From 6ef719bf92f6a6b9cdbd35d6b9c6e9d4d4f0dde5 Mon Sep 17 00:00:00 2001 From: Günther Deschner Date: Tue, 18 Nov 2008 09:52:35 +0100 Subject: s3-libnet-samsync: store samsync sequence number state in keytab. Guenther --- source3/libnet/libnet_samsync_keytab.c | 53 +++++++++++++++++++++++++++++++++- 1 file changed, 52 insertions(+), 1 deletion(-) (limited to 'source3/libnet/libnet_samsync_keytab.c') diff --git a/source3/libnet/libnet_samsync_keytab.c b/source3/libnet/libnet_samsync_keytab.c index 7bafad9b0b..cdb344604d 100644 --- a/source3/libnet/libnet_samsync_keytab.c +++ b/source3/libnet/libnet_samsync_keytab.c @@ -112,6 +112,9 @@ static NTSTATUS init_keytab(TALLOC_CTX *mem_ctx, krb5_error_code ret = 0; NTSTATUS status; struct libnet_keytab_context *keytab_ctx; + struct libnet_keytab_entry *entry; + uint64_t old_sequence_num = 0; + const char *principal = NULL; ret = libnet_keytab_init(mem_ctx, ctx->output_filename, &keytab_ctx); if (ret) { @@ -131,6 +134,20 @@ static NTSTATUS init_keytab(TALLOC_CTX *mem_ctx, return status; } + principal = talloc_asprintf(mem_ctx, "SEQUENCE_NUM@%s", + keytab_ctx->dns_domain_name); + NT_STATUS_HAVE_NO_MEMORY(principal); + + entry = libnet_keytab_search(keytab_ctx, principal, 0, ENCTYPE_NULL, + mem_ctx); + if (entry && (entry->password.length == 8)) { + old_sequence_num = BVAL(entry->password.data, 0); + } + + if (sequence_num) { + *sequence_num = old_sequence_num; + } + return status; } @@ -194,6 +211,37 @@ static NTSTATUS close_keytab(TALLOC_CTX *mem_ctx, (struct libnet_keytab_context *)ctx->private_data; krb5_error_code ret; NTSTATUS status; + struct libnet_keytab_entry *entry; + uint64_t old_sequence_num = 0; + const char *principal = NULL; + + principal = talloc_asprintf(mem_ctx, "SEQUENCE_NUM@%s", + keytab_ctx->dns_domain_name); + NT_STATUS_HAVE_NO_MEMORY(principal); + + + entry = libnet_keytab_search(keytab_ctx, principal, 0, ENCTYPE_NULL, + mem_ctx); + if (entry && (entry->password.length == 8)) { + old_sequence_num = BVAL(entry->password.data, 0); + } + + + if (sequence_num > old_sequence_num) { + DATA_BLOB blob; + blob = data_blob_talloc_zero(mem_ctx, 8); + SBVAL(blob.data, 0, sequence_num); + + status = libnet_keytab_add_to_keytab_entries(mem_ctx, keytab_ctx, + 0, + "SEQUENCE_NUM", + NULL, + ENCTYPE_NULL, + blob); + if (!NT_STATUS_IS_OK(status)) { + goto done; + } + } ret = libnet_keytab_add(keytab_ctx); if (ret) { @@ -210,9 +258,12 @@ static NTSTATUS close_keytab(TALLOC_CTX *mem_ctx, keytab_ctx->count, keytab_ctx->keytab_name); + status = NT_STATUS_OK; + + done: TALLOC_FREE(keytab_ctx); - return NT_STATUS_OK; + return status; } #else -- cgit