From 88ec1aead4c5414a7bbbb555370f2a9eab99acc4 Mon Sep 17 00:00:00 2001 From: Andrew Tridgell Date: Thu, 14 Aug 2008 15:27:22 +1000 Subject: cope with not knowing the kdc key (This used to be commit 7e48dad4c7724f3f11236171a777603574224c42) --- source4/torture/auth/pac.c | 97 ++++++++++++++++++++++++++-------------------- 1 file changed, 56 insertions(+), 41 deletions(-) (limited to 'source4/torture/auth/pac.c') diff --git a/source4/torture/auth/pac.c b/source4/torture/auth/pac.c index 7fdd7e58bf..4e51c66950 100644 --- a/source4/torture/auth/pac.c +++ b/source4/torture/auth/pac.c @@ -279,7 +279,7 @@ static bool torture_pac_saved_check(struct torture_context *tctx) struct auth_serversupplied_info *server_info_out; krb5_keyblock server_keyblock; - krb5_keyblock krbtgt_keyblock; + krb5_keyblock krbtgt_keyblock, *krbtgt_keyblock_p; struct samr_Password *krbtgt_bytes, *krbsrv_bytes; krb5_error_code ret; @@ -309,9 +309,13 @@ static bool torture_pac_saved_check(struct torture_context *tctx) /* The krbtgt key in use when the above PAC was generated. * This is an arcfour-hmac-md5 key, extracted with our 'net * samdump' tool. */ - krbtgt_bytes = smbpasswd_gethexpwd(mem_ctx, pac_kdc_key); - if (!krbtgt_bytes) { - torture_fail(tctx, "(saved test) Could not interpret krbtgt key"); + if (*pac_kdc_key == 0) { + krbtgt_bytes = NULL; + } else { + krbtgt_bytes = smbpasswd_gethexpwd(mem_ctx, pac_kdc_key); + if (!krbtgt_bytes) { + torture_fail(tctx, "(saved test) Could not interpret krbtgt key"); + } } krbsrv_bytes = smbpasswd_gethexpwd(mem_ctx, pac_member_key); @@ -329,18 +333,23 @@ static bool torture_pac_saved_check(struct torture_context *tctx) smb_get_krb5_error_message(smb_krb5_context->krb5_context, ret, mem_ctx))); - ret = krb5_keyblock_init(smb_krb5_context->krb5_context, - ENCTYPE_ARCFOUR_HMAC, - krbtgt_bytes->hash, sizeof(krbtgt_bytes->hash), - &krbtgt_keyblock); - if (ret) { - krb5_free_keyblock_contents(smb_krb5_context->krb5_context, - &server_keyblock); - torture_fail(tctx, - talloc_asprintf(tctx, - "(saved test) Server Keyblock encoding failed: %s", - smb_get_krb5_error_message(smb_krb5_context->krb5_context, - ret, mem_ctx))); + if (krbtgt_bytes) { + ret = krb5_keyblock_init(smb_krb5_context->krb5_context, + ENCTYPE_ARCFOUR_HMAC, + krbtgt_bytes->hash, sizeof(krbtgt_bytes->hash), + &krbtgt_keyblock); + if (ret) { + krb5_free_keyblock_contents(smb_krb5_context->krb5_context, + &server_keyblock); + torture_fail(tctx, + talloc_asprintf(tctx, + "(saved test) Server Keyblock encoding failed: %s", + smb_get_krb5_error_message(smb_krb5_context->krb5_context, + ret, mem_ctx))); + } + krbtgt_keyblock_p = &krbtgt_keyblock; + } else { + krbtgt_keyblock_p = NULL; } pac_file = torture_setting_string(tctx, "pac_file", NULL); @@ -363,7 +372,7 @@ static bool torture_pac_saved_check(struct torture_context *tctx) &client_principal); if (ret) { krb5_free_keyblock_contents(smb_krb5_context->krb5_context, - &krbtgt_keyblock); + krbtgt_keyblock_p); krb5_free_keyblock_contents(smb_krb5_context->krb5_context, &server_keyblock); torture_fail(tctx, @@ -379,12 +388,12 @@ static bool torture_pac_saved_check(struct torture_context *tctx) &pac_data, tmp_blob, smb_krb5_context->krb5_context, - &krbtgt_keyblock, + krbtgt_keyblock_p, &server_keyblock, client_principal, authtime, NULL); if (!NT_STATUS_IS_OK(nt_status)) { krb5_free_keyblock_contents(smb_krb5_context->krb5_context, - &krbtgt_keyblock); + krbtgt_keyblock_p); krb5_free_keyblock_contents(smb_krb5_context->krb5_context, &server_keyblock); krb5_free_principal(smb_krb5_context->krb5_context, client_principal); @@ -400,13 +409,13 @@ static bool torture_pac_saved_check(struct torture_context *tctx) &logon_info, tmp_blob, smb_krb5_context->krb5_context, - &krbtgt_keyblock, + krbtgt_keyblock_p, &server_keyblock, client_principal, authtime, NULL); if (!NT_STATUS_IS_OK(nt_status)) { krb5_free_keyblock_contents(smb_krb5_context->krb5_context, - &krbtgt_keyblock); + krbtgt_keyblock_p); krb5_free_keyblock_contents(smb_krb5_context->krb5_context, &server_keyblock); krb5_free_principal(smb_krb5_context->krb5_context, client_principal); @@ -424,7 +433,7 @@ static bool torture_pac_saved_check(struct torture_context *tctx) &server_info_out); if (!NT_STATUS_IS_OK(nt_status)) { krb5_free_keyblock_contents(smb_krb5_context->krb5_context, - &krbtgt_keyblock); + krbtgt_keyblock_p); krb5_free_keyblock_contents(smb_krb5_context->krb5_context, &server_keyblock); krb5_free_principal(smb_krb5_context->krb5_context, client_principal); @@ -440,7 +449,7 @@ static bool torture_pac_saved_check(struct torture_context *tctx) "S-1-5-21-3048156945-3961193616-3706469200-1005"), server_info_out->account_sid)) { krb5_free_keyblock_contents(smb_krb5_context->krb5_context, - &krbtgt_keyblock); + krbtgt_keyblock_p); krb5_free_keyblock_contents(smb_krb5_context->krb5_context, &server_keyblock); krb5_free_principal(smb_krb5_context->krb5_context, client_principal); @@ -452,17 +461,25 @@ static bool torture_pac_saved_check(struct torture_context *tctx) dom_sid_string(mem_ctx, server_info_out->account_sid))); } + if (krbtgt_bytes == NULL) { + torture_comment(tctx, "skipping PAC encoding tests as non kdc key\n"); + krb5_free_keyblock_contents(smb_krb5_context->krb5_context, + &server_keyblock); + krb5_free_principal(smb_krb5_context->krb5_context, client_principal); + return true; + } + ret = kerberos_encode_pac(mem_ctx, lp_iconv_convenience(tctx->lp_ctx), pac_data, smb_krb5_context->krb5_context, - &krbtgt_keyblock, + krbtgt_keyblock_p, &server_keyblock, &validate_blob); if (ret != 0) { krb5_free_keyblock_contents(smb_krb5_context->krb5_context, - &krbtgt_keyblock); + krbtgt_keyblock_p); krb5_free_keyblock_contents(smb_krb5_context->krb5_context, &server_keyblock); krb5_free_principal(smb_krb5_context->krb5_context, client_principal); @@ -478,7 +495,7 @@ static bool torture_pac_saved_check(struct torture_context *tctx) */ if (tmp_blob.length != validate_blob.length) { krb5_free_keyblock_contents(smb_krb5_context->krb5_context, - &krbtgt_keyblock); + krbtgt_keyblock_p); krb5_free_keyblock_contents(smb_krb5_context->krb5_context, &server_keyblock); krb5_free_principal(smb_krb5_context->krb5_context, client_principal); @@ -491,7 +508,7 @@ static bool torture_pac_saved_check(struct torture_context *tctx) if (memcmp(tmp_blob.data, validate_blob.data, tmp_blob.length) != 0) { krb5_free_keyblock_contents(smb_krb5_context->krb5_context, - &krbtgt_keyblock); + krbtgt_keyblock_p); krb5_free_keyblock_contents(smb_krb5_context->krb5_context, &server_keyblock); krb5_free_principal(smb_krb5_context->krb5_context, client_principal); @@ -508,14 +525,14 @@ static bool torture_pac_saved_check(struct torture_context *tctx) lp_iconv_convenience(tctx->lp_ctx), server_info_out, smb_krb5_context->krb5_context, - &krbtgt_keyblock, + krbtgt_keyblock_p, &server_keyblock, client_principal, authtime, &validate_blob); if (ret != 0) { krb5_free_keyblock_contents(smb_krb5_context->krb5_context, - &krbtgt_keyblock); + krbtgt_keyblock_p); krb5_free_keyblock_contents(smb_krb5_context->krb5_context, &server_keyblock); krb5_free_principal(smb_krb5_context->krb5_context, client_principal); @@ -541,7 +558,7 @@ static bool torture_pac_saved_check(struct torture_context *tctx) NDR_PRINT_DEBUG(PAC_DATA, &pac_data2); krb5_free_keyblock_contents(smb_krb5_context->krb5_context, - &krbtgt_keyblock); + krbtgt_keyblock_p); krb5_free_keyblock_contents(smb_krb5_context->krb5_context, &server_keyblock); krb5_free_principal(smb_krb5_context->krb5_context, client_principal); @@ -563,7 +580,7 @@ static bool torture_pac_saved_check(struct torture_context *tctx) NDR_PRINT_DEBUG(PAC_DATA, &pac_data2); krb5_free_keyblock_contents(smb_krb5_context->krb5_context, - &krbtgt_keyblock); + krbtgt_keyblock_p); krb5_free_keyblock_contents(smb_krb5_context->krb5_context, &server_keyblock); krb5_free_principal(smb_krb5_context->krb5_context, client_principal); @@ -583,14 +600,14 @@ static bool torture_pac_saved_check(struct torture_context *tctx) &pac_data, tmp_blob, smb_krb5_context->krb5_context, - &krbtgt_keyblock, + krbtgt_keyblock_p, &server_keyblock, client_principal, authtime + 1, NULL); if (NT_STATUS_IS_OK(nt_status)) { krb5_free_keyblock_contents(smb_krb5_context->krb5_context, - &krbtgt_keyblock); + krbtgt_keyblock_p); krb5_free_keyblock_contents(smb_krb5_context->krb5_context, &server_keyblock); krb5_free_principal(smb_krb5_context->krb5_context, client_principal); @@ -608,7 +625,7 @@ static bool torture_pac_saved_check(struct torture_context *tctx) if (ret) { krb5_free_keyblock_contents(smb_krb5_context->krb5_context, - &krbtgt_keyblock); + krbtgt_keyblock_p); krb5_free_keyblock_contents(smb_krb5_context->krb5_context, &server_keyblock); torture_fail(tctx, talloc_asprintf(tctx, @@ -621,13 +638,13 @@ static bool torture_pac_saved_check(struct torture_context *tctx) &pac_data, tmp_blob, smb_krb5_context->krb5_context, - &krbtgt_keyblock, + krbtgt_keyblock_p, &server_keyblock, client_principal, authtime, NULL); if (NT_STATUS_IS_OK(nt_status)) { krb5_free_keyblock_contents(smb_krb5_context->krb5_context, - &krbtgt_keyblock); + krbtgt_keyblock_p); krb5_free_keyblock_contents(smb_krb5_context->krb5_context, &server_keyblock); torture_fail(tctx, "(saved test) PAC decoding DID NOT fail on modified principal"); @@ -641,20 +658,20 @@ static bool torture_pac_saved_check(struct torture_context *tctx) &pac_data, tmp_blob, smb_krb5_context->krb5_context, - &krbtgt_keyblock, + krbtgt_keyblock_p, &server_keyblock, client_principal, authtime, NULL); if (NT_STATUS_IS_OK(nt_status)) { krb5_free_keyblock_contents(smb_krb5_context->krb5_context, - &krbtgt_keyblock); + krbtgt_keyblock_p); krb5_free_keyblock_contents(smb_krb5_context->krb5_context, &server_keyblock); torture_fail(tctx, "(saved test) PAC decoding DID NOT fail on broken checksum"); } krb5_free_keyblock_contents(smb_krb5_context->krb5_context, - &krbtgt_keyblock); + krbtgt_keyblock_p); krb5_free_keyblock_contents(smb_krb5_context->krb5_context, &server_keyblock); return true; @@ -666,9 +683,7 @@ struct torture_suite *torture_pac(TALLOC_CTX *mem_ctx) torture_suite_add_simple_test(suite, "self check", torture_pac_self_check); - torture_suite_add_simple_test(suite, "saved check", torture_pac_saved_check); - return suite; } -- cgit