diff options
Diffstat (limited to 'Source/charon/payloads/proposal_substructure.c')
| -rw-r--r-- | Source/charon/payloads/proposal_substructure.c | 49 |
1 files changed, 48 insertions, 1 deletions
diff --git a/Source/charon/payloads/proposal_substructure.c b/Source/charon/payloads/proposal_substructure.c index 8947b7446..32c856744 100644 --- a/Source/charon/payloads/proposal_substructure.c +++ b/Source/charon/payloads/proposal_substructure.c @@ -126,6 +126,49 @@ encoding_rule_t proposal_substructure_encodings[] = { { TRANSFORMS, offsetof(private_proposal_substructure_t, transforms) } }; +/* + 1 2 3 + 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + ! 0 (last) or 2 ! RESERVED ! Proposal Length ! + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + ! Proposal # ! Protocol ID ! SPI Size !# of Transforms! + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + ~ SPI (variable) ~ + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + ! ! + ~ <Transforms> ~ + ! ! + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +*/ + +/** + * Implements payload_t's verify function. + * See #payload_s.verify for description. + */ +static status_t verify(private_proposal_substructure_t *this) +{ + if ((this->next_payload != NO_PAYLOAD) && (this->next_payload != PROPOSAL_SUBSTRUCTURE)) + { + /* must be 0 or 2 */ + return FAILED; + } + if (this->transforms_count != this->transforms->get_count(this->transforms)) + { + /* must be the same! */ + return FAILED; + } + + if (this->protocol_id > 4) + { + /* reserved are not supported */ + return FAILED; + } + + /* proposal number is checked in SA payload */ + return SUCCESS; +} + /** * Implements payload_t's and proposal_substructure_t's destroy function. * See #payload_s.destroy or proposal_substructure_s.destroy for description. @@ -354,13 +397,17 @@ proposal_substructure_t *proposal_substructure_create() { return NULL; } - + + /* interface functions */ + this->public.payload_interface.verify = (status_t (*) (payload_t *))verify; this->public.payload_interface.get_encoding_rules = (status_t (*) (payload_t *, encoding_rule_t **, size_t *) ) get_encoding_rules; this->public.payload_interface.get_length = (size_t (*) (payload_t *)) get_length; this->public.payload_interface.get_next_type = (payload_type_t (*) (payload_t *)) get_next_type; this->public.payload_interface.set_next_type = (status_t (*) (payload_t *,payload_type_t)) set_next_type; this->public.payload_interface.get_type = (payload_type_t (*) (payload_t *)) get_type; this->public.payload_interface.destroy = (status_t (*) (payload_t *))destroy; + + /* public functions */ this->public.create_transform_substructure_iterator = (status_t (*) (proposal_substructure_t *,linked_list_iterator_t **,bool)) create_transform_substructure_iterator; this->public.add_transform_substructure = (status_t (*) (proposal_substructure_t *,transform_substructure_t *)) add_transform_substructure; this->public.set_proposal_number = (status_t (*) (proposal_substructure_t *,u_int8_t))set_proposal_number; |