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Merge pull request #137 from pily112/Configurable_mcc_mnc_in_HSS

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Configurable mcc mnc in hss, debug prints and fix MAC failure error
master
Ismael Gomez 7 years ago committed by GitHub
parent 636c8b711b 9f4e8c0632
commit e8985dbdbc
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GPG Key ID: 4AEE18F83AFDEB23
6 changed files with 229 additions and 21 deletions
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4
lib/test/common/CMakeLists.txt
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@ -37,6 +37,10 @@ add_executable(test_eea2 test_eea2.cc)
target_link_libraries(test_eea2 srslte_common ${CMAKE_THREAD_LIBS_INIT}) target_link_libraries(test_eea2 srslte_common ${CMAKE_THREAD_LIBS_INIT})
add_test(test_eea2 test_eea2) add_test(test_eea2 test_eea2)
add_executable(test_f12345 test_f12345.cc)
target_link_libraries(test_f12345 srslte_common ${CMAKE_THREAD_LIBS_INIT})
add_test(test_f12345 test_f12345)
add_executable(log_filter_test log_filter_test.cc) add_executable(log_filter_test log_filter_test.cc)
target_link_libraries(log_filter_test srslte_phy srslte_common srslte_phy ${SEC_LIBRARIES} ${CMAKE_THREAD_LIBS_INIT} ${Boost_LIBRARIES}) target_link_libraries(log_filter_test srslte_phy srslte_common srslte_phy ${SEC_LIBRARIES} ${CMAKE_THREAD_LIBS_INIT} ${Boost_LIBRARIES})

170
lib/test/common/test_f12345.cc
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@ -0,0 +1,170 @@
/*
* Includes
*/
#include <stdlib.h>
#include <stdio.h>
#include <assert.h>
#include "srslte/common/liblte_security.h"
/*
* Prototypes
*/
int32 arrcmp(uint8_t const * const a, uint8_t const * const b, uint32 len) {
uint32 i = 0;
for (i = 0; i < len; i++) {
if (a[i] != b[i]) {
return a[i] - b[i];
}
}
return 0;
}
void arrprint(uint8_t const * const a, uint32 len) {
uint32 i = 0;
for (i = 0; i < len; i++) {
printf("0x%02x ", a[i]);
if ((i%16==0) && i)
printf("\n");
}
printf("\n");
return;
}
/*
* Tests
*
* Document Reference: 35.208 e00
*/
/*
* Functions
*/
void test_set_2()
{
LIBLTE_ERROR_ENUM err_lte = LIBLTE_ERROR_INVALID_INPUTS;
int32 err_cmp = 0;
uint8_t k[] = {0x46, 0x5b, 0x5c, 0xe8, 0xb1, 0x99, 0xb4, 0x9f, 0xaa, 0x5f, 0x0a, 0x2e, 0xe2, 0x38, 0xa6, 0xbc};
uint8_t rand[] = {0x23, 0x55, 0x3c, 0xbe, 0x96, 0x37, 0xa8, 0x9d, 0x21, 0x8a, 0xe6, 0x4d, 0xae, 0x47, 0xbf, 0x35};
uint8_t sqn[] = {0xff, 0x9b, 0xb4, 0xd0, 0xb6, 0x07};
uint8_t amf[] = {0xb9, 0xb9};
uint8_t op[] = {0xcd, 0xc2, 0x02, 0xd5, 0x12, 0x3e, 0x20, 0xf6, 0x2b, 0x6d, 0x67, 0x6a, 0xc7, 0x2c, 0xb3, 0x18};
// f1
uint8_t mac_o[8];
err_lte = liblte_security_milenage_f1(k,
op,
rand,
sqn,
amf,
mac_o);
assert(err_lte == LIBLTE_SUCCESS);
arrprint(mac_o, sizeof(mac_o));
uint8_t mac_a[] = {0x4a, 0x9f, 0xfa, 0xc3, 0x54, 0xdf, 0xaf, 0xb3};
// compare mac a
err_cmp = arrcmp(mac_o, mac_a, sizeof(mac_a));
assert(err_cmp == 0);
// f1 star
uint8_t mac_so[8];
err_lte = liblte_security_milenage_f1_star(k,
op,
rand,
sqn,
amf,
mac_so);
assert(err_lte == LIBLTE_SUCCESS);
uint8_t mac_s[] = {0x01, 0xcf, 0xaf, 0x9e, 0xc4, 0xe8, 0x71, 0xe9};
arrprint(mac_so, sizeof(mac_so));
err_cmp = arrcmp(mac_so, mac_s, sizeof(mac_s));
assert(err_cmp == 0);
// f2345
uint8_t res_o[8];
uint8_t ck_o[16];
uint8_t ik_o[16];
uint8_t ak_o[6];
err_lte = liblte_security_milenage_f2345(k,
op,
rand,
res_o,
ck_o,
ik_o,
ak_o);
assert(err_lte == LIBLTE_SUCCESS);
uint8_t res[] = {0xa5, 0x42, 0x11, 0xd5, 0xe3, 0xba, 0x50, 0xbf};
uint8_t ck[] = {0xb4, 0x0b, 0xa9, 0xa3, 0xc5, 0x8b, 0x2a, 0x05, 0xbb, 0xf0, 0xd9, 0x87, 0xb2, 0x1b, 0xf8, 0xcb};
uint8_t ik[] = {0xf7, 0x69, 0xbc, 0xd7, 0x51, 0x04, 0x46, 0x04, 0x12, 0x76, 0x72, 0x71, 0x1c, 0x6d, 0x34, 0x41};
uint8_t ak[] = {0xaa, 0x68, 0x9c, 0x64, 0x83, 0x70};
// RESPONSE
arrprint(res_o, sizeof(res_o));
err_cmp = arrcmp(res_o, res, sizeof(res));
assert(err_cmp == 0);
// CK
arrprint(ck_o, sizeof(ck_o));
err_cmp = arrcmp(ck_o, ck, sizeof(ck));
assert(err_cmp == 0);
// IK
arrprint(ik_o, sizeof(ik_o));
err_cmp = arrcmp(ik_o, ik, sizeof(ik));
assert(err_cmp == 0);
// AK
arrprint(ak_o, sizeof(ak_o));
err_cmp = arrcmp(ak_o, ak, sizeof(ak));
assert(err_cmp == 0);
// f star
uint8_t ak_star_o[6];
err_lte = liblte_security_milenage_f5_star(k, op, rand, ak_star_o);
assert(err_lte == LIBLTE_SUCCESS);
arrprint(ak_star_o, sizeof(ak_star_o));
uint8_t ak_star[] = {0x45, 0x1e, 0x8b, 0xec, 0xa4, 0x3b};
err_cmp = arrcmp(ak_star_o, ak_star, sizeof(ak_star));
assert(err_cmp == 0);
return;
}
/*
Own test sets
*/
int main(int argc, char * argv[]) {
test_set_2();
/*
test_set_3();
test_set_4();
test_set_5();
test_set_6();
*/
}

6
srsepc/hdr/hss/hss.h
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@ -46,6 +46,8 @@ namespace srsepc{
typedef struct{ typedef struct{
std::string auth_algo; std::string auth_algo;
std::string db_file; std::string db_file;
uint16_t mcc;
uint16_t mnc;
}hss_args_t; }hss_args_t;
typedef struct{ typedef struct{
@ -98,7 +100,9 @@ private:
/*Logs*/ /*Logs*/
srslte::log_filter *m_hss_log; srslte::log_filter *m_hss_log;
uint16_t mcc;
uint16_t mnc;
}; };
} // namespace srsepc } // namespace srsepc

48
srsepc/src/hss/hss.cc
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@ -90,7 +90,10 @@ hss::init(hss_args_t *hss_args, srslte::log_filter *hss_log)
return -1; return -1;
} }
m_hss_log->info("HSS Initialized. DB file %s, authentication algorithm %s\n", hss_args->db_file.c_str(),hss_args->auth_algo.c_str()); mcc = hss_args->mcc;
mnc = hss_args->mnc;
m_hss_log->info("HSS Initialized. DB file %s, authentication algorithm %s, MCC: %d, MNC: %d\n", hss_args->db_file.c_str(),hss_args->auth_algo.c_str(), mcc, mnc);
m_hss_log->console("HSS Initialized\n"); m_hss_log->console("HSS Initialized\n");
return 0; return 0;
} }
@ -203,8 +206,6 @@ hss::gen_auth_info_answer_milenage(uint64_t imsi, uint8_t *k_asme, uint8_t *autn
uint8_t ak[6]; uint8_t ak[6];
uint8_t mac[8]; uint8_t mac[8];
uint16_t mcc=61441; //001
uint16_t mnc=65281; //01
if(!get_k_amf_op(imsi,k,amf,op)) if(!get_k_amf_op(imsi,k,amf,op))
{ {
@ -212,7 +213,7 @@ hss::gen_auth_info_answer_milenage(uint64_t imsi, uint8_t *k_asme, uint8_t *autn
} }
gen_rand(rand); gen_rand(rand);
get_sqn(sqn); get_sqn(sqn);
security_milenage_f2345( k, security_milenage_f2345( k,
op, op,
rand, rand,
@ -221,6 +222,14 @@ hss::gen_auth_info_answer_milenage(uint64_t imsi, uint8_t *k_asme, uint8_t *autn
ik, ik,
ak); ak);
m_hss_log->debug_hex(k, 16, "User Key : ");
m_hss_log->debug_hex(op, 16, "User OP : ");
m_hss_log->debug_hex(rand, 16, "User Rand : ");
m_hss_log->debug_hex(xres, 8, "User XRES: ");
m_hss_log->debug_hex(ck, 16, "User CK: ");
m_hss_log->debug_hex(ik, 16, "User IK: ");
m_hss_log->debug_hex(ak, 6, "User AK: ");
security_milenage_f1( k, security_milenage_f1( k,
op, op,
rand, rand,
@ -228,6 +237,9 @@ hss::gen_auth_info_answer_milenage(uint64_t imsi, uint8_t *k_asme, uint8_t *autn
amf, amf,
mac); mac);
m_hss_log->debug_hex(sqn, 6, "User SQN : ");
m_hss_log->debug_hex(mac, 8, "User MAC : ");
// Generate K_asme // Generate K_asme
security_generate_k_asme( ck, security_generate_k_asme( ck,
ik, ik,
@ -237,6 +249,9 @@ hss::gen_auth_info_answer_milenage(uint64_t imsi, uint8_t *k_asme, uint8_t *autn
mnc, mnc,
k_asme); k_asme);
m_hss_log->debug("User MCC : %x MNC : %x \n", mcc, mnc);
m_hss_log->debug_hex(k_asme, 32, "User k_asme : ");
//Generate AUTN (autn = sqn ^ ak |+| amf |+| mac) //Generate AUTN (autn = sqn ^ ak |+| amf |+| mac)
for(int i=0;i<6;i++ ) for(int i=0;i<6;i++ )
{ {
@ -250,10 +265,8 @@ hss::gen_auth_info_answer_milenage(uint64_t imsi, uint8_t *k_asme, uint8_t *autn
{ {
autn[8+i]=mac[i]; autn[8+i]=mac[i];
} }
m_hss_log->debug_hex(sqn, 6, "User SQN : "); m_hss_log->debug_hex(autn, 16, "User AUTN: ");
m_hss_log->debug_hex(autn, 8, "User AUTN: ");
m_hss_log->debug_hex(xres, 8, "User XRES: ");
return true; return true;
} }
@ -274,9 +287,6 @@ hss::gen_auth_info_answer_xor(uint64_t imsi, uint8_t *k_asme, uint8_t *autn, uin
uint8_t ak[6]; uint8_t ak[6];
uint8_t mac[8]; uint8_t mac[8];
uint16_t mcc=61441; //001
uint16_t mnc=65281; //01
int i = 0; int i = 0;
if(!get_k_amf_op(imsi,k,amf,op)) if(!get_k_amf_op(imsi,k,amf,op))
@ -300,6 +310,14 @@ hss::gen_auth_info_answer_xor(uint64_t imsi, uint8_t *k_asme, uint8_t *autn, uin
ak[i] = xdout[i+3]; ak[i] = xdout[i+3];
} }
m_hss_log->debug_hex(k, 16, "User Key : ");
m_hss_log->debug_hex(op, 16, "User OP : ");
m_hss_log->debug_hex(rand, 16, "User Rand : ");
m_hss_log->debug_hex(xres, 8, "User XRES: ");
m_hss_log->debug_hex(ck, 16, "User CK: ");
m_hss_log->debug_hex(ik, 16, "User IK: ");
m_hss_log->debug_hex(ak, 6, "User AK: ");
// Generate cdout // Generate cdout
for(i=0; i<6; i++) { for(i=0; i<6; i++) {
cdout[i] = sqn[i]; cdout[i] = sqn[i];
@ -313,6 +331,9 @@ hss::gen_auth_info_answer_xor(uint64_t imsi, uint8_t *k_asme, uint8_t *autn, uin
mac[i] = xdout[i] ^ cdout[i]; mac[i] = xdout[i] ^ cdout[i];
} }
m_hss_log->debug_hex(sqn, 6, "User SQN : ");
m_hss_log->debug_hex(mac, 8, "User MAC : ");
//Generate AUTN (autn = sqn ^ ak |+| amf |+| mac) //Generate AUTN (autn = sqn ^ ak |+| amf |+| mac)
for(int i=0;i<6;i++ ) for(int i=0;i<6;i++ )
{ {
@ -335,6 +356,9 @@ hss::gen_auth_info_answer_xor(uint64_t imsi, uint8_t *k_asme, uint8_t *autn, uin
mcc, mcc,
mnc, mnc,
k_asme); k_asme);
m_hss_log->debug("User MCC : %x MNC : %x \n", mcc, mnc);
m_hss_log->debug_hex(k_asme, 32, "User k_asme : ");
//Generate AUTN (autn = sqn ^ ak |+| amf |+| mac) //Generate AUTN (autn = sqn ^ ak |+| amf |+| mac)
for(int i=0;i<6;i++ ) for(int i=0;i<6;i++ )
@ -350,9 +374,7 @@ hss::gen_auth_info_answer_xor(uint64_t imsi, uint8_t *k_asme, uint8_t *autn, uin
autn[8+i]=mac[i]; autn[8+i]=mac[i];
} }
m_hss_log->debug_hex(sqn, 6, "User SQN : ");
m_hss_log->debug_hex(autn, 8, "User AUTN: "); m_hss_log->debug_hex(autn, 8, "User AUTN: ");
m_hss_log->debug_hex(xres, 8, "User XRES: ");
return true; return true;
} }

14
srsepc/src/main.cc
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@ -189,12 +189,20 @@ parse_args(all_args_t *args, int argc, char* argv[]) {
} }
// Convert MCC/MNC strings // Convert MCC/MNC strings
if(!srslte::string_to_mcc(mcc, &args->mme_args.s1ap_args.mcc)) { if(!srslte::string_to_mcc(mcc, &args->mme_args.s1ap_args.mcc)) {
cout << "Error parsing enb.mcc:" << mcc << " - must be a 3-digit string." << endl; cout << "Error parsing mme.mcc:" << mcc << " - must be a 3-digit string." << endl;
} }
if(!srslte::string_to_mnc(mnc, &args->mme_args.s1ap_args.mnc)) { if(!srslte::string_to_mnc(mnc, &args->mme_args.s1ap_args.mnc)) {
cout << "Error parsing enb.mnc:" << mnc << " - must be a 2 or 3-digit string." << endl; cout << "Error parsing mme.mnc:" << mnc << " - must be a 2 or 3-digit string." << endl;
} }
// Convert MCC/MNC strings
if(!srslte::string_to_mcc(mcc, &args->hss_args.mcc)) {
cout << "Error parsing mme.mcc:" << mcc << " - must be a 3-digit string." << endl;
}
if(!srslte::string_to_mnc(mnc, &args->hss_args.mnc)) {
cout << "Error parsing mme.mnc:" << mnc << " - must be a 2 or 3-digit string." << endl;
}
args->mme_args.s1ap_args.mme_bind_addr = mme_bind_addr; args->mme_args.s1ap_args.mme_bind_addr = mme_bind_addr;
args->spgw_args.gtpu_bind_addr = spgw_bind_addr; args->spgw_args.gtpu_bind_addr = spgw_bind_addr;
args->spgw_args.sgi_if_addr = sgi_if_addr; args->spgw_args.sgi_if_addr = sgi_if_addr;
@ -302,7 +310,7 @@ main (int argc,char * argv[] )
cout << "Error initializing MME" << endl; cout << "Error initializing MME" << endl;
exit(1); exit(1);
} }
hss *hss = hss::get_instance(); hss *hss = hss::get_instance();
if (hss->init(&args.hss_args,&hss_log)) { if (hss->init(&args.hss_args,&hss_log)) {
cout << "Error initializing HSS" << endl; cout << "Error initializing HSS" << endl;

8
srsepc/src/mme/s1ap_nas_transport.cc
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@ -241,7 +241,7 @@ s1ap_nas_transport::handle_nas_imsi_attach_request(uint32_t enb_ue_s1ap_id,
{ {
uint8_t k_asme[32]; uint8_t k_asme[32];
uint8_t autn[16]; uint8_t autn[16];
uint8_t rand[6]; uint8_t rand[16];
uint8_t xres[8]; uint8_t xres[8];
ue_ctx_t ue_ctx; ue_ctx_t ue_ctx;
@ -317,7 +317,7 @@ s1ap_nas_transport::handle_nas_imsi_attach_request(uint32_t enb_ue_s1ap_id,
m_s1ap->add_new_ue_ctx(ue_ctx); m_s1ap->add_new_ue_ctx(ue_ctx);
//Pack NAS Authentication Request in Downlink NAS Transport msg //Pack NAS Authentication Request in Downlink NAS Transport msg
pack_authentication_request(reply_buffer, ue_ctx.enb_ue_s1ap_id, ue_ctx.mme_ue_s1ap_id, autn, rand); pack_authentication_request(reply_buffer, ue_ctx.enb_ue_s1ap_id, ue_ctx.mme_ue_s1ap_id, autn, rand);
//Send reply to eNB //Send reply to eNB
*reply_flag = true; *reply_flag = true;
m_s1ap_log->info("Downlink NAS: Sending Athentication Request\n"); m_s1ap_log->info("Downlink NAS: Sending Athentication Request\n");
@ -584,7 +584,7 @@ bool
s1ap_nas_transport::handle_identity_response(srslte::byte_buffer_t *nas_msg, ue_ctx_t* ue_ctx, srslte::byte_buffer_t *reply_msg, bool *reply_flag) s1ap_nas_transport::handle_identity_response(srslte::byte_buffer_t *nas_msg, ue_ctx_t* ue_ctx, srslte::byte_buffer_t *reply_msg, bool *reply_flag)
{ {
uint8_t autn[16]; uint8_t autn[16];
uint8_t rand[6]; uint8_t rand[16];
uint8_t xres[8]; uint8_t xres[8];
LIBLTE_MME_ID_RESPONSE_MSG_STRUCT id_resp; LIBLTE_MME_ID_RESPONSE_MSG_STRUCT id_resp;
@ -609,7 +609,7 @@ s1ap_nas_transport::handle_identity_response(srslte::byte_buffer_t *nas_msg, ue_
m_s1ap_log->info("User not found. IMSI %015lu\n",imsi); m_s1ap_log->info("User not found. IMSI %015lu\n",imsi);
return false; return false;
} }
//Pack NAS Authentication Request in Downlink NAS Transport msg //Pack NAS Authentication Request in Downlink NAS Transport msg
pack_authentication_request(reply_msg, ue_ctx->enb_ue_s1ap_id, ue_ctx->mme_ue_s1ap_id, autn, rand); pack_authentication_request(reply_msg, ue_ctx->enb_ue_s1ap_id, ue_ctx->mme_ue_s1ap_id, autn, rand);

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