From 10f03e712b3e3e210e26aa1f79f806d26e4661c9 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?G=C3=BCnther=20Deschner?= Date: Fri, 11 Mar 2016 23:14:13 +0100 Subject: [PATCH 01/10] Partly revert "s3:libads: setup the msDS-SupportedEncryptionTypes attribute on ldap_add" MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This partly reverts commit 0c74d62524db376b6a3fac00c688be0cdffcaa80. BUG: https://bugzilla.samba.org/show_bug.cgi?id=11755 Signed-off-by: Günther Deschner Reviewed-by: Stefan Metzmacher (cherry picked from commit 6686f67d2a91146c8bb2fb2a8104fcaa5710b855) --- source3/libnet/libnet_join.c | 46 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 46 insertions(+) diff --git a/source3/libnet/libnet_join.c b/source3/libnet/libnet_join.c index 6dce03c..4212c54 100644 --- a/source3/libnet/libnet_join.c +++ b/source3/libnet/libnet_join.c @@ -615,6 +615,52 @@ static ADS_STATUS libnet_join_set_os_attributes(TALLOC_CTX *mem_ctx, /**************************************************************** ****************************************************************/ +#if 0 +static ADS_STATUS libnet_join_set_etypes(TALLOC_CTX *mem_ctx, + struct libnet_JoinCtx *r) +{ + ADS_STATUS status; + ADS_MODLIST mods; + uint32_t etype_list = ENC_CRC32 | ENC_RSA_MD5 | ENC_RC4_HMAC_MD5; + const char *etype_list_str; + +#ifdef HAVE_ENCTYPE_AES128_CTS_HMAC_SHA1_96 + etype_list |= ENC_HMAC_SHA1_96_AES128; +#endif +#ifdef HAVE_ENCTYPE_AES256_CTS_HMAC_SHA1_96 + etype_list |= ENC_HMAC_SHA1_96_AES256; +#endif + + etype_list_str = talloc_asprintf(mem_ctx, "%d", etype_list); + if (!etype_list_str) { + return ADS_ERROR(LDAP_NO_MEMORY); + } + + /* Find our DN */ + + status = libnet_join_find_machine_acct(mem_ctx, r); + if (!ADS_ERR_OK(status)) { + return status; + } + + /* now do the mods */ + + mods = ads_init_mods(mem_ctx); + if (!mods) { + return ADS_ERROR(LDAP_NO_MEMORY); + } + + status = ads_mod_str(mem_ctx, &mods, "msDS-SupportedEncryptionTypes", + etype_list_str); + if (!ADS_ERR_OK(status)) { + return status; + } + + return ads_gen_mod(r->in.ads, r->out.dn, mods); +} +#endif +/**************************************************************** +****************************************************************/ static bool libnet_join_create_keytab(TALLOC_CTX *mem_ctx, struct libnet_JoinCtx *r) -- 1.9.1 From 8ed4696e3f4d439f15b6635a05ecaa28b9e47736 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?G=C3=BCnther=20Deschner?= Date: Wed, 2 Mar 2016 18:07:53 +0100 Subject: [PATCH 02/10] s3:libnet:libnet_join: prepare to allow connecting with machine creds. BUG: https://bugzilla.samba.org/show_bug.cgi?id=11755 Guenther Signed-off-by: Guenther Deschner Reviewed-by: Stefan Metzmacher (cherry picked from commit 71d5634ab58f0ca21db633990231bd01a22c956c) --- source3/libnet/libnet_join.c | 73 +++++++++++++++++++++++++++++++++++++++++--- 1 file changed, 68 insertions(+), 5 deletions(-) diff --git a/source3/libnet/libnet_join.c b/source3/libnet/libnet_join.c index 4212c54..61358b7 100644 --- a/source3/libnet/libnet_join.c +++ b/source3/libnet/libnet_join.c @@ -42,6 +42,7 @@ #include "lib/param/loadparm.h" #include "libcli/auth/netlogon_creds_cli.h" #include "auth/credentials/credentials.h" +#include "krb5_env.h" /**************************************************************** ****************************************************************/ @@ -118,6 +119,7 @@ static ADS_STATUS libnet_connect_ads(const char *dns_domain_name, const char *dc_name, const char *user_name, const char *password, + const char *ccname, ADS_STRUCT **ads) { ADS_STATUS status; @@ -150,6 +152,12 @@ static ADS_STATUS libnet_connect_ads(const char *dns_domain_name, my_ads->auth.password = SMB_STRDUP(password); } + if (ccname != NULL) { + SAFE_FREE(my_ads->auth.ccache_name); + my_ads->auth.ccache_name = SMB_STRDUP(ccname); + setenv(KRB5_ENV_CCNAME, my_ads->auth.ccache_name, 1); + } + status = ads_connect_user_creds(my_ads); if (!ADS_ERR_OK(status)) { ads_destroy(&my_ads); @@ -164,15 +172,51 @@ static ADS_STATUS libnet_connect_ads(const char *dns_domain_name, ****************************************************************/ static ADS_STATUS libnet_join_connect_ads(TALLOC_CTX *mem_ctx, - struct libnet_JoinCtx *r) + struct libnet_JoinCtx *r, + bool use_machine_creds) { ADS_STATUS status; + const char *username; + const char *password; + const char *ccname = NULL; + + if (use_machine_creds) { + if (r->in.machine_name == NULL || + r->in.machine_password == NULL) { + return ADS_ERROR_NT(NT_STATUS_INVALID_PARAMETER); + } + username = talloc_strdup(mem_ctx, r->in.machine_name); + if (username == NULL) { + return ADS_ERROR(LDAP_NO_MEMORY); + } + if (username[strlen(username)] != '$') { + username = talloc_asprintf(username, "%s$", username); + if (username == NULL) { + return ADS_ERROR(LDAP_NO_MEMORY); + } + } + password = r->in.machine_password; + ccname = "MEMORY:libnet_join_machine_creds"; + } else { + username = r->in.admin_account; + password = r->in.admin_password; + + /* + * when r->in.use_kerberos is set to allow "net ads join -k" we + * may not override the provided credential cache - gd + */ + + if (!r->in.use_kerberos) { + ccname = "MEMORY:libnet_join_user_creds"; + } + } status = libnet_connect_ads(r->out.dns_domain_name, r->out.netbios_domain_name, r->in.dc_name, - r->in.admin_account, - r->in.admin_password, + username, + password, + ccname, &r->in.ads); if (!ADS_ERR_OK(status)) { libnet_join_set_error_string(mem_ctx, r, @@ -201,6 +245,24 @@ static ADS_STATUS libnet_join_connect_ads(TALLOC_CTX *mem_ctx, /**************************************************************** ****************************************************************/ +static ADS_STATUS libnet_join_connect_ads_user(TALLOC_CTX *mem_ctx, + struct libnet_JoinCtx *r) +{ + return libnet_join_connect_ads(mem_ctx, r, false); +} + +/**************************************************************** +****************************************************************/ +#if 0 +static ADS_STATUS libnet_join_connect_ads_machine(TALLOC_CTX *mem_ctx, + struct libnet_JoinCtx *r) +{ + return libnet_join_connect_ads(mem_ctx, r, true); +} +#endif +/**************************************************************** +****************************************************************/ + static ADS_STATUS libnet_unjoin_connect_ads(TALLOC_CTX *mem_ctx, struct libnet_UnjoinCtx *r) { @@ -211,6 +273,7 @@ static ADS_STATUS libnet_unjoin_connect_ads(TALLOC_CTX *mem_ctx, r->in.dc_name, r->in.admin_account, r->in.admin_password, + NULL, &r->in.ads); if (!ADS_ERR_OK(status)) { libnet_unjoin_set_error_string(mem_ctx, r, @@ -738,7 +801,7 @@ static ADS_STATUS libnet_join_post_processing_ads(TALLOC_CTX *mem_ctx, ADS_STATUS status; if (!r->in.ads) { - status = libnet_join_connect_ads(mem_ctx, r); + status = libnet_join_connect_ads_user(mem_ctx, r); if (!ADS_ERR_OK(status)) { return status; } @@ -2259,7 +2322,7 @@ static WERROR libnet_DomainJoin(TALLOC_CTX *mem_ctx, if (r->out.domain_is_ad && r->in.account_ou && !(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_UNSECURE)) { - ads_status = libnet_join_connect_ads(mem_ctx, r); + ads_status = libnet_join_connect_ads_user(mem_ctx, r); if (!ADS_ERR_OK(ads_status)) { return WERR_DEFAULT_JOIN_REQUIRED; } -- 1.9.1 From 867abf3bf182705c3e718ae2d46facbe7e30b11d Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?G=C3=BCnther=20Deschner?= Date: Fri, 4 Mar 2016 17:42:05 +0100 Subject: [PATCH 03/10] s3:libads:ldap: print LDAP error message with log level 10. Guenther BUG: https://bugzilla.samba.org/show_bug.cgi?id=11755 Signed-off-by: Guenther Deschner Reviewed-by: Stefan Metzmacher (cherry picked from commit 34030b025b9e4cd5e7321d6e242f6c03da2a60c0) --- source3/libads/ldap.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/source3/libads/ldap.c b/source3/libads/ldap.c index 8b9ab26..5896e6d 100644 --- a/source3/libads/ldap.c +++ b/source3/libads/ldap.c @@ -1628,6 +1628,17 @@ static ADS_STATUS ads_mod_ber(TALLOC_CTX *ctx, ADS_MODLIST *mods, } #endif +static void ads_print_error(int ret, LDAP *ld) +{ + if (ret != 0) { + char *ld_error = NULL; + ldap_get_option(ld, LDAP_OPT_ERROR_STRING, &ld_error); + DEBUG(10,("AD LDAP failure %d (%s):\n%s\n", ret, + ldap_err2string(ret), ld_error)); + SAFE_FREE(ld_error); + } +} + /** * Perform an ldap modify * @param ads connection to ads server @@ -1663,6 +1674,7 @@ ADS_STATUS ads_gen_mod(ADS_STRUCT *ads, const char *mod_dn, ADS_MODLIST mods) mods[i] = NULL; ret = ldap_modify_ext_s(ads->ldap.ld, utf8_dn, (LDAPMod **) mods, controls, NULL); + ads_print_error(ret, ads->ldap.ld); TALLOC_FREE(utf8_dn); return ADS_ERROR(ret); } @@ -1691,6 +1703,7 @@ ADS_STATUS ads_gen_add(ADS_STRUCT *ads, const char *new_dn, ADS_MODLIST mods) mods[i] = NULL; ret = ldap_add_s(ads->ldap.ld, utf8_dn, (LDAPMod**)mods); + ads_print_error(ret, ads->ldap.ld); TALLOC_FREE(utf8_dn); return ADS_ERROR(ret); } @@ -1712,6 +1725,7 @@ ADS_STATUS ads_del_dn(ADS_STRUCT *ads, char *del_dn) } ret = ldap_delete_s(ads->ldap.ld, utf8_dn); + ads_print_error(ret, ads->ldap.ld); TALLOC_FREE(utf8_dn); return ADS_ERROR(ret); } -- 1.9.1 From 4b4817792fd0025027d2e4df1b943769d0b4b601 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?G=C3=BCnther=20Deschner?= Date: Fri, 11 Mar 2016 12:13:24 +0100 Subject: [PATCH 04/10] s3:libads:ndr: add ADS_AUTH_USER_CREDS to ndr_print_ads_auth_flags() Guenther BUG: https://bugzilla.samba.org/show_bug.cgi?id=11755 Signed-off-by: Guenther Deschner Reviewed-by: Stefan Metzmacher (cherry picked from commit e8f6acdeece990dc8953d494113dee856d80da45) --- source3/libads/ndr.c | 1 + 1 file changed, 1 insertion(+) diff --git a/source3/libads/ndr.c b/source3/libads/ndr.c index fd0b63e..ac0b9e6 100644 --- a/source3/libads/ndr.c +++ b/source3/libads/ndr.c @@ -37,6 +37,7 @@ static void ndr_print_ads_auth_flags(struct ndr_print *ndr, const char *name, ui ndr_print_bitmap_flag(ndr, sizeof(uint32_t), "ADS_AUTH_SASL_SIGN", ADS_AUTH_SASL_SIGN, r); ndr_print_bitmap_flag(ndr, sizeof(uint32_t), "ADS_AUTH_SASL_SEAL", ADS_AUTH_SASL_SEAL, r); ndr_print_bitmap_flag(ndr, sizeof(uint32_t), "ADS_AUTH_SASL_FORCE", ADS_AUTH_SASL_FORCE, r); + ndr_print_bitmap_flag(ndr, sizeof(uint32_t), "ADS_AUTH_USER_CREDS", ADS_AUTH_USER_CREDS, r); ndr->depth--; } -- 1.9.1 From 4224a712d382bcf26cc54d57f96379b60da84994 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?G=C3=BCnther=20Deschner?= Date: Fri, 11 Mar 2016 12:15:14 +0100 Subject: [PATCH 05/10] s3:libads:ldap: fix ads_check_ou_dn to deal with account_ou not being initialized Guenther BUG: https://bugzilla.samba.org/show_bug.cgi?id=11755 Signed-off-by: Guenther Deschner Reviewed-by: Stefan Metzmacher (cherry picked from commit c61b111e6fa3e138d4d9cf5038b69644248e834a) --- source3/libads/ldap.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) diff --git a/source3/libads/ldap.c b/source3/libads/ldap.c index 5896e6d..d9ad9a9 100644 --- a/source3/libads/ldap.c +++ b/source3/libads/ldap.c @@ -4077,10 +4077,16 @@ ADS_STATUS ads_check_ou_dn(TALLOC_CTX *mem_ctx, const char *name; char *ou_string; - exploded_dn = ldap_explode_dn(*account_ou, 0); - if (exploded_dn) { - ldap_value_free(exploded_dn); - return ADS_SUCCESS; + if (account_ou == NULL) { + return ADS_ERROR_NT(NT_STATUS_INVALID_PARAMETER); + } + + if (*account_ou != NULL) { + exploded_dn = ldap_explode_dn(*account_ou, 0); + if (exploded_dn) { + ldap_value_free(exploded_dn); + return ADS_SUCCESS; + } } ou_string = ads_ou_string(ads, *account_ou); -- 1.9.1 From ba437fef8e0acc0437e7756a8ad8b2d2fb822e0c Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?G=C3=BCnther=20Deschner?= Date: Thu, 10 Mar 2016 18:03:47 +0100 Subject: [PATCH 06/10] s3:libnet:libnet_join: always try to create machineaccount via LDAP first. Guenther BUG: https://bugzilla.samba.org/show_bug.cgi?id=11755 Signed-off-by: Guenther Deschner Reviewed-by: Stefan Metzmacher (cherry picked from commit df8f79cc9d44ad7b2caa6b86b7ebde7bb1fd4c8c) --- source3/libnet/libnet_join.c | 28 +++++++++++++++++++++++++--- 1 file changed, 25 insertions(+), 3 deletions(-) diff --git a/source3/libnet/libnet_join.c b/source3/libnet/libnet_join.c index 61358b7..19b91d4 100644 --- a/source3/libnet/libnet_join.c +++ b/source3/libnet/libnet_join.c @@ -2319,16 +2319,36 @@ static WERROR libnet_DomainJoin(TALLOC_CTX *mem_ctx, r->out.dns_domain_name, r->out.netbios_domain_name, NULL, smbXcli_conn_remote_sockaddr(cli->conn)); - if (r->out.domain_is_ad && r->in.account_ou && + if (r->out.domain_is_ad && !(r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_UNSECURE)) { + const char *initial_account_ou = r->in.account_ou; + + /* + * we want to create the msDS-SupportedEncryptionTypes attribute + * as early as possible so always try an LDAP create as the user + * first. We copy r->in.account_ou because it may be changed + * during the machine pre-creation. + */ + ads_status = libnet_join_connect_ads_user(mem_ctx, r); if (!ADS_ERR_OK(ads_status)) { return WERR_DEFAULT_JOIN_REQUIRED; } ads_status = libnet_join_precreate_machine_acct(mem_ctx, r); - if (!ADS_ERR_OK(ads_status)) { + if (ADS_ERR_OK(ads_status)) { + + /* + * LDAP object create succeeded, now go to the rpc + * password set routines + */ + + r->in.join_flags &= ~WKSSVC_JOIN_FLAGS_ACCOUNT_CREATE; + goto rpc_join; + } + + if (initial_account_ou != NULL) { libnet_join_set_error_string(mem_ctx, r, "failed to precreate account in ou %s: %s", r->in.account_ou, @@ -2336,10 +2356,12 @@ static WERROR libnet_DomainJoin(TALLOC_CTX *mem_ctx, return WERR_DEFAULT_JOIN_REQUIRED; } - r->in.join_flags &= ~WKSSVC_JOIN_FLAGS_ACCOUNT_CREATE; + DEBUG(5, ("failed to precreate account in ou %s: %s", + r->in.account_ou, ads_errstr(ads_status))); } #endif /* HAVE_ADS */ + rpc_join: if ((r->in.join_flags & WKSSVC_JOIN_FLAGS_JOIN_UNSECURE) && (r->in.join_flags & WKSSVC_JOIN_FLAGS_MACHINE_PWD_PASSED)) { status = libnet_join_joindomain_rpc_unsecure(mem_ctx, r, cli); -- 1.9.1 From a241736303e07776f74bdbbe33e602f000608ce2 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?G=C3=BCnther=20Deschner?= Date: Fri, 11 Mar 2016 16:02:27 +0100 Subject: [PATCH 07/10] s3:librpc:idl:libnet_join: add encryption types to libnet_JoinCtx. Guenther BUG: https://bugzilla.samba.org/show_bug.cgi?id=11755 Signed-off-by: Guenther Deschner Reviewed-by: Stefan Metzmacher (cherry picked from commit 4a49f6fac9d6c77d1eedf914308e67eb6e2baa8d) --- source3/librpc/idl/libnet_join.idl | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/source3/librpc/idl/libnet_join.idl b/source3/librpc/idl/libnet_join.idl index 61c117e..63ea1df 100644 --- a/source3/librpc/idl/libnet_join.idl +++ b/source3/librpc/idl/libnet_join.idl @@ -43,6 +43,7 @@ interface libnetjoin [in] boolean8 use_kerberos, [in] netr_SchannelType secure_channel_type, [in,noprint] messaging_context *msg_ctx, + [in] uint32 desired_encryption_types, [out] string account_name, [out] string netbios_domain_name, [out] string dns_domain_name, @@ -51,7 +52,8 @@ interface libnetjoin [out] dom_sid *domain_sid, [out] boolean8 modified_config, [out] string error_string, - [out] boolean8 domain_is_ad + [out] boolean8 domain_is_ad, + [out] uint32 set_encryption_types ); [nopush,nopull,noopnum] WERROR libnet_UnjoinCtx( -- 1.9.1 From 6232dcaaa97db7a4a42f3c72c684589d4ec52ecc Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?G=C3=BCnther=20Deschner?= Date: Fri, 11 Mar 2016 16:04:52 +0100 Subject: [PATCH 08/10] s3:libnet:libnet_join: define list of desired encryption types only once. Guenther BUG: https://bugzilla.samba.org/show_bug.cgi?id=11755 Signed-off-by: Guenther Deschner Reviewed-by: Stefan Metzmacher (cherry picked from commit e0da059b39f9dd5ccb74f32f965e1ced384c77eb) --- source3/libads/ads_proto.h | 6 ++++-- source3/libads/ldap.c | 14 ++++---------- source3/libnet/libnet_join.c | 24 ++++++++++++++---------- 3 files changed, 22 insertions(+), 22 deletions(-) diff --git a/source3/libads/ads_proto.h b/source3/libads/ads_proto.h index 224d992..eb0dea9 100644 --- a/source3/libads/ads_proto.h +++ b/source3/libads/ads_proto.h @@ -98,8 +98,10 @@ ADS_STATUS ads_get_service_principal_names(TALLOC_CTX *mem_ctx, ADS_STATUS ads_clear_service_principal_names(ADS_STRUCT *ads, const char *machine_name); ADS_STATUS ads_add_service_principal_name(ADS_STRUCT *ads, const char *machine_name, const char *my_fqdn, const char *spn); -ADS_STATUS ads_create_machine_acct(ADS_STRUCT *ads, const char *machine_name, - const char *org_unit); +ADS_STATUS ads_create_machine_acct(ADS_STRUCT *ads, + const char *machine_name, + const char *org_unit, + uint32_t etype_list); ADS_STATUS ads_move_machine_acct(ADS_STRUCT *ads, const char *machine_name, const char *org_unit, bool *moved); int ads_count_replies(ADS_STRUCT *ads, void *res); diff --git a/source3/libads/ldap.c b/source3/libads/ldap.c index d9ad9a9..e9dee66 100644 --- a/source3/libads/ldap.c +++ b/source3/libads/ldap.c @@ -2211,8 +2211,10 @@ ADS_STATUS ads_add_service_principal_name(ADS_STRUCT *ads, const char *machine_n * @return 0 upon success, or non-zero otherwise **/ -ADS_STATUS ads_create_machine_acct(ADS_STRUCT *ads, const char *machine_name, - const char *org_unit) +ADS_STATUS ads_create_machine_acct(ADS_STRUCT *ads, + const char *machine_name, + const char *org_unit, + uint32_t etype_list) { ADS_STATUS ret; char *samAccountName, *controlstr; @@ -2268,16 +2270,8 @@ ADS_STATUS ads_create_machine_acct(ADS_STRUCT *ads, const char *machine_name, ads_mod_str(ctx, &mods, "userAccountControl", controlstr); if (func_level >= DS_DOMAIN_FUNCTION_2008) { - uint32_t etype_list = ENC_CRC32 | ENC_RSA_MD5 | ENC_RC4_HMAC_MD5; const char *etype_list_str; -#ifdef HAVE_ENCTYPE_AES128_CTS_HMAC_SHA1_96 - etype_list |= ENC_HMAC_SHA1_96_AES128; -#endif -#ifdef HAVE_ENCTYPE_AES256_CTS_HMAC_SHA1_96 - etype_list |= ENC_HMAC_SHA1_96_AES256; -#endif - etype_list_str = talloc_asprintf(ctx, "%d", (int)etype_list); if (etype_list_str == NULL) { goto done; diff --git a/source3/libnet/libnet_join.c b/source3/libnet/libnet_join.c index 19b91d4..6f7fbc5 100644 --- a/source3/libnet/libnet_join.c +++ b/source3/libnet/libnet_join.c @@ -318,7 +318,8 @@ static ADS_STATUS libnet_join_precreate_machine_acct(TALLOC_CTX *mem_ctx, status = ads_create_machine_acct(r->in.ads, r->in.machine_name, - r->in.account_ou); + r->in.account_ou, + r->in.desired_encryption_types); if (ADS_ERR_OK(status)) { DEBUG(1,("machine account creation created\n")); @@ -684,17 +685,10 @@ static ADS_STATUS libnet_join_set_etypes(TALLOC_CTX *mem_ctx, { ADS_STATUS status; ADS_MODLIST mods; - uint32_t etype_list = ENC_CRC32 | ENC_RSA_MD5 | ENC_RC4_HMAC_MD5; const char *etype_list_str; -#ifdef HAVE_ENCTYPE_AES128_CTS_HMAC_SHA1_96 - etype_list |= ENC_HMAC_SHA1_96_AES128; -#endif -#ifdef HAVE_ENCTYPE_AES256_CTS_HMAC_SHA1_96 - etype_list |= ENC_HMAC_SHA1_96_AES256; -#endif - - etype_list_str = talloc_asprintf(mem_ctx, "%d", etype_list); + etype_list_str = talloc_asprintf(mem_ctx, "%d", + r->in.desired_encryption_types); if (!etype_list_str) { return ADS_ERROR(LDAP_NO_MEMORY); } @@ -2135,6 +2129,16 @@ WERROR libnet_init_JoinCtx(TALLOC_CTX *mem_ctx, ctx->in.secure_channel_type = SEC_CHAN_WKSTA; + ctx->in.desired_encryption_types = ENC_CRC32 | + ENC_RSA_MD5 | + ENC_RC4_HMAC_MD5; +#ifdef HAVE_ENCTYPE_AES128_CTS_HMAC_SHA1_96 + ctx->in.desired_encryption_types |= ENC_HMAC_SHA1_96_AES128; +#endif +#ifdef HAVE_ENCTYPE_AES256_CTS_HMAC_SHA1_96 + ctx->in.desired_encryption_types |= ENC_HMAC_SHA1_96_AES256; +#endif + *r = ctx; return WERR_OK; -- 1.9.1 From 0d63b367cea35be9d8670be28bd1da29cf6650c3 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?G=C3=BCnther=20Deschner?= Date: Fri, 11 Mar 2016 16:05:53 +0100 Subject: [PATCH 09/10] s3:libnet:libnet_join: fill in output enctypes and only modify when necessary. Guenther BUG: https://bugzilla.samba.org/show_bug.cgi?id=11755 Signed-off-by: Guenther Deschner Reviewed-by: Stefan Metzmacher (cherry picked from commit 5d498d1b4d9b83f179fb7b2841a19ad984eec5f8) --- source3/libads/ldap.c | 2 +- source3/libnet/libnet_join.c | 18 +++++++++++++++++- 2 files changed, 18 insertions(+), 2 deletions(-) diff --git a/source3/libads/ldap.c b/source3/libads/ldap.c index e9dee66..159c6e3 100644 --- a/source3/libads/ldap.c +++ b/source3/libads/ldap.c @@ -1478,7 +1478,7 @@ char *ads_parent_dn(const char *dn) { ADS_STATUS status; char *expr; - const char *attrs[] = {"*", "nTSecurityDescriptor", NULL}; + const char *attrs[] = {"*", "msDS-SupportedEncryptionTypes", "nTSecurityDescriptor", NULL}; *res = NULL; diff --git a/source3/libnet/libnet_join.c b/source3/libnet/libnet_join.c index 6f7fbc5..5fcd2ec 100644 --- a/source3/libnet/libnet_join.c +++ b/source3/libnet/libnet_join.c @@ -417,6 +417,11 @@ static ADS_STATUS libnet_join_find_machine_acct(TALLOC_CTX *mem_ctx, goto done; } + if (!ads_pull_uint32(r->in.ads, res, "msDS-SupportedEncryptionTypes", + &r->out.set_encryption_types)) { + r->out.set_encryption_types = 0; + } + done: ads_msgfree(r->in.ads, res); TALLOC_FREE(dn); @@ -700,6 +705,10 @@ static ADS_STATUS libnet_join_set_etypes(TALLOC_CTX *mem_ctx, return status; } + if (r->in.desired_encryption_types == r->out.set_encryption_types) { + return ADS_SUCCESS; + } + /* now do the mods */ mods = ads_init_mods(mem_ctx); @@ -713,7 +722,14 @@ static ADS_STATUS libnet_join_set_etypes(TALLOC_CTX *mem_ctx, return status; } - return ads_gen_mod(r->in.ads, r->out.dn, mods); + status = ads_gen_mod(r->in.ads, r->out.dn, mods); + if (!ADS_ERR_OK(status)) { + return status; + } + + r->out.set_encryption_types = r->in.desired_encryption_types; + + return ADS_SUCCESS; } #endif /**************************************************************** -- 1.9.1 From 0eb9d1577eebc37fdada39e90edd47bffbc43711 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?G=C3=BCnther=20Deschner?= Date: Fri, 11 Mar 2016 23:15:06 +0100 Subject: [PATCH 10/10] s3:libnet:libnet_join: update msDS-SupportedEncryptionTypes (if required) with machine creds. Guenther BUG: https://bugzilla.samba.org/show_bug.cgi?id=11755 Pair-Programmed-With: Stefan Metzmacher Signed-off-by: Guenther Deschner Signed-off-by: Stefan Metzmacher Autobuild-User(master): Stefan Metzmacher Autobuild-Date(master): Mon Mar 14 19:38:48 CET 2016 on sn-devel-144 (cherry picked from commit 06aefe4b956ae8748e20ae4c730aa344e81808b6) --- source3/libnet/libnet_join.c | 59 +++++++++++++++++++++++++++++++++++++++++--- 1 file changed, 55 insertions(+), 4 deletions(-) diff --git a/source3/libnet/libnet_join.c b/source3/libnet/libnet_join.c index 5fcd2ec..6d19fa1 100644 --- a/source3/libnet/libnet_join.c +++ b/source3/libnet/libnet_join.c @@ -253,13 +253,13 @@ static ADS_STATUS libnet_join_connect_ads_user(TALLOC_CTX *mem_ctx, /**************************************************************** ****************************************************************/ -#if 0 + static ADS_STATUS libnet_join_connect_ads_machine(TALLOC_CTX *mem_ctx, struct libnet_JoinCtx *r) { return libnet_join_connect_ads(mem_ctx, r, true); } -#endif + /**************************************************************** ****************************************************************/ @@ -684,7 +684,7 @@ static ADS_STATUS libnet_join_set_os_attributes(TALLOC_CTX *mem_ctx, /**************************************************************** ****************************************************************/ -#if 0 + static ADS_STATUS libnet_join_set_etypes(TALLOC_CTX *mem_ctx, struct libnet_JoinCtx *r) { @@ -731,7 +731,7 @@ static ADS_STATUS libnet_join_set_etypes(TALLOC_CTX *mem_ctx, return ADS_SUCCESS; } -#endif + /**************************************************************** ****************************************************************/ @@ -809,6 +809,7 @@ static ADS_STATUS libnet_join_post_processing_ads(TALLOC_CTX *mem_ctx, struct libnet_JoinCtx *r) { ADS_STATUS status; + bool need_etype_update = false; if (!r->in.ads) { status = libnet_join_connect_ads_user(mem_ctx, r); @@ -843,6 +844,56 @@ static ADS_STATUS libnet_join_post_processing_ads(TALLOC_CTX *mem_ctx, return status; } + status = libnet_join_find_machine_acct(mem_ctx, r); + if (!ADS_ERR_OK(status)) { + return status; + } + + if (r->in.desired_encryption_types != r->out.set_encryption_types) { + uint32_t func_level = 0; + + status = ads_domain_func_level(r->in.ads, &func_level); + if (!ADS_ERR_OK(status)) { + libnet_join_set_error_string(mem_ctx, r, + "failed to query domain controller functional level: %s", + ads_errstr(status)); + return status; + } + + if (func_level >= DS_DOMAIN_FUNCTION_2008) { + need_etype_update = true; + } + } + + if (need_etype_update) { + /* + * We need to reconnect as machine account in order + * to update msDS-SupportedEncryptionTypes reliable + */ + + if (r->in.ads->auth.ccache_name != NULL) { + ads_kdestroy(r->in.ads->auth.ccache_name); + } + + ads_destroy(&r->in.ads); + + status = libnet_join_connect_ads_machine(mem_ctx, r); + if (!ADS_ERR_OK(status)) { + libnet_join_set_error_string(mem_ctx, r, + "Failed to connect as machine account: %s", + ads_errstr(status)); + return status; + } + + status = libnet_join_set_etypes(mem_ctx, r); + if (!ADS_ERR_OK(status)) { + libnet_join_set_error_string(mem_ctx, r, + "failed to set machine kerberos encryption types: %s", + ads_errstr(status)); + return status; + } + } + if (!libnet_join_derive_salting_principal(mem_ctx, r)) { return ADS_ERROR_NT(NT_STATUS_UNSUCCESSFUL); } -- 1.9.1