENTRY_value(rnm, + sk_X509_NAME_ENTRY_num(rnm) - 1)->set) { + X509V3err(X509V3_F_SET_DIST_POINT_NAME, + X509V3_R_INVALID_MULTIPLE_RDNS); + goto err; + } + } else + return 0; + + if (*pdp) { + X509V3err(X509V3_F_SET_DIST_POINT_NAME, + X509V3_R_DISTPOINT_ALREADY_SET); + goto err; + } + + *pdp = DIST_POINT_NAME_new(); + if (*pdp == NULL) + goto err; + if (fnm) { + (*pdp)->type = 0; + (*pdp)->name.fullname = fnm; + } else { + (*pdp)->type = 1; + (*pdp)->name.relativename = rnm; + } + + return 1; + + err: + sk_GENERAL_NAME_pop_free(fnm, GENERAL_NAME_free); + sk_X509_NAME_ENTRY_pop_free(rnm, X509_NAME_ENTRY_free); + return -1; +} + +static const BIT_STRING_BITNAME reason_flags[] = { + {0, "Unused", "unused"}, + {1, "Key Compromise", "keyCompromise"}, + {2, "CA Compromise", "CACompromise"}, + {3, "Affiliation Changed", "affiliationChanged"}, + {4, "Superseded", "superseded"}, + {5, "Cessation Of Operation", "cessationOfOperation"}, + {6, "Certificate Hold", "certificateHold"}, + {7, "Privilege Withdrawn", "privilegeWithdrawn"}, + {8, "AA Compromise", "AACompromise"}, + {-1, NULL, NULL} +}; + +static int set_reasons(ASN1_BIT_STRING **preas, char *value) +{ + STACK_OF(CONF_VALUE) *rsk = NULL; + const BIT_STRING_BITNAME *pbn; + const char *bnam; + int i, ret = 0; + rsk = X509V3_parse_list(value); + if (rsk == NULL) + return 0; + if (*preas != NULL) + goto err; + for (i = 0; i < sk_CONF_VALUE_num(rsk); i++) { + bnam = sk_CONF_VALUE_value(rsk, i)->name; + if (*preas == NULL) { + *preas = ASN1_BIT_STRING_new(); + if (*preas == NULL) + goto err; + } + for (pbn = reason_flags; pbn->lname; pbn++) { + if (strcmp(pbn->sname, bnam) == 0) { + if (!ASN1_BIT_STRING_set_bit(*preas, pbn->bitnum, 1)) + goto err; + break; + } + } + if (!pbn->lname) + goto err; + } + ret = 1; + + err: + sk_CONF_VALUE_pop_free(rsk, X509V3_conf_free); + return ret; +} + +static int print_reasons(BIO *out, const char *rname, + ASN1_BIT_STRING *rflags, int indent) +{ + int first = 1; + const BIT_STRING_BITNAME *pbn; + BIO_printf(out, "%*s%s:\n%*s", indent, "", rname, indent + 2, ""); + for (pbn = reason_flags; pbn->lname; pbn++) { + if (ASN1_BIT_STRING_get_bit(rflags, pbn->bitnum)) { + if (first) + first = 0; + else + BIO_puts(out, ", "); + BIO_puts(out, pbn->lname); + } + } + if (first) + BIO_puts(out, "<EMPTY>\n"); + else + BIO_puts(out, "\n"); + return 1; +} + +static DIST_POINT *crldp_from_section(X509V3_CTX *ctx, + STACK_OF(CONF_VALUE) *nval) +{ + int i; + CONF_VALUE *cnf; + DIST_POINT *point = NULL; + point = DIST_POINT_new(); + if (point == NULL) + goto err; + for (i = 0; i < sk_CONF_VALUE_num(nval); i++) { + int ret; + cnf = sk_CONF_VALUE_value(nval, i); + ret = set_dist_point_name(&point->distpoint, ctx, cnf); + if (ret > 0) + continue; + if (ret < 0) + goto err; + if (strcmp(cnf->name, "reasons") == 0) { + if (!set_reasons(&point->reasons, cnf->value)) + goto err; + } else if (strcmp(cnf->name, "CRLissuer") == 0) { + point->CRLissuer = gnames_from_sectname(ctx, cnf->value); + if (!point->CRLissuer) + goto err; + } + } + + return point; + + err: + DIST_POINT_free(point); + return NULL; +} + +static void *v2i_crld(const X509V3_EXT_METHOD *method, + X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *nval) +{ + STACK_OF(DIST_POINT) *crld = NULL; + GENERAL_NAMES *gens = NULL; + GENERAL_NAME *gen = NULL; + CONF_VALUE *cnf; + int i; + + if ((crld = sk_DIST_POINT_new_null()) == NULL) + goto merr; + for (i = 0; i < sk_CONF_VALUE_num(nval); i++) { + DIST_POINT *point; + cnf = sk_CONF_VALUE_value(nval, i); + if (!cnf->value) { + STACK_OF(CONF_VALUE) *dpsect; + dpsect = X509V3_get_section(ctx, cnf->name); + if (!dpsect) + goto err; + point = crldp_from_section(ctx, dpsect); + X509V3_section_free(ctx, dpsect); + if (!point) + goto err; + if (!sk_DIST_POINT_push(crld, point)) { + DIST_POINT_free(point); + goto merr; + } + } else { + if ((gen = v2i_GENERAL_NAME(method, ctx, cnf)) == NULL) + goto err; + if ((gens = GENERAL_NAMES_new()) == NULL) + goto merr; + if (!sk_GENERAL_NAME_push(gens, gen)) + goto merr; + gen = NULL; + if ((point = DIST_POINT_new()) == NULL) + goto merr; + if (!sk_DIST_POINT_push(crld, point)) { + DIST_POINT_free(point); + goto merr; + } + if ((point->distpoint = DIST_POINT_NAME_new()) == NULL) + goto merr; + point->distpoint->name.fullname = gens; + point->distpoint->type = 0; + gens = NULL; + } + } + return crld; + + merr: + X509V3err(X509V3_F_V2I_CRLD, ERR_R_MALLOC_FAILURE); + err: + GENERAL_NAME_free(gen); + GENERAL_NAMES_free(gens); + sk_DIST_POINT_pop_free(crld, DIST_POINT_free); + return NULL; +} + +static int dpn_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it, + void *exarg) +{ + DIST_POINT_NAME *dpn = (DIST_POINT_NAME *)*pval; + + switch (operation) { + case ASN1_OP_NEW_POST: + dpn->dpname = NULL; + break; + + case ASN1_OP_FREE_POST: + X509_NAME_free(dpn->dpname); + break; + } + return 1; +} + + +ASN1_CHOICE_cb(DIST_POINT_NAME, dpn_cb) = { + ASN1_IMP_SEQUENCE_OF(DIST_POINT_NAME, name.fullname, GENERAL_NAME, 0), + ASN1_IMP_SET_OF(DIST_POINT_NAME, name.relativename, X509_NAME_ENTRY, 1) +} ASN1_CHOICE_END_cb(DIST_POINT_NAME, DIST_POINT_NAME, type) + + +IMPLEMENT_ASN1_FUNCTIONS(DIST_POINT_NAME) + +ASN1_SEQUENCE(DIST_POINT) = { + ASN1_EXP_OPT(DIST_POINT, distpoint, DIST_POINT_NAME, 0), + ASN1_IMP_OPT(DIST_POINT, reasons, ASN1_BIT_STRING, 1), + ASN1_IMP_SEQUENCE_OF_OPT(DIST_POINT, CRLissuer, GENERAL_NAME, 2) +} ASN1_SEQUENCE_END(DIST_POINT) + +IMPLEMENT_ASN1_FUNCTIONS(DIST_POINT) + +ASN1_ITEM_TEMPLATE(CRL_DIST_POINTS) = + ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF, 0, CRLDistributionPoints, DIST_POINT) +ASN1_ITEM_TEMPLATE_END(CRL_DIST_POINTS) + +IMPLEMENT_ASN1_FUNCTIONS(CRL_DIST_POINTS) + +ASN1_SEQUENCE(ISSUING_DIST_POINT) = { + ASN1_EXP_OPT(ISSUING_DIST_POINT, distpoint, DIST_POINT_NAME, 0), + ASN1_IMP_OPT(ISSUING_DIST_POINT, onlyuser, ASN1_FBOOLEAN, 1), + ASN1_IMP_OPT(ISSUING_DIST_POINT, onlyCA, ASN1_FBOOLEAN, 2), + ASN1_IMP_OPT(ISSUING_DIST_POINT, onlysomereasons, ASN1_BIT_STRING, 3), + ASN1_IMP_OPT(ISSUING_DIST_POINT, indirectCRL, ASN1_FBOOLEAN, 4), + ASN1_IMP_OPT(ISSUING_DIST_POINT, onlyattr, ASN1_FBOOLEAN, 5) +} ASN1_SEQUENCE_END(ISSUING_DIST_POINT) + +IMPLEMENT_ASN1_FUNCTIONS(ISSUING_DIST_POINT) + +static int i2r_idp(const X509V3_EXT_METHOD *method, void *pidp, BIO *out, + int indent); +static void *v2i_idp(const X509V3_EXT_METHOD *method, X509V3_CTX *ctx, + STACK_OF(CONF_VALUE) *nval); + +const X509V3_EXT_METHOD v3_idp = { + NID_issuing_distribution_point, X509V3_EXT_MULTILINE, + ASN1_ITEM_ref(ISSUING_DIST_POINT), + 0, 0, 0, 0, + 0, 0, + 0, + v2i_idp, + i2r_idp, 0, + NULL +}; + +static void *v2i_idp(const X509V3_EXT_METHOD *method, X509V3_CTX *ctx, + STACK_OF(CONF_VALUE) *nval) +{ + ISSUING_DIST_POINT *idp = NULL; + CONF_VALUE *cnf; + char *name, *val; + int i, ret; + idp = ISSUING_DIST_POINT_new(); + if (idp == NULL) + goto merr; + for (i = 0; i < sk_CONF_VALUE_num(nval); i++) { + cnf = sk_CONF_VALUE_value(nval, i); + name = cnf->name; + val = cnf->value; + ret = set_dist_point_name(&idp->distpoint, ctx, cnf); + if (ret > 0) + continue; + if (ret < 0) + goto err; + if (strcmp(name, "onlyuser") == 0) { + if (!X509V3_get_value_bool(cnf, &idp->onlyuser)) + goto err; + } else if (strcmp(name, "onlyCA") == 0) { + if (!X509V3_get_value_bool(cnf, &idp->onlyCA)) + goto err; + } else if (strcmp(name, "onlyAA") == 0) { + if (!X509V3_get_value_bool(cnf, &idp->onlyattr)) + goto err; + } else if (strcmp(name, "indirectCRL") == 0) { + if (!X509V3_get_value_bool(cnf, &idp->indirectCRL)) + goto err; + } else if (strcmp(name, "onlysomereasons") == 0) { + if (!set_reasons(&idp->onlysomereasons, val)) + goto err; + } else { + X509V3err(X509V3_F_V2I_IDP, X509V3_R_INVALID_NAME); + X509V3_conf_err(cnf); + goto err; + } + } + return idp; + + merr: + X509V3err(X509V3_F_V2I_IDP, ERR_R_MALLOC_FAILURE); + err: + ISSUING_DIST_POINT_free(idp); + return NULL; +} + +static int print_gens(BIO *out, STACK_OF(GENERAL_NAME) *gens, int indent) +{ + int i; + for (i = 0; i < sk_GENERAL_NAME_num(gens); i++) { + BIO_printf(out, "%*s", indent + 2, ""); + GENERAL_NAME_print(out, sk_GENERAL_NAME_value(gens, i)); + BIO_puts(out, "\n"); + } + return 1; +} + +static int print_distpoint(BIO *out, DIST_POINT_NAME *dpn, int indent) +{ + if (dpn->type == 0) { + BIO_printf(out, "%*sFull Name:\n", indent, ""); + print_gens(out, dpn->name.fullname, indent); + } else { + X509_NAME ntmp; + ntmp.entries = dpn->name.relativename; + BIO_printf(out, "%*sRelative Name:\n%*s", indent, "", indent + 2, ""); + X509_NAME_print_ex(out, &ntmp, 0, XN_FLAG_ONELINE); + BIO_puts(out, "\n"); + } + return 1; +} + +static int i2r_idp(const X509V3_EXT_METHOD *method, void *pidp, BIO *out, + int indent) +{ + ISSUING_DIST_POINT *idp = pidp; + if (idp->distpoint) + print_distpoint(out, idp->distpoint, indent); + if (idp->onlyuser > 0) + BIO_printf(out, "%*sOnly User Certificates\n", indent, ""); + if (idp->onlyCA > 0) + BIO_printf(out, "%*sOnly CA Certificates\n", indent, ""); + if (idp->indirectCRL > 0) + BIO_printf(out, "%*sIndirect CRL\n", indent, ""); + if (idp->onlysomereasons) + print_reasons(out, "Only Some Reasons", idp->onlysomereasons, indent); + if (idp->onlyattr > 0) + BIO_printf(out, "%*sOnly Attribute Certificates\n", indent, ""); + if (!idp->distpoint && (idp->onlyuser <= 0) && (idp->onlyCA <= 0) + && (idp->indirectCRL <= 0) && !idp->onlysomereasons + && (idp->onlyattr <= 0)) + BIO_printf(out, "%*s<EMPTY>\n", indent, ""); + + return 1; +} + +static int i2r_crldp(const X509V3_EXT_METHOD *method, void *pcrldp, BIO *out, + int indent) +{ + STACK_OF(DIST_POINT) *crld = pcrldp; + DIST_POINT *point; + int i; + for (i = 0; i < sk_DIST_POINT_num(crld); i++) { + BIO_puts(out, "\n"); + point = sk_DIST_POINT_value(crld, i); + if (point->distpoint) + print_distpoint(out, point->distpoint, indent); + if (point->reasons) + print_reasons(out, "Reasons", point->reasons, indent); + if (point->CRLissuer) { + BIO_printf(out, "%*sCRL Issuer:\n", indent, ""); + print_gens(out, point->CRLissuer, indent); + } + } + return 1; +} + +int DIST_POINT_set_dpname(DIST_POINT_NAME *dpn, X509_NAME *iname) +{ + int i; + STACK_OF(X509_NAME_ENTRY) *frag; + X509_NAME_ENTRY *ne; + if (!dpn || (dpn->type != 1)) + return 1; + frag = dpn->name.relativename; + dpn->dpname = X509_NAME_dup(iname); + if (!dpn->dpname) + return 0; + for (i = 0; i < sk_X509_NAME_ENTRY_num(frag); i++) { + ne = sk_X509_NAME_ENTRY_value(frag, i); + if (!X509_NAME_add_entry(dpn->dpname, ne, -1, i ? 0 : 1)) { + X509_NAME_free(dpn->dpname); + dpn->dpname = NULL; + return 0; + } + } + /* generate cached encoding of name */ + if (i2d_X509_NAME(dpn->dpname, NULL) < 0) { + X509_NAME_free(dpn->dpname); + dpn->dpname = NULL; + return 0; + } + return 1; +} |