diff options
Diffstat (limited to 'openssl-1.1.0h/crypto/asn1/tasn_prn.c')
| -rw-r--r-- | openssl-1.1.0h/crypto/asn1/tasn_prn.c | 538 |
1 files changed, 538 insertions, 0 deletions
diff --git a/openssl-1.1.0h/crypto/asn1/tasn_prn.c b/openssl-1.1.0h/crypto/asn1/tasn_prn.c new file mode 100644 index 0000000..53a9ee8 --- /dev/null +++ b/openssl-1.1.0h/crypto/asn1/tasn_prn.c @@ -0,0 +1,538 @@ +/* + * Copyright 2000-2016 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 <stddef.h> +#include "internal/cryptlib.h" +#include <openssl/asn1.h> +#include <openssl/asn1t.h> +#include <openssl/objects.h> +#include <openssl/buffer.h> +#include <openssl/err.h> +#include <openssl/x509v3.h> +#include "internal/asn1_int.h" +#include "asn1_locl.h" + +/* + * Print routines. + */ + +/* ASN1_PCTX routines */ + +static ASN1_PCTX default_pctx = { + ASN1_PCTX_FLAGS_SHOW_ABSENT, /* flags */ + 0, /* nm_flags */ + 0, /* cert_flags */ + 0, /* oid_flags */ + 0 /* str_flags */ +}; + +ASN1_PCTX *ASN1_PCTX_new(void) +{ + ASN1_PCTX *ret; + + ret = OPENSSL_zalloc(sizeof(*ret)); + if (ret == NULL) { + ASN1err(ASN1_F_ASN1_PCTX_NEW, ERR_R_MALLOC_FAILURE); + return NULL; + } + return ret; +} + +void ASN1_PCTX_free(ASN1_PCTX *p) +{ + OPENSSL_free(p); +} + +unsigned long ASN1_PCTX_get_flags(const ASN1_PCTX *p) +{ + return p->flags; +} + +void ASN1_PCTX_set_flags(ASN1_PCTX *p, unsigned long flags) +{ + p->flags = flags; +} + +unsigned long ASN1_PCTX_get_nm_flags(const ASN1_PCTX *p) +{ + return p->nm_flags; +} + +void ASN1_PCTX_set_nm_flags(ASN1_PCTX *p, unsigned long flags) +{ + p->nm_flags = flags; +} + +unsigned long ASN1_PCTX_get_cert_flags(const ASN1_PCTX *p) +{ + return p->cert_flags; +} + +void ASN1_PCTX_set_cert_flags(ASN1_PCTX *p, unsigned long flags) +{ + p->cert_flags = flags; +} + +unsigned long ASN1_PCTX_get_oid_flags(const ASN1_PCTX *p) +{ + return p->oid_flags; +} + +void ASN1_PCTX_set_oid_flags(ASN1_PCTX *p, unsigned long flags) +{ + p->oid_flags = flags; +} + +unsigned long ASN1_PCTX_get_str_flags(const ASN1_PCTX *p) +{ + return p->str_flags; +} + +void ASN1_PCTX_set_str_flags(ASN1_PCTX *p, unsigned long flags) +{ + p->str_flags = flags; +} + +/* Main print routines */ + +static int asn1_item_print_ctx(BIO *out, ASN1_VALUE **fld, int indent, + const ASN1_ITEM *it, + const char *fname, const char *sname, + int nohdr, const ASN1_PCTX *pctx); + +static int asn1_template_print_ctx(BIO *out, ASN1_VALUE **fld, int indent, + const ASN1_TEMPLATE *tt, const ASN1_PCTX *pctx); + +static int asn1_primitive_print(BIO *out, ASN1_VALUE **fld, + const ASN1_ITEM *it, int indent, + const char *fname, const char *sname, + const ASN1_PCTX *pctx); + +static int asn1_print_fsname(BIO *out, int indent, + const char *fname, const char *sname, + const ASN1_PCTX *pctx); + +int ASN1_item_print(BIO *out, ASN1_VALUE *ifld, int indent, + const ASN1_ITEM *it, const ASN1_PCTX *pctx) +{ + const char *sname; + if (pctx == NULL) + pctx = &default_pctx; + if (pctx->flags & ASN1_PCTX_FLAGS_NO_STRUCT_NAME) + sname = NULL; + else + sname = it->sname; + return asn1_item_print_ctx(out, &ifld, indent, it, NULL, sname, 0, pctx); +} + +static int asn1_item_print_ctx(BIO *out, ASN1_VALUE **fld, int indent, + const ASN1_ITEM *it, + const char *fname, const char *sname, + int nohdr, const ASN1_PCTX *pctx) +{ + const ASN1_TEMPLATE *tt; + const ASN1_EXTERN_FUNCS *ef; + ASN1_VALUE **tmpfld; + const ASN1_AUX *aux = it->funcs; + ASN1_aux_cb *asn1_cb; + ASN1_PRINT_ARG parg; + int i; + if (aux && aux->asn1_cb) { + parg.out = out; + parg.indent = indent; + parg.pctx = pctx; + asn1_cb = aux->asn1_cb; + } else + asn1_cb = 0; + + if (((it->itype != ASN1_ITYPE_PRIMITIVE) + || (it->utype != V_ASN1_BOOLEAN)) && *fld == NULL) { + if (pctx->flags & ASN1_PCTX_FLAGS_SHOW_ABSENT) { + if (!nohdr && !asn1_print_fsname(out, indent, fname, sname, pctx)) + return 0; + if (BIO_puts(out, "<ABSENT>\n") <= 0) + return 0; + } + return 1; + } + + switch (it->itype) { + case ASN1_ITYPE_PRIMITIVE: + if (it->templates) { + if (!asn1_template_print_ctx(out, fld, indent, + it->templates, pctx)) + return 0; + break; + } + /* fall through */ + case ASN1_ITYPE_MSTRING: + if (!asn1_primitive_print(out, fld, it, indent, fname, sname, pctx)) + return 0; + break; + + case ASN1_ITYPE_EXTERN: + if (!nohdr && !asn1_print_fsname(out, indent, fname, sname, pctx)) + return 0; + /* Use new style print routine if possible */ + ef = it->funcs; + if (ef && ef->asn1_ex_print) { + i = ef->asn1_ex_print(out, fld, indent, "", pctx); + if (!i) + return 0; + if ((i == 2) && (BIO_puts(out, "\n") <= 0)) + return 0; + return 1; + } else if (sname && + BIO_printf(out, ":EXTERNAL TYPE %s\n", sname) <= 0) + return 0; + break; + + case ASN1_ITYPE_CHOICE: + /* CHOICE type, get selector */ + i = asn1_get_choice_selector(fld, it); + /* This should never happen... */ + if ((i < 0) || (i >= it->tcount)) { + if (BIO_printf(out, "ERROR: selector [%d] invalid\n", i) <= 0) + return 0; + return 1; + } + tt = it->templates + i; + tmpfld = asn1_get_field_ptr(fld, tt); + if (!asn1_template_print_ctx(out, tmpfld, indent, tt, pctx)) + return 0; + break; + + case ASN1_ITYPE_SEQUENCE: + case ASN1_ITYPE_NDEF_SEQUENCE: + if (!nohdr && !asn1_print_fsname(out, indent, fname, sname, pctx)) + return 0; + if (fname || sname) { + if (pctx->flags & ASN1_PCTX_FLAGS_SHOW_SEQUENCE) { + if (BIO_puts(out, " {\n") <= 0) + return 0; + } else { + if (BIO_puts(out, "\n") <= 0) + return 0; + } + } + + if (asn1_cb) { + i = asn1_cb(ASN1_OP_PRINT_PRE, fld, it, &parg); + if (i == 0) + return 0; + if (i == 2) + return 1; + } + + /* Print each field entry */ + for (i = 0, tt = it->templates; i < it->tcount; i++, tt++) { + const ASN1_TEMPLATE *seqtt; + seqtt = asn1_do_adb(fld, tt, 1); + if (!seqtt) + return 0; + tmpfld = asn1_get_field_ptr(fld, seqtt); + if (!asn1_template_print_ctx(out, tmpfld, + indent + 2, seqtt, pctx)) + return 0; + } + if (pctx->flags & ASN1_PCTX_FLAGS_SHOW_SEQUENCE) { + if (BIO_printf(out, "%*s}\n", indent, "") < 0) + return 0; + } + + if (asn1_cb) { + i = asn1_cb(ASN1_OP_PRINT_POST, fld, it, &parg); + if (i == 0) + return 0; + } + break; + + default: + BIO_printf(out, "Unprocessed type %d\n", it->itype); + return 0; + } + + return 1; +} + +static int asn1_template_print_ctx(BIO *out, ASN1_VALUE **fld, int indent, + const ASN1_TEMPLATE *tt, const ASN1_PCTX *pctx) +{ + int i, flags; + const char *sname, *fname; + ASN1_VALUE *tfld; + flags = tt->flags; + if (pctx->flags & ASN1_PCTX_FLAGS_SHOW_FIELD_STRUCT_NAME) + sname = ASN1_ITEM_ptr(tt->item)->sname; + else + sname = NULL; + if (pctx->flags & ASN1_PCTX_FLAGS_NO_FIELD_NAME) + fname = NULL; + else + fname = tt->field_name; + + /* + * If field is embedded then fld needs fixing so it is a pointer to + * a pointer to a field. + */ + if (flags & ASN1_TFLG_EMBED) { + tfld = (ASN1_VALUE *)fld; + fld = &tfld; + } + + if (flags & ASN1_TFLG_SK_MASK) { + char *tname; + ASN1_VALUE *skitem; + STACK_OF(ASN1_VALUE) *stack; + + /* SET OF, SEQUENCE OF */ + if (fname) { + if (pctx->flags & ASN1_PCTX_FLAGS_SHOW_SSOF) { + if (flags & ASN1_TFLG_SET_OF) + tname = "SET"; + else + tname = "SEQUENCE"; + if (BIO_printf(out, "%*s%s OF %s {\n", + indent, "", tname, tt->field_name) <= 0) + return 0; + } else if (BIO_printf(out, "%*s%s:\n", indent, "", fname) <= 0) + return 0; + } + stack = (STACK_OF(ASN1_VALUE) *)*fld; + for (i = 0; i < sk_ASN1_VALUE_num(stack); i++) { + if ((i > 0) && (BIO_puts(out, "\n") <= 0)) + return 0; + + skitem = sk_ASN1_VALUE_value(stack, i); + if (!asn1_item_print_ctx(out, &skitem, indent + 2, + ASN1_ITEM_ptr(tt->item), NULL, NULL, 1, + pctx)) + return 0; + } + if (!i && BIO_printf(out, "%*s<EMPTY>\n", indent + 2, "") <= 0) + return 0; + if (pctx->flags & ASN1_PCTX_FLAGS_SHOW_SEQUENCE) { + if (BIO_printf(out, "%*s}\n", indent, "") <= 0) + return 0; + } + return 1; + } + return asn1_item_print_ctx(out, fld, indent, ASN1_ITEM_ptr(tt->item), + fname, sname, 0, pctx); +} + +static int asn1_print_fsname(BIO *out, int indent, + const char *fname, const char *sname, + const ASN1_PCTX *pctx) +{ + static const char spaces[] = " "; + static const int nspaces = sizeof(spaces) - 1; + + while (indent > nspaces) { + if (BIO_write(out, spaces, nspaces) != nspaces) + return 0; + indent -= nspaces; + } + if (BIO_write(out, spaces, indent) != indent) + return 0; + if (pctx->flags & ASN1_PCTX_FLAGS_NO_STRUCT_NAME) + sname = NULL; + if (pctx->flags & ASN1_PCTX_FLAGS_NO_FIELD_NAME) + fname = NULL; + if (!sname && !fname) + return 1; + if (fname) { + if (BIO_puts(out, fname) <= 0) + return 0; + } + if (sname) { + if (fname) { + if (BIO_printf(out, " (%s)", sname) <= 0) + return 0; + } else { + if (BIO_puts(out, sname) <= 0) + return 0; + } + } + if (BIO_write(out, ": ", 2) != 2) + return 0; + return 1; +} + +static int asn1_print_boolean(BIO *out, int boolval) +{ + const char *str; + switch (boolval) { + case -1: + str = "BOOL ABSENT"; + break; + + case 0: + str = "FALSE"; + break; + + default: + str = "TRUE"; + break; + + } + + if (BIO_puts(out, str) <= 0) + return 0; + return 1; + +} + +static int asn1_print_integer(BIO *out, const ASN1_INTEGER *str) +{ + char *s; + int ret = 1; + s = i2s_ASN1_INTEGER(NULL, str); + if (s == NULL) + return 0; + if (BIO_puts(out, s) <= 0) + ret = 0; + OPENSSL_free(s); + return ret; +} + +static int asn1_print_oid(BIO *out, const ASN1_OBJECT *oid) +{ + char objbuf[80]; + const char *ln; + ln = OBJ_nid2ln(OBJ_obj2nid(oid)); + if (!ln) + ln = ""; + OBJ_obj2txt(objbuf, sizeof(objbuf), oid, 1); + if (BIO_printf(out, "%s (%s)", ln, objbuf) <= 0) + return 0; + return 1; +} + +static int asn1_print_obstring(BIO *out, const ASN1_STRING *str, int indent) +{ + if (str->type == V_ASN1_BIT_STRING) { + if (BIO_printf(out, " (%ld unused bits)\n", str->flags & 0x7) <= 0) + return 0; + } else if (BIO_puts(out, "\n") <= 0) + return 0; + if ((str->length > 0) + && BIO_dump_indent(out, (const char *)str->data, str->length, + indent + 2) <= 0) + return 0; + return 1; +} + +static int asn1_primitive_print(BIO *out, ASN1_VALUE **fld, + const ASN1_ITEM *it, int indent, + const char *fname, const char *sname, + const ASN1_PCTX *pctx) +{ + long utype; + ASN1_STRING *str; + int ret = 1, needlf = 1; + const char *pname; + const ASN1_PRIMITIVE_FUNCS *pf; + pf = it->funcs; + if (!asn1_print_fsname(out, indent, fname, sname, pctx)) + return 0; + if (pf && pf->prim_print) + return pf->prim_print(out, fld, it, indent, pctx); + if (it->itype == ASN1_ITYPE_MSTRING) { + str = (ASN1_STRING *)*fld; + utype = str->type & ~V_ASN1_NEG; + } else { + utype = it->utype; + if (utype == V_ASN1_BOOLEAN) + str = NULL; + else + str = (ASN1_STRING *)*fld; + } + if (utype == V_ASN1_ANY) { + ASN1_TYPE *atype = (ASN1_TYPE *)*fld; + utype = atype->type; + fld = &atype->value.asn1_value; + str = (ASN1_STRING *)*fld; + if (pctx->flags & ASN1_PCTX_FLAGS_NO_ANY_TYPE) + pname = NULL; + else + pname = ASN1_tag2str(utype); + } else { + if (pctx->flags & ASN1_PCTX_FLAGS_SHOW_TYPE) + pname = ASN1_tag2str(utype); + else + pname = NULL; + } + + if (utype == V_ASN1_NULL) { + if (BIO_puts(out, "NULL\n") <= 0) + return 0; + return 1; + } + + if (pname) { + if (BIO_puts(out, pname) <= 0) + return 0; + if (BIO_puts(out, ":") <= 0) + return 0; + } + + switch (utype) { + case V_ASN1_BOOLEAN: + { + int boolval = *(int *)fld; + if (boolval == -1) + boolval = it->size; + ret = asn1_print_boolean(out, boolval); + } + break; + + case V_ASN1_INTEGER: + case V_ASN1_ENUMERATED: + ret = asn1_print_integer(out, str); + break; + + case V_ASN1_UTCTIME: + ret = ASN1_UTCTIME_print(out, str); + break; + + case V_ASN1_GENERALIZEDTIME: + ret = ASN1_GENERALIZEDTIME_print(out, str); + break; + + case V_ASN1_OBJECT: + ret = asn1_print_oid(out, (const ASN1_OBJECT *)*fld); + break; + + case V_ASN1_OCTET_STRING: + case V_ASN1_BIT_STRING: + ret = asn1_print_obstring(out, str, indent); + needlf = 0; + break; + + case V_ASN1_SEQUENCE: + case V_ASN1_SET: + case V_ASN1_OTHER: + if (BIO_puts(out, "\n") <= 0) + return 0; + if (ASN1_parse_dump(out, str->data, str->length, indent, 0) <= 0) + ret = 0; + needlf = 0; + break; + + default: + ret = ASN1_STRING_print_ex(out, str, pctx->str_flags); + + } + if (!ret) + return 0; + if (needlf && BIO_puts(out, "\n") <= 0) + return 0; + return 1; +} |