diff options
| -rw-r--r-- | source3/libnet/libnet_keytab.c | 77 | ||||
| -rw-r--r-- | source3/libnet/libnet_proto.h | 4 |
2 files changed, 81 insertions, 0 deletions
diff --git a/source3/libnet/libnet_keytab.c b/source3/libnet/libnet_keytab.c index 02c2b6f761..cec39273e3 100644 --- a/source3/libnet/libnet_keytab.c +++ b/source3/libnet/libnet_keytab.c @@ -141,4 +141,81 @@ krb5_error_code libnet_keytab_add(struct libnet_keytab_context *ctx) #endif /* defined(ENCTYPE_ARCFOUR_HMAC) */ } +struct libnet_keytab_entry *libnet_keytab_search(struct libnet_keytab_context *ctx, + const char *principal, int kvno, + TALLOC_CTX *mem_ctx) +{ + krb5_error_code ret = 0; + krb5_kt_cursor cursor; + krb5_keytab_entry kt_entry; + struct libnet_keytab_entry *entry = NULL; + + ZERO_STRUCT(kt_entry); + ZERO_STRUCT(cursor); + + ret = krb5_kt_start_seq_get(ctx->context, ctx->keytab, &cursor); + if (ret) { + return NULL; + } + + while (krb5_kt_next_entry(ctx->context, ctx->keytab, &kt_entry, &cursor) == 0) { + char *princ_s = NULL; + + if (kt_entry.vno != kvno) { + smb_krb5_kt_free_entry(ctx->context, &kt_entry); + continue; + } + + ret = smb_krb5_unparse_name(ctx->context, kt_entry.principal, &princ_s); + if (ret) { + smb_krb5_kt_free_entry(ctx->context, &kt_entry); + continue; + } + + if (strcmp(principal, princ_s) != 0) { + smb_krb5_kt_free_entry(ctx->context, &kt_entry); + SAFE_FREE(princ_s); + continue; + } + + entry = talloc_zero(mem_ctx, struct libnet_keytab_entry); + if (!entry) { + smb_krb5_kt_free_entry(ctx->context, &kt_entry); + SAFE_FREE(princ_s); + break; + } + + entry->name = talloc_strdup(entry, princ_s); + if (!entry->name) { + smb_krb5_kt_free_entry(ctx->context, &kt_entry); + SAFE_FREE(princ_s); + TALLOC_FREE(entry); + break; + } + + entry->principal = talloc_strdup(entry, princ_s); + if (!entry->principal) { + smb_krb5_kt_free_entry(ctx->context, &kt_entry); + SAFE_FREE(princ_s); + TALLOC_FREE(entry); + break; + } + + entry->password = data_blob_talloc(entry, kt_entry.key.contents, kt_entry.key.length); + if (!entry->password.data) { + smb_krb5_kt_free_entry(ctx->context, &kt_entry); + SAFE_FREE(princ_s); + TALLOC_FREE(entry); + break; + } + + smb_krb5_kt_free_entry(ctx->context, &kt_entry); + SAFE_FREE(princ_s); + break; + } + + krb5_kt_end_seq_get(ctx->context, ctx->keytab, &cursor); + return entry; +} + #endif /* HAVE_KRB5 */ diff --git a/source3/libnet/libnet_proto.h b/source3/libnet/libnet_proto.h index ddd730b1a8..65d37b0ab8 100644 --- a/source3/libnet/libnet_proto.h +++ b/source3/libnet/libnet_proto.h @@ -50,6 +50,10 @@ krb5_error_code libnet_keytab_init(TALLOC_CTX *mem_ctx, const char *keytab_name, struct libnet_keytab_context **ctx); krb5_error_code libnet_keytab_add(struct libnet_keytab_context *ctx); + +struct libnet_keytab_entry *libnet_keytab_search(struct libnet_keytab_context *ctx, + const char *principal, int kvno, + TALLOC_CTX *mem_ctx); #endif /* The following definitions come from libnet/libnet_samsync.c */ |