diff options
author | Stefan Metzmacher <metze@samba.org> | 2014-01-09 12:35:58 +0100 |
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committer | Günther Deschner <gd@samba.org> | 2015-07-03 02:00:28 +0200 |
commit | e1498ac674ed099394777e10065b34805bd24054 (patch) | |
tree | 47ab042bb311d72660dd038a7bbc4fcd9f5f2f90 /librpc/rpc | |
parent | 18dce19ef988d5398ba3f3ae59931b121dd85e3d (diff) | |
download | samba-e1498ac674ed099394777e10065b34805bd24054.tar.gz |
librpc/rpc: add dcerpc_[extract|construct]_bind_time_features()
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Guenther Deschner <gd@samba.org>
Diffstat (limited to 'librpc/rpc')
-rw-r--r-- | librpc/rpc/dcerpc_util.c | 63 | ||||
-rw-r--r-- | librpc/rpc/rpc_common.h | 30 |
2 files changed, 93 insertions, 0 deletions
diff --git a/librpc/rpc/dcerpc_util.c b/librpc/rpc/dcerpc_util.c index a4dd56986ae..696bcdae56e 100644 --- a/librpc/rpc/dcerpc_util.c +++ b/librpc/rpc/dcerpc_util.c @@ -652,3 +652,66 @@ bool dcerpc_sec_verification_trailer_check( return true; } + +static const struct ndr_syntax_id dcerpc_bind_time_features_prefix = { + .uuid = { + .time_low = 0x6cb71c2c, + .time_mid = 0x9812, + .time_hi_and_version = 0x4540, + .clock_seq = {0x00, 0x00}, + .node = {0x00,0x00,0x00,0x00,0x00,0x00} + }, + .if_version = 1, +}; + +bool dcerpc_extract_bind_time_features(struct ndr_syntax_id s, uint64_t *_features) +{ + uint8_t values[8]; + uint64_t features = 0; + + values[0] = s.uuid.clock_seq[0]; + values[1] = s.uuid.clock_seq[1]; + values[2] = s.uuid.node[0]; + values[3] = s.uuid.node[1]; + values[4] = s.uuid.node[2]; + values[5] = s.uuid.node[3]; + values[6] = s.uuid.node[4]; + values[7] = s.uuid.node[5]; + + ZERO_STRUCT(s.uuid.clock_seq); + ZERO_STRUCT(s.uuid.node); + + if (!ndr_syntax_id_equal(&s, &dcerpc_bind_time_features_prefix)) { + if (_features != NULL) { + *_features = 0; + } + return false; + } + + features = BVAL(values, 0); + + if (_features != NULL) { + *_features = features; + } + + return true; +} + +struct ndr_syntax_id dcerpc_construct_bind_time_features(uint64_t features) +{ + struct ndr_syntax_id s = dcerpc_bind_time_features_prefix; + uint8_t values[8]; + + SBVAL(values, 0, features); + + s.uuid.clock_seq[0] = values[0]; + s.uuid.clock_seq[1] = values[1]; + s.uuid.node[0] = values[2]; + s.uuid.node[1] = values[3]; + s.uuid.node[2] = values[4]; + s.uuid.node[3] = values[5]; + s.uuid.node[4] = values[6]; + s.uuid.node[5] = values[7]; + + return s; +} diff --git a/librpc/rpc/rpc_common.h b/librpc/rpc/rpc_common.h index 4210228d1d1..28600c9da7c 100644 --- a/librpc/rpc/rpc_common.h +++ b/librpc/rpc/rpc_common.h @@ -373,6 +373,36 @@ bool dcerpc_sec_verification_trailer_check( const struct dcerpc_sec_vt_pcontext *pcontext, const struct dcerpc_sec_vt_header2 *header2); +/** + * @brief check and optionally extract the Bind Time Features from + * the given ndr_syntax_id. + * + * <a href="http://msdn.microsoft.com/en-us/library/cc243715.aspx">MS-RPCE 3.3.1.5.3 Bind Time Feature Negotiation</a>. + * + * @param[in] s the syntax that should be checked. + * + * @param[out] features This is optional, it will be filled with the extracted + * features the on success, otherwise it's filled with 0. + * + * @return true if the syntax matches the 6CB71C2C-9812-4540 prefix with version 1, false otherwise. + * + * @see dcerpc_construct_bind_time_features + */ +bool dcerpc_extract_bind_time_features(struct ndr_syntax_id syntax, uint64_t *features); + +/** + * @brief Construct a ndr_syntax_id used for Bind Time Features Negotiation. + * + * <a href="http://msdn.microsoft.com/en-us/library/cc243715.aspx">MS-RPCE 3.3.1.5.3 Bind Time Feature Negotiation</a>. + * + * @param[in] features The supported features. + * + * @return The ndr_syntax_id with the given features. + * + * @see dcerpc_extract_bind_time_features + */ +struct ndr_syntax_id dcerpc_construct_bind_time_features(uint64_t features); + #define DCERPC_AUTH_PAD_LENGTH(stub_length) (\ (((stub_length) % DCERPC_AUTH_PAD_ALIGNMENT) > 0)?\ (DCERPC_AUTH_PAD_ALIGNMENT - (stub_length) % DCERPC_AUTH_PAD_ALIGNMENT):\ |