diff options
| author | Neels Hofmeyr <nhofmeyr@sysmocom.de> | 2016-04-19 01:21:41 +0200 |
|---|---|---|
| committer | Neels Hofmeyr <nhofmeyr@sysmocom.de> | 2016-04-19 01:32:25 +0200 |
| commit | a9f5566482f164564fe639da434aa9e8d6dc12c0 (patch) | |
| tree | 834fcdc98be02e9f16e20e4ff2be59bdc0895d92 | |
| parent | 68b7a4786887dc0b055780f650a5a16e6e57bba2 (diff) | |
ranap_msg_factory: add Security Mode Complete msg generator
Needed by hnb-test to reply to a Security Mode Command message.
| -rw-r--r-- | include/osmocom/ranap/ranap_msg_factory.h | 7 | ||||
| -rw-r--r-- | src/ranap_msg_factory.c | 31 |
2 files changed, 38 insertions, 0 deletions
diff --git a/include/osmocom/ranap/ranap_msg_factory.h b/include/osmocom/ranap/ranap_msg_factory.h index 7a9f3d2..d0fe4a2 100644 --- a/include/osmocom/ranap/ranap_msg_factory.h +++ b/include/osmocom/ranap/ranap_msg_factory.h @@ -4,6 +4,8 @@ #include <osmocom/ranap/RANAP_Cause.h> #include <osmocom/ranap/RANAP_CN-DomainIndicator.h> #include <osmocom/ranap/RANAP_GlobalRNC-ID.h> +#include <osmocom/ranap/RANAP_ChosenIntegrityProtectionAlgorithm.h> +#include <osmocom/ranap/RANAP_ChosenEncryptionAlgorithm.h> /*! \brief generate RANAP DIRECT TRANSFER message */ struct msgb *ranap_new_msg_dt(uint8_t sapi, const uint8_t *nas, unsigned int nas_len); @@ -11,6 +13,11 @@ struct msgb *ranap_new_msg_dt(uint8_t sapi, const uint8_t *nas, unsigned int nas /*! \brief generate RANAP SECURITY MODE COMMAND message */ struct msgb *ranap_new_msg_sec_mod_cmd(const uint8_t *ik, const uint8_t *ck); +/*! \brief generate RANAP SECURITY MODE COMPLETE message */ +struct msgb *ranap_new_msg_sec_mod_compl( + RANAP_ChosenIntegrityProtectionAlgorithm_t chosen_ip_alg, + RANAP_ChosenEncryptionAlgorithm_t chosen_enc_alg); + /*! \brief generate RANAP COMMON ID message */ struct msgb *ranap_new_msg_common_id(const char *imsi); diff --git a/src/ranap_msg_factory.c b/src/ranap_msg_factory.c index bdae92e..5ca7d96 100644 --- a/src/ranap_msg_factory.c +++ b/src/ranap_msg_factory.c @@ -263,6 +263,37 @@ struct msgb *ranap_new_msg_sec_mod_cmd(const uint8_t *ik, const uint8_t *ck) return msg; } +struct msgb *ranap_new_msg_sec_mod_compl( + RANAP_ChosenIntegrityProtectionAlgorithm_t chosen_ip_alg, + RANAP_ChosenEncryptionAlgorithm_t chosen_enc_alg) +{ + RANAP_SecurityModeCompleteIEs_t ies; + RANAP_SecurityModeComplete_t out; + struct msgb *msg; + int i, rc; + + memset(&ies, 0, sizeof(ies)); + memset(&out, 0, sizeof(out)); + + ies.presenceMask = SECURITYMODECOMPLETEIES_RANAP_CHOSENENCRYPTIONALGORITHM_PRESENT; + ies.chosenIntegrityProtectionAlgorithm = chosen_ip_alg; + ies.chosenEncryptionAlgorithm = chosen_enc_alg; + + /* ies -> out */ + rc = ranap_encode_securitymodecompleteies(&out, &ies); + + /* out -> msg */ + msg = ranap_generate_successful_outcome(RANAP_ProcedureCode_id_SecurityModeControl, + RANAP_Criticality_reject, + &asn_DEF_RANAP_SecurityModeComplete, + &out); + + /* release dynamic allocations attached to out */ + ASN_STRUCT_FREE_CONTENTS_ONLY(asn_DEF_RANAP_SecurityModeComplete, &out); + + return msg; +} + /*! \brief generate RANAP COMMON ID message */ struct msgb *ranap_new_msg_common_id(const char *imsi) { |