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cbalint13/o5gs-issue-1201.c

Last active October 20, 2021 10:12
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Testcase for open5gs issue #1201
Raw
o5gs-issue-1201.c
/*
COMPILE:
gcc testcase.c -g -O2 \
-DOGS_GTP_INSIDE -DOGS_GTP_COMPILATION \
-I/home/cbalint/rpmbuild/BUILD/open5gs/lib/gtp \
-I/home/cbalint/rpmbuild/BUILD/open5gs/lib/core \
-I/home/cbalint/rpmbuild/BUILD/open5gs/redhat-linux-build/lib \
-I/home/cbalint/rpmbuild/BUILD/open5gs/lib \
-I/home/cbalint/rpmbuild/BUILD/open5gs/lib/app/ \
-I/home/cbalint/rpmbuild/BUILD/open5gs/lib/nas/common/ \
-I/home/cbalint/rpmbuild/BUILD/open5gs/lib/crypt/ \
-o test libogsgtp.so.2 libogscore.so.2 libogsapp.so.2
RUN:
LD_LIBRARY_PATH=`pwd` ./test
*/
// (gdb) print *recvbuf
// $105 = {
// lnode = {
// prev = 0x0,
// next = 0x0
// },
// param = {0, 0},
// cluster = 0x7f97898269d0,
// len = 140,
// head = 0x7f9788078010 "H_",
// tail = 0x7f978807809c "",
// data = 0x7f9788078010 "H_",
// end = 0x7f978807a010 "",
// file_line = 0x5654884d539a "../src/sgwc/gtp-path.c:33",
// pool = 0x565488cdb150
// }
// (gdb) print recvbuf.data
// $106 = 140
// (gdb) x/140b 0x7f9788078010
// 0x7f9788078010:, 0x48, 0x5f, 0x00, 0x88, 0x00, 0x00, 0x00, 0x02
// 0x7f9788078018:, 0x12, 0x00, 0x01, 0x00, 0x49, 0x00, 0x01, 0x00
// 0x7f9788078020:, 0x06, 0x5d, 0x00, 0x77, 0x00, 0x49, 0x00, 0x01
// 0x7f9788078028:, 0x00, 0x00, 0x57, 0x00, 0x09, 0x01, 0x85, 0x66
// 0x7f9788078030:, 0x8e, 0x15, 0x66, 0x52, 0x89, 0x24, 0x65, 0x5e
// 0x7f9788078038:, 0x00, 0x04, 0x00, 0x15, 0x65, 0x91, 0x3a, 0x54
// 0x7f9788078040:, 0x00, 0x3f, 0x00, 0x24, 0x20, 0x04, 0x11, 0x10
// 0x7f9788078048:, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
// 0x7f9788078050:, 0x30, 0x11, 0x40, 0xc3, 0x82, 0x50, 0xff, 0xff
// 0x7f9788078058:, 0x11, 0x05, 0x08, 0x30, 0x11, 0x50, 0xff, 0xff
// 0x7f9788078060:, 0x40, 0xc3, 0x82, 0x22, 0x08, 0x11, 0x10, 0x00
// 0x7f9788078068:, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30
// 0x7f9788078070:, 0x11, 0x40, 0xc3, 0x83, 0x50, 0xff, 0xff, 0x13
// 0x7f9788078078:, 0x09, 0x08, 0x30, 0x11, 0x50, 0xff, 0xff, 0x40
// 0x7f9788078080:, 0xc3, 0x83, 0x50, 0x00, 0x16, 0x00, 0x09, 0x01
// 0x7f9788078088:, 0x00, 0x00, 0x00, 0x00, 0x2c, 0x00, 0x00, 0x00
// 0x7f9788078090:, 0x00, 0x2c, 0x00, 0x00, 0x00, 0x00, 0x2c, 0x00
// 0x7f9788078098:, 0x00, 0x00, 0x00, 0x2c
// 0x7f9788078004: 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
// 0x7f978807800c: 0x00 0x00 0x00 0x00 0x48 0x5f 0x00 0x88
// 0x7f9788078014: 0x00 0x00 0x00 0x02 0x12 0x00 0x01 0x00
// 0x7f978807801c: 0x49 0x00 0x01 0x00 0x06 0x5d 0x00 0x77
// 0x7f9788078024: 0x00 0x49 0x00 0x01 0x00 0x00 0x57 0x00
// 0x7f978807802c: 0x09 0x01 0x85 0x66 0x8e 0x15 0x66 0x52
// 0x7f9788078034: 0x89 0x24 0x65 0x5e 0x00 0x04 0x00 0x15
// 0x7f978807803c: 0x65 0x91 0x3a 0x54 0x00 0x3f 0x00 0x24
// 0x7f9788078044: 0x20 0x04 0x11 0x10 0x00 0x00 0x00 0x00
// 0x7f978807804c: 0x00 0x00 0x00 0x00 0x30 0x11 0x40 0xc3
// 0x7f9788078054: 0x82 0x50 0xff 0xff 0x11 0x05 0x08 0x30
// 0x7f978807805c: 0x11 0x50 0xff 0xff 0x40 0xc3 0x82 0x22
// 0x7f9788078064: 0x08 0x11 0x10 0x00 0x00 0x00 0x00 0x00
// 0x7f978807806c: 0x00 0x00 0x00 0x30 0x11 0x40 0xc3 0x83
// 0x7f9788078074: 0x50 0xff 0xff 0x13 0x09 0x08 0x30 0x11
// 0x7f978807807c: 0x50 0xff 0xff 0x40 0xc3 0x83 0x50 0x00
// 0x7f9788078084: 0x16 0x00 0x09 0x01 0x00 0x00 0x00 0x00
// 0x7f978807808c: 0x2c 0x00 0x00 0x00 0x00 0x2c 0x00 0x00
// 0x7f9788078094: 0x00 0x00 0x2c 0x00 0x00 0x00 0x00 0x2c
#include <signal.h>
#include <stddef.h>
#include "ogs-gtp.h"
//unsigned char data[140] = "H_\000\210\000\000\000\002\022\000\001\000I\000\001\000\006]\000w\000I\000\001\000\000W\000\t\001\205f\216\025fR\211$e^\000\004\000\025e\221:T\000?\000$ \004\021\020\000\000\000\000\000\000\000\000\060\021@ÂP\377\377\021\005\b0\021P\377\377@Â\"\b\021\020\000\000\000\000\000\000\000\000\060\021@ÃP\377\377\023\t\b0\021P\377\377@ÃP\000\026\000\t\001\000\000\000\000,\000\000\000\000,\000\000\000\000,\000\000\000\000,";
unsigned char data[140] = { 0x48, 0x5f, 0x00, 0x88, 0x00, 0x00, 0x00, 0x02,
0x12, 0x00, 0x01, 0x00, 0x49, 0x00, 0x01, 0x00,
0x06, 0x5d, 0x00, 0x77, 0x00, 0x49, 0x00, 0x01,
0x00, 0x00, 0x57, 0x00, 0x09, 0x01, 0x85, 0x66,
0x8e, 0x15, 0x66, 0x52, 0x89, 0x24, 0x65, 0x5e,
0x00, 0x04, 0x00, 0x15, 0x65, 0x91, 0x3a, 0x54,
0x00, 0x3f, 0x00, 0x24, 0x20, 0x04, 0x11, 0x10,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x30, 0x11, 0x40, 0xc3, 0x82, 0x50, 0xff, 0xff,
0x11, 0x05, 0x08, 0x30, 0x11, 0x50, 0xff, 0xff,
0x40, 0xc3, 0x82, 0x22, 0x08, 0x11, 0x10, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30,
0x11, 0x40, 0xc3, 0x83, 0x50, 0xff, 0xff, 0x13,
0x09, 0x08, 0x30, 0x11, 0x50, 0xff, 0xff, 0x40,
0xc3, 0x83, 0x50, 0x00, 0x16, 0x00, 0x09, 0x01,
0x00, 0x00, 0x00, 0x00, 0x2c, 0x00, 0x00, 0x00,
0x00, 0x2c, 0x00, 0x00, 0x00, 0x00, 0x2c, 0x00,
0x00, 0x00, 0x00, 0x2c };
//OGS_POOL(pool, ogs_tlv_t);
int main(void *)
{
ogs_tlv_init();
ogs_gtp_message_t gtp_message;
ogs_pkbuf_t *recvbuf = NULL;
recvbuf = (ogs_pkbuf_t *) malloc(sizeof(ogs_pkbuf_t));
recvbuf->len = sizeof(data);
recvbuf->data = (unsigned char *) malloc(sizeof(data));
memcpy(recvbuf->data, data, sizeof(data));
printf("data array base addr %p\n", recvbuf->data);
printf("data array[0] at base: 0x%02x\n", recvbuf->data[0]);
printf("data array len: %i\n", recvbuf->len);
printf("data array entry addr %p\n", recvbuf->data);
printf("data array[0] at entry: 0x%02x\n", recvbuf->data[0]);
int err = ogs_gtp_parse_msg(&gtp_message, recvbuf);
printf("gtp_message.create_bearer_request.bearer_contexts.s5_s8_u_sgw_f_teid.presence = %i\n",
gtp_message.create_bearer_request.bearer_contexts.s5_s8_u_sgw_f_teid.presence);
printf("gtp_message.create_bearer_request.bearer_contexts.s5_s8_u_sgw_f_teid.len = %i\n",
gtp_message.create_bearer_request.bearer_contexts.s5_s8_u_sgw_f_teid.len);
printf("gtp_message.create_bearer_request.bearer_contexts.s5_s8_u_sgw_f_teid.data = %p\n",
gtp_message.create_bearer_request.bearer_contexts.s5_s8_u_sgw_f_teid.data);
// https://github.com/open5gs/open5gs/blob/f05accc7f3928a40b38bc20b6a16863b7aefcc07/src/sgwc/s5c-handler.c#L406
// (gdb) frame 3
// #3 0x00005654884c91af in sgwc_s5c_handle_create_bearer_request (sess=0x7f977e44e260, s5c_xact=0x7f977dbb7ad8, gtpbuf=0x7f9789ae8fd0, message=0x7f977da1c990) at ../src/sgwc/s5c-handler.c:410
// 410 in ../src/sgwc/s5c-handler.c
// (gdb) print message.create_bearer_request.bearer_contexts.s5_s8_u_sgw_f_teid
// $54 = {
// presence = 0,
// data = 0x0,
// len = 0 }
if (gtp_message.create_bearer_request.bearer_contexts.s5_s8_u_sgw_f_teid.presence == 0) {
ogs_error("No GTP TEID\n");
}
return 0;
}
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