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Use a generic list encoding rule we can use to specify the wrapped payload type

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This commit is contained in:
Martin Willi
2012-03-20 17:30:42 +01:00
parent 95a26523af
commit f62a7c7c71
9 changed files with 77 additions and 179 deletions
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src/libcharon/encoding/generator.c
+8 -8
View File
@@ -451,14 +451,14 @@ METHOD(generator_t, generate_payload, void,
case CHUNK_DATA:
generate_from_chunk(this, rules[i].offset);
break;
case PROPOSALS:
case PROPOSALS_V1:
case TRANSFORMS:
case TRANSFORMS_V1:
case TRANSFORM_ATTRIBUTES:
case TRANSFORM_ATTRIBUTES_V1:
case CONFIGURATION_ATTRIBUTES:
case TRAFFIC_SELECTORS:
case PAYLOAD_LIST + PROPOSAL_SUBSTRUCTURE:
case PAYLOAD_LIST + PROPOSAL_SUBSTRUCTURE_V1:
case PAYLOAD_LIST + TRANSFORM_SUBSTRUCTURE:
case PAYLOAD_LIST + TRANSFORM_SUBSTRUCTURE_V1:
case PAYLOAD_LIST + TRANSFORM_ATTRIBUTE:
case PAYLOAD_LIST + TRANSFORM_ATTRIBUTE_V1:
case PAYLOAD_LIST + CONFIGURATION_ATTRIBUTE:
case PAYLOAD_LIST + TRAFFIC_SELECTOR_SUBSTRUCTURE:
{
linked_list_t *proposals;
enumerator_t *enumerator;
src/libcharon/encoding/parser.c
+9 -37
View File
@@ -358,34 +358,6 @@ static bool parse_chunk(private_parser_t *this, int rule_number,
return TRUE;
}
/**
* Map a encoding type to a encoded payload
*/
static payload_type_t map_wrapped_payload(encoding_type_t type)
{
switch (type)
{
case PROPOSALS:
return PROPOSAL_SUBSTRUCTURE;
case PROPOSALS_V1:
return PROPOSAL_SUBSTRUCTURE_V1;
case TRANSFORMS:
return TRANSFORM_SUBSTRUCTURE;
case TRANSFORMS_V1:
return TRANSFORM_SUBSTRUCTURE_V1;
case TRANSFORM_ATTRIBUTES:
return TRANSFORM_ATTRIBUTE;
case TRANSFORM_ATTRIBUTES_V1:
return TRANSFORM_ATTRIBUTE_V1;
case CONFIGURATION_ATTRIBUTES:
return CONFIGURATION_ATTRIBUTE;
case TRAFFIC_SELECTORS:
return TRAFFIC_SELECTOR_SUBSTRUCTURE;
default:
return NO_PAYLOAD;
}
}
METHOD(parser_t, parse_payload, status_t,
private_parser_t *this, payload_type_t payload_type, payload_t **payload)
{
@@ -513,18 +485,18 @@ METHOD(parser_t, parse_payload, status_t,
}
break;
}
/* lists */
case PROPOSALS:
case PROPOSALS_V1:
case TRANSFORMS:
case TRANSFORMS_V1:
case TRANSFORM_ATTRIBUTES:
case TRANSFORM_ATTRIBUTES_V1:
case TRAFFIC_SELECTORS:
case PAYLOAD_LIST + PROPOSAL_SUBSTRUCTURE:
case PAYLOAD_LIST + PROPOSAL_SUBSTRUCTURE_V1:
case PAYLOAD_LIST + TRANSFORM_SUBSTRUCTURE:
case PAYLOAD_LIST + TRANSFORM_SUBSTRUCTURE_V1:
case PAYLOAD_LIST + TRANSFORM_ATTRIBUTE:
case PAYLOAD_LIST + TRANSFORM_ATTRIBUTE_V1:
case PAYLOAD_LIST + CONFIGURATION_ATTRIBUTE:
case PAYLOAD_LIST + TRAFFIC_SELECTOR_SUBSTRUCTURE:
{
if (payload_length < header_length ||
!parse_list(this, rule_number, output + rule->offset,
map_wrapped_payload(rule->type),
rule->type - PAYLOAD_LIST,
payload_length - header_length))
{
pld->destroy(pld);
src/libcharon/encoding/payloads/cp_payload.c
+17 -17
View File
@@ -85,27 +85,27 @@ struct private_cp_payload_t {
*/
static encoding_rule_t encodings[] = {
/* 1 Byte next payload type, stored in the field next_payload */
{ U_INT_8, offsetof(private_cp_payload_t, next_payload) },
{ U_INT_8, offsetof(private_cp_payload_t, next_payload) },
/* the critical bit */
{ FLAG, offsetof(private_cp_payload_t, critical) },
{ FLAG, offsetof(private_cp_payload_t, critical) },
/* 7 Bit reserved bits */
{ RESERVED_BIT, offsetof(private_cp_payload_t, reserved_bit[0]) },
{ RESERVED_BIT, offsetof(private_cp_payload_t, reserved_bit[1]) },
{ RESERVED_BIT, offsetof(private_cp_payload_t, reserved_bit[2]) },
{ RESERVED_BIT, offsetof(private_cp_payload_t, reserved_bit[3]) },
{ RESERVED_BIT, offsetof(private_cp_payload_t, reserved_bit[4]) },
{ RESERVED_BIT, offsetof(private_cp_payload_t, reserved_bit[5]) },
{ RESERVED_BIT, offsetof(private_cp_payload_t, reserved_bit[6]) },
{ RESERVED_BIT, offsetof(private_cp_payload_t, reserved_bit[0]) },
{ RESERVED_BIT, offsetof(private_cp_payload_t, reserved_bit[1]) },
{ RESERVED_BIT, offsetof(private_cp_payload_t, reserved_bit[2]) },
{ RESERVED_BIT, offsetof(private_cp_payload_t, reserved_bit[3]) },
{ RESERVED_BIT, offsetof(private_cp_payload_t, reserved_bit[4]) },
{ RESERVED_BIT, offsetof(private_cp_payload_t, reserved_bit[5]) },
{ RESERVED_BIT, offsetof(private_cp_payload_t, reserved_bit[6]) },
/* Length of the whole CP payload*/
{ PAYLOAD_LENGTH, offsetof(private_cp_payload_t, payload_length) },
/* Proposals are stored in a proposal substructure,
offset points to a linked_list_t pointer */
{ U_INT_8, offsetof(private_cp_payload_t, type) },
{ PAYLOAD_LENGTH, offsetof(private_cp_payload_t, payload_length) },
{ U_INT_8, offsetof(private_cp_payload_t, type) },
/* 3 reserved bytes */
{ RESERVED_BYTE, offsetof(private_cp_payload_t, reserved_byte[0])},
{ RESERVED_BYTE, offsetof(private_cp_payload_t, reserved_byte[1])},
{ RESERVED_BYTE, offsetof(private_cp_payload_t, reserved_byte[2])},
{ CONFIGURATION_ATTRIBUTES, offsetof(private_cp_payload_t, attributes) }
{ RESERVED_BYTE, offsetof(private_cp_payload_t, reserved_byte[0])},
{ RESERVED_BYTE, offsetof(private_cp_payload_t, reserved_byte[1])},
{ RESERVED_BYTE, offsetof(private_cp_payload_t, reserved_byte[2])},
/* list of configuration attributes in a list */
{ PAYLOAD_LIST + CONFIGURATION_ATTRIBUTE,
offsetof(private_cp_payload_t, attributes) },
};
/*
src/libcharon/encoding/payloads/encodings.c
-8
View File
@@ -29,19 +29,11 @@ ENUM(encoding_type_names, U_INT_4, IKE_SPI,
"HEADER_LENGTH",
"SPI_SIZE",
"SPI",
"PROPOSALS",
"PROPOSALS_V1",
"TRANSFORMS",
"TRANSFORMS_V1",
"TRANSFORM_ATTRIBUTES",
"TRANSFORM_ATTRIBUTES_V1",
"CONFIGURATION_ATTRIBUTES",
"ATTRIBUTE_FORMAT",
"ATTRIBUTE_TYPE",
"ATTRIBUTE_LENGTH_OR_VALUE",
"CONFIGURATION_ATTRIBUTE_LENGTH",
"ATTRIBUTE_VALUE",
"TRAFFIC_SELECTORS",
"TS_TYPE",
"ADDRESS",
"CHUNK_DATA",
src/libcharon/encoding/payloads/encodings.h
+11 -80
View File
@@ -186,73 +186,6 @@ enum encoding_type_t {
*/
SPI,
/**
* Representating one or more proposal substructures.
*
* The offset points to a linked_list_t pointer.
*
* When generating the proposal_substructure_t objects are stored
* in the pointed linked_list.
*
* When parsing the parsed proposal_substructure_t objects have
* to be stored in the pointed linked_list.
*/
PROPOSALS,
/**
* Same as PROPOSALS, but for IKEv1 in a SECURITY_ASSOCIATION_V1
*/
PROPOSALS_V1,
/**
* Representating one or more transform substructures.
*
* The offset points to a linked_list_t pointer.
*
* When generating the transform_substructure_t objects are stored
* in the pointed linked_list.
*
* When parsing the parsed transform_substructure_t objects have
* to be stored in the pointed linked_list.
*/
TRANSFORMS,
/**
* Same as TRANSFORMS, but for IKEv1 in a PROPOSAL_SUBSTRUCTURE_V1.
*/
TRANSFORMS_V1,
/**
* Representating one or more Attributes of a transform substructure.
*
* The offset points to a linked_list_t pointer.
*
* When generating the transform_attribute_t objects are stored
* in the pointed linked_list.
*
* When parsing the parsed transform_attribute_t objects have
* to be stored in the pointed linked_list.
*/
TRANSFORM_ATTRIBUTES,
/**
* Same as TRANSFORM_ATTRIBUTES, but for IKEv1 in TRANSFORMS_V1.
*/
TRANSFORM_ATTRIBUTES_V1,
/**
* Representating one or more Attributes of a configuration payload.
*
* The offset points to a linked_list_t pointer.
*
* When generating the configuration_attribute_t objects are stored
* in the pointed linked_list.
*
* When parsing the parsed configuration_attribute_t objects have
* to be stored in the pointed linked_list.
*/
CONFIGURATION_ATTRIBUTES,
/**
* Representing a 1 Bit flag specifying the format of a transform attribute.
*
@@ -322,19 +255,6 @@ enum encoding_type_t {
*/
ATTRIBUTE_VALUE,
/**
* Representating one or more Traffic selectors of a TS payload.
*
* The offset points to a linked_list_t pointer.
*
* When generating the traffic_selector_substructure_t objects are stored
* in the pointed linked_list.
*
* When parsing the parsed traffic_selector_substructure_t objects have
* to be stored in the pointed linked_list.
*/
TRAFFIC_SELECTORS,
/**
* Representating a Traffic selector type field.
*
@@ -375,6 +295,17 @@ enum encoding_type_t {
* When parsing 8 bytes are read and written into the u_int64_t pointing to.
*/
IKE_SPI,
/**
* Reprensenting a field containing a set of wrapped payloads.
*
* This type is not used directly, but as an offset to the wrapped payloads.
* The type of the wrapped payload is added to this encoding type.
*
* @note As payload types are added to this encoding type, it has
* to be the last in encoding_type_t.
*/
PAYLOAD_LIST = 1000 /* no comma, read above! */
};
/**
src/libcharon/encoding/payloads/proposal_substructure.c
+6 -6
View File
@@ -112,9 +112,9 @@ static encoding_rule_t encodings_v1[] = {
{ U_INT_8, offsetof(private_proposal_substructure_t, transforms_count) },
/* SPI is a chunk of variable size*/
{ SPI, offsetof(private_proposal_substructure_t, spi) },
/* Transforms are stored in a transform substructure,
offset points to a linked_list_t pointer */
{ TRANSFORMS_V1, offsetof(private_proposal_substructure_t, transforms) }
/* Transforms are stored in a transform substructure list */
{ PAYLOAD_LIST + TRANSFORM_SUBSTRUCTURE_V1,
offsetof(private_proposal_substructure_t, transforms) },
};
/**
@@ -137,9 +137,9 @@ static encoding_rule_t encodings_v2[] = {
{ U_INT_8, offsetof(private_proposal_substructure_t, transforms_count) },
/* SPI is a chunk of variable size*/
{ SPI, offsetof(private_proposal_substructure_t, spi) },
/* Transforms are stored in a transform substructure,
offset points to a linked_list_t pointer */
{ TRANSFORMS, offsetof(private_proposal_substructure_t, transforms) }
/* Transforms are stored in a transform substructure list */
{ PAYLOAD_LIST + TRANSFORM_SUBSTRUCTURE,
offsetof(private_proposal_substructure_t, transforms) },
};
/*
src/libcharon/encoding/payloads/sa_payload.c
+6 -6
View File
@@ -99,9 +99,9 @@ static encoding_rule_t encodings_v1[] = {
{ U_INT_32, offsetof(private_sa_payload_t, doi) },
/* Situation*/
{ U_INT_32, offsetof(private_sa_payload_t, situation) },
/* Proposals are stored in a proposal substructure,
offset points to a linked_list_t pointer */
{ PROPOSALS_V1, offsetof(private_sa_payload_t, proposals) },
/* Proposals are stored in a proposal substructure list */
{ PAYLOAD_LIST + PROPOSAL_SUBSTRUCTURE_V1,
offsetof(private_sa_payload_t, proposals) },
};
/*
@@ -138,9 +138,9 @@ static encoding_rule_t encodings_v2[] = {
{ RESERVED_BIT, offsetof(private_sa_payload_t, reserved[6]) },
/* Length of the whole SA payload*/
{ PAYLOAD_LENGTH, offsetof(private_sa_payload_t, payload_length) },
/* Proposals are stored in a proposal substructure,
offset points to a linked_list_t pointer */
{ PROPOSALS, offsetof(private_sa_payload_t, proposals) },
/* Proposals are stored in a proposal substructure list */
{ PAYLOAD_LIST + PROPOSAL_SUBSTRUCTURE,
offsetof(private_sa_payload_t, proposals) },
};
/*
src/libcharon/encoding/payloads/transform_substructure.c
+17 -15
View File
@@ -83,19 +83,20 @@ struct private_transform_substructure_t {
*/
static encoding_rule_t encodings_v2[] = {
/* 1 Byte next payload type, stored in the field next_payload */
{ U_INT_8, offsetof(private_transform_substructure_t, next_payload) },
{ U_INT_8, offsetof(private_transform_substructure_t, next_payload) },
/* 1 Reserved Byte */
{ RESERVED_BYTE, offsetof(private_transform_substructure_t, reserved[0]) },
{ RESERVED_BYTE, offsetof(private_transform_substructure_t, reserved[0]) },
/* Length of the whole transform substructure*/
{ PAYLOAD_LENGTH, offsetof(private_transform_substructure_t, transform_length)},
{ PAYLOAD_LENGTH, offsetof(private_transform_substructure_t, transform_length)},
/* transform type */
{ U_INT_8, offsetof(private_transform_substructure_t, transform_ton) },
{ U_INT_8, offsetof(private_transform_substructure_t, transform_ton) },
/* transform identifier, as used by IKEv1 */
{ RESERVED_BYTE, offsetof(private_transform_substructure_t, reserved[1]) },
{ RESERVED_BYTE, offsetof(private_transform_substructure_t, reserved[1]) },
/* transform identifier, as used by IKEv2 */
{ U_INT_16, offsetof(private_transform_substructure_t, transform_id_v2) },
{ U_INT_16, offsetof(private_transform_substructure_t, transform_id_v2) },
/* Attributes in a transform attribute list */
{ TRANSFORM_ATTRIBUTES, offsetof(private_transform_substructure_t, attributes) }
{ PAYLOAD_LIST + TRANSFORM_ATTRIBUTE,
offsetof(private_transform_substructure_t, attributes) }
};
/**
@@ -103,20 +104,21 @@ static encoding_rule_t encodings_v2[] = {
*/
static encoding_rule_t encodings_v1[] = {
/* 1 Byte next payload type, stored in the field next_payload */
{ U_INT_8, offsetof(private_transform_substructure_t, next_payload) },
{ U_INT_8, offsetof(private_transform_substructure_t, next_payload) },
/* 1 Reserved Byte */
{ RESERVED_BYTE, offsetof(private_transform_substructure_t, reserved[0]) },
{ RESERVED_BYTE, offsetof(private_transform_substructure_t, reserved[0]) },
/* Length of the whole transform substructure*/
{ PAYLOAD_LENGTH, offsetof(private_transform_substructure_t, transform_length)},
{ PAYLOAD_LENGTH, offsetof(private_transform_substructure_t, transform_length)},
/* transform number */
{ U_INT_8, offsetof(private_transform_substructure_t, transform_ton)},
{ U_INT_8, offsetof(private_transform_substructure_t, transform_ton)},
/* transform identifier, as used by IKEv1 */
{ U_INT_8, offsetof(private_transform_substructure_t, transform_id_v1) },
{ U_INT_8, offsetof(private_transform_substructure_t, transform_id_v1) },
/* transform identifier, as used by IKEv2 */
{ RESERVED_BYTE, offsetof(private_transform_substructure_t, reserved[1]) },
{ RESERVED_BYTE, offsetof(private_transform_substructure_t, reserved[2]) },
{ RESERVED_BYTE, offsetof(private_transform_substructure_t, reserved[1]) },
{ RESERVED_BYTE, offsetof(private_transform_substructure_t, reserved[2]) },
/* Attributes in a transform attribute list */
{ TRANSFORM_ATTRIBUTES_V1, offsetof(private_transform_substructure_t, attributes) }
{ PAYLOAD_LIST + TRANSFORM_ATTRIBUTE_V1,
offsetof(private_transform_substructure_t, attributes) }
};
/*
src/libcharon/encoding/payloads/ts_payload.c
+3 -2
View File
@@ -102,8 +102,9 @@ static encoding_rule_t encodings[] = {
{ RESERVED_BYTE, offsetof(private_ts_payload_t, reserved_byte[0])},
{ RESERVED_BYTE, offsetof(private_ts_payload_t, reserved_byte[1])},
{ RESERVED_BYTE, offsetof(private_ts_payload_t, reserved_byte[2])},
/* some ts data bytes, length is defined in PAYLOAD_LENGTH */
{ TRAFFIC_SELECTORS,offsetof(private_ts_payload_t, substrs) }
/* wrapped list of traffic selectors substructures */
{ PAYLOAD_LIST + TRAFFIC_SELECTOR_SUBSTRUCTURE,
offsetof(private_ts_payload_t, substrs) },
};
/*