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252 lines
8.3 KiB
252 lines
8.3 KiB
From 14d3e54fa87dc204223eba2c7e18b6e1bf0e4564 Mon Sep 17 00:00:00 2001
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From: Justin Stephenson <jstephen@redhat.com>
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Date: Thu, 3 Jan 2019 12:07:01 -0500
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Subject: [PATCH 1/5] s3:libsmb: Check disable_netbios in socket connect
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If the disable_netbios option is set then return NT_STATUS_NOT_SUPPORTED
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for a port 139 connection in the low level socket connection code.
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BUG: https://bugzilla.samba.org/show_bug.cgi?id=13727
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Signed-off-by: Justin Stephenson <jstephen@redhat.com>
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Reviewed-by: Noel Power <nopower@suse.com>
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Reviewed-by: Jeremy Allison <jra@samba.org>
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(cherry picked from commit 78f51a1d3c53248159c1e7643364b62e52457bb9)
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---
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source3/libsmb/smbsock_connect.c | 5 +++++
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1 file changed, 5 insertions(+)
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diff --git a/source3/libsmb/smbsock_connect.c b/source3/libsmb/smbsock_connect.c
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index 9f915e1bb42..bb3cb07646c 100644
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--- a/source3/libsmb/smbsock_connect.c
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+++ b/source3/libsmb/smbsock_connect.c
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@@ -376,6 +376,11 @@ struct tevent_req *smbsock_connect_send(TALLOC_CTX *mem_ctx,
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tevent_req_set_cleanup_fn(req, smbsock_connect_cleanup);
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if (port == NBT_SMB_PORT) {
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+ if (lp_disable_netbios()) {
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+ tevent_req_nterror(req, NT_STATUS_NOT_SUPPORTED);
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+ return tevent_req_post(req, ev);
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+ }
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+
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state->req_139 = nb_connect_send(state, state->ev, state->addr,
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state->called_name,
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state->called_type,
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--
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2.20.1
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From 94491362b882e49757f8ecd8e133149457e2f2e5 Mon Sep 17 00:00:00 2001
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From: Justin Stephenson <jstephen@redhat.com>
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Date: Mon, 17 Dec 2018 14:40:33 -0500
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Subject: [PATCH 2/5] s3:libsmb: Print debug message about Netbios
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With a preceding patch, cli_connect_nb() will return
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NT_STATUS_NOT_SUPPORTED when 'disable netbios' is set in smb.conf.
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Print an informative error message to indicate Netbios is disabled
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if this occurs.
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BUG: https://bugzilla.samba.org/show_bug.cgi?id=13727
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Signed-off-by: Justin Stephenson <jstephen@redhat.com>
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Reviewed-by: Noel Power <nopower@suse.com>
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Reviewed-by: Jeremy Allison <jra@samba.org>
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(cherry picked from commit 499f051c9d527a14f9712365f8403a1ee0662c5b)
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---
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source3/libsmb/clidfs.c | 10 +++++++---
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source3/libsmb/libsmb_server.c | 4 ++++
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2 files changed, 11 insertions(+), 3 deletions(-)
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diff --git a/source3/libsmb/clidfs.c b/source3/libsmb/clidfs.c
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index 0dfb8b33606..4342a3b1d1b 100644
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--- a/source3/libsmb/clidfs.c
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+++ b/source3/libsmb/clidfs.c
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@@ -196,9 +196,13 @@ static NTSTATUS do_connect(TALLOC_CTX *ctx,
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flags, &c);
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if (!NT_STATUS_IS_OK(status)) {
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- d_printf("Connection to %s failed (Error %s)\n",
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- server,
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- nt_errstr(status));
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+ if (NT_STATUS_EQUAL(status, NT_STATUS_NOT_SUPPORTED)) {
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+ DBG_ERR("NetBIOS support disabled, unable to connect");
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+ }
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+
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+ DBG_WARNING("Connection to %s failed (Error %s)\n",
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+ server,
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+ nt_errstr(status));
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return status;
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}
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diff --git a/source3/libsmb/libsmb_server.c b/source3/libsmb/libsmb_server.c
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index 67dfcf72327..0067df48cac 100644
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--- a/source3/libsmb/libsmb_server.c
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+++ b/source3/libsmb/libsmb_server.c
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@@ -489,6 +489,10 @@ SMBC_server_internal(TALLOC_CTX *ctx,
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}
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if (!NT_STATUS_IS_OK(status)) {
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+ if (NT_STATUS_EQUAL(status, NT_STATUS_NOT_SUPPORTED)) {
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+ DBG_ERR("NetBIOS support disabled, unable to connect");
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+ }
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+
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errno = map_errno_from_nt_status(status);
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return NULL;
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}
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--
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2.20.1
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From a0e7b2e45efe680971ded1b66ea919f3fa4a9ad4 Mon Sep 17 00:00:00 2001
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From: Justin Stephenson <jstephen@redhat.com>
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Date: Mon, 17 Dec 2018 14:57:59 -0500
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Subject: [PATCH 3/5] s3:smbpasswd: Print debug message about Netbios
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With a preceding patch, cli_connect_nb() will return
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NT_STATUS_NOT_SUPPORTED when 'disable netbios' is set in smb.conf.
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Print an informative error message to indicate Netbios is disabled
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if this occurs.
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BUG: https://bugzilla.samba.org/show_bug.cgi?id=13727
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Signed-off-by: Justin Stephenson <jstephen@redhat.com>
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Reviewed-by: Noel Power <nopower@suse.com>
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Reviewed-by: Jeremy Allison <jra@samba.org>
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(cherry picked from commit ecbb2f78cec6d9e6f5180c8ba274a1da2152f098)
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---
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source3/libsmb/passchange.c | 16 ++++++++++++----
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1 file changed, 12 insertions(+), 4 deletions(-)
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diff --git a/source3/libsmb/passchange.c b/source3/libsmb/passchange.c
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index 48ffba8036f..f60e3079975 100644
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--- a/source3/libsmb/passchange.c
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+++ b/source3/libsmb/passchange.c
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@@ -46,10 +46,18 @@ NTSTATUS remote_password_change(const char *remote_machine,
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result = cli_connect_nb(remote_machine, NULL, 0, 0x20, NULL,
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SMB_SIGNING_IPC_DEFAULT, 0, &cli);
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if (!NT_STATUS_IS_OK(result)) {
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- if (asprintf(err_str, "Unable to connect to SMB server on "
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- "machine %s. Error was : %s.\n",
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- remote_machine, nt_errstr(result))==-1) {
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- *err_str = NULL;
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+ if (NT_STATUS_EQUAL(result, NT_STATUS_NOT_SUPPORTED)) {
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+ if (asprintf(err_str, "Unable to connect to SMB server on "
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+ "machine %s. NetBIOS support disabled\n",
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+ remote_machine) == -1) {
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+ *err_str = NULL;
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+ }
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+ } else {
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+ if (asprintf(err_str, "Unable to connect to SMB server on "
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+ "machine %s. Error was : %s.\n",
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+ remote_machine, nt_errstr(result))==-1) {
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+ *err_str = NULL;
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+ }
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}
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return result;
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}
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--
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2.20.1
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From 5f5420b85b0467c0cb3237c82bd4c151bbb0133b Mon Sep 17 00:00:00 2001
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From: Justin Stephenson <jstephen@redhat.com>
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Date: Mon, 17 Dec 2018 15:17:24 -0500
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Subject: [PATCH 4/5] s3:utils:net: Print debug message about Netbios
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With a preceding patch, cli_connect_nb() will return
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NT_STATUS_NOT_SUPPORTED when 'disable netbios' is set in smb.conf.
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Print an informative error message to indicate Netbios is disabled
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if this occurs.
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BUG: https://bugzilla.samba.org/show_bug.cgi?id=13727
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Signed-off-by: Justin Stephenson <jstephen@redhat.com>
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Reviewed-by: Noel Power <nopower@suse.com>
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Reviewed-by: Jeremy Allison <jra@samba.org>
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(cherry picked from commit 08867de2efde05e4730b41a335d13f775e44e397)
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---
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source3/utils/net_rpc.c | 3 +++
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source3/utils/net_time.c | 9 +++++++--
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2 files changed, 10 insertions(+), 2 deletions(-)
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diff --git a/source3/utils/net_rpc.c b/source3/utils/net_rpc.c
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index 67fff2f4d1b..91ad90f9594 100644
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--- a/source3/utils/net_rpc.c
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+++ b/source3/utils/net_rpc.c
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@@ -7431,6 +7431,9 @@ bool net_rpc_check(struct net_context *c, unsigned flags)
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lp_netbios_name(), SMB_SIGNING_IPC_DEFAULT,
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0, &cli);
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if (!NT_STATUS_IS_OK(status)) {
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+ if (NT_STATUS_EQUAL(status, NT_STATUS_NOT_SUPPORTED)) {
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+ DBG_ERR("NetBIOS support disabled, unable to connect\n");
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+ }
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return false;
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}
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status = smbXcli_negprot(cli->conn, cli->timeout, PROTOCOL_CORE,
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diff --git a/source3/utils/net_time.c b/source3/utils/net_time.c
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index 0091fc86333..5e6cf2ea15d 100644
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--- a/source3/utils/net_time.c
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+++ b/source3/utils/net_time.c
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@@ -37,8 +37,13 @@ static time_t cli_servertime(const char *host,
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status = cli_connect_nb(host, dest_ss, 0, 0x20, lp_netbios_name(),
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SMB_SIGNING_DEFAULT, 0, &cli);
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if (!NT_STATUS_IS_OK(status)) {
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- fprintf(stderr, _("Can't contact server %s. Error %s\n"),
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- host, nt_errstr(status));
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+ if (NT_STATUS_EQUAL(status, NT_STATUS_NOT_SUPPORTED)) {
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+ fprintf(stderr, "Can't contact server %s. NetBIOS support disabled,"
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+ " Error %s\n", host, nt_errstr(status));
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+ } else {
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+ fprintf(stderr, "Can't contact server %s. Error %s\n",
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+ host, nt_errstr(status));
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+ }
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goto done;
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}
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--
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2.20.1
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From c948bd0660c1ddba0205ccdbd156baefa1c27971 Mon Sep 17 00:00:00 2001
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From: Justin Stephenson <jstephen@redhat.com>
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Date: Mon, 14 Jan 2019 10:36:47 -0500
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Subject: [PATCH 5/5] s3:libsmb: Honor disable_netbios option in
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smbsock_connect_send
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If disable_netbios is set, return before the tevent timer is triggered
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to prevent outgoing netbios connections.
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BUG: https://bugzilla.samba.org/show_bug.cgi?id=13727
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Signed-off-by: Justin Stephenson <jstephen@redhat.com>
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Reviewed-by: Andreas Schneider <asn@samba.org>
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Reviewed-by: Jeremy Allison <jra@samba.org>
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(cherry picked from commit c324f84a2fa25e29d2f7879fbcd35ce0e76a78f8)
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---
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source3/libsmb/smbsock_connect.c | 7 +++++++
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1 file changed, 7 insertions(+)
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diff --git a/source3/libsmb/smbsock_connect.c b/source3/libsmb/smbsock_connect.c
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index bb3cb07646c..be52b9a4f79 100644
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--- a/source3/libsmb/smbsock_connect.c
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+++ b/source3/libsmb/smbsock_connect.c
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@@ -415,6 +415,13 @@ struct tevent_req *smbsock_connect_send(TALLOC_CTX *mem_ctx,
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tevent_req_set_callback(state->req_445, smbsock_connect_connected,
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req);
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+ /*
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+ * Check for disable_netbios
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+ */
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+ if (lp_disable_netbios()) {
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+ return req;
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+ }
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+
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/*
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* After 5 msecs, fire the 139 (NBT) request
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*/
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--
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2.20.1
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