undefined4 dhcp6_get_options(uint *param_1,uint *param_2,int param_3)
{
undefined4 uVar1;
int iVar2;
void *pvVar3;
int iVar4;
char *__s;
uint uVar5;
uint uVar6;
uint uVar7;
uint uVar8;
uint in_t5;
uint *__src;
char *__s_00;
uint uVar9;
uint uVar10;
uint *puVar11;
char *__s_01;
byte *pbVar12;
undefined2 local_108;
ushort local_106;
ushort local_104;
uint local_100;
uint local_fc;
uint local_f8;
undefined4 local_f4;
undefined4 *local_f0;
uint local_ec;
uint *local_e8;
uint local_e4;
uint local_e0;
uint local_dc;
char local_d8 [16];
char local_c8 [16];
char local_b8 [16];
uint local_a8;
uint local_a4;
uint local_a0;
uint local_9c;
char local_98 [24];
uint *local_80;
int local_7c;
int local_78;
int local_74;
int local_70;
int local_6c;
int local_68;
int local_64;
int local_60;
int local_5c;
int local_58;
int local_54;
int local_50;
int local_4c;
int local_48;
int local_44;
uint *local_40;
undefined4 *local_3c;
undefined4 *local_38;
int local_34;
int local_30;
int local_2c;
local_34 = param_3 + 0x38;
local_4c = param_3 + 0x70;
local_2c = param_3 + 8;
local_64 = param_3 + 0x68;
local_30 = param_3 + 0x40;
local_44 = param_3 + 0x50;
local_7c = param_3 + 0x30;
local_38 = (undefined4 *)(param_3 + 0xd8);
local_40 = (uint *)(param_3 + 0xe8);
local_3c = (undefined4 *)(param_3 + 0xe0);
local_48 = param_3 + 0x60;
local_5c = param_3 + 0x48;
local_50 = param_3 + 0x90;
local_54 = param_3 + 0xa0;
local_58 = param_3 + 0xb0;
local_60 = param_3 + 0x58;
__src = param_1 + 1;
local_74 = param_3 + 0x78;
local_68 = param_3 + 0x88;
local_6c = param_3 + 0x98;
local_70 = param_3 + 0xa8;
local_78 = param_3 + 0x28;
local_80 = param_1;
do {
if (param_2 < __src) {
return 0;
}
local_100 = *param_1;
uVar10 = (local_100 & 0xff) << 8 | (local_100 & 0xffff) >> 8;
uVar7 = local_100 >> 0x18;
uVar9 = (local_100 >> 0x10 & 0xff) << 8 | uVar7;
uVar1 = dhcp6optstr(uVar10);
uVar5 = uVar9;
dprintf(7,"dhcp6_get_options","get DHCP option %s, len %d",uVar1,uVar9);
puVar11 = (uint *)((int)__src + uVar9);
if (param_2 < puVar11) {
dprintf(6,"dhcp6_get_options","malformed DHCP options");
goto LAB_0040caa8;
}
switch(uVar10) {
default:
uVar1 = dhcp6optstr(uVar10);
dprintf(6,"dhcp6_get_options","unknown or unexpected DHCP6 option %s, len %d",uVar1,uVar9);
break;
case 1:
if (uVar9 == 0) {
LAB_0040d6c0:
dprintf(6,"dhcp6_get_options","malformed DHCP option: type %d, len %d",uVar10,uVar9);
goto LAB_0040caa8;
}
local_ec = uVar9;
local_e8 = __src;
uVar1 = duidstr(&local_ec);
dprintf(7,""," DUID: %s",uVar1,uVar5);
iVar2 = duidcpy(param_3,&local_ec);
goto joined_r0x0040d370;
case 2:
if (uVar9 == 0) goto LAB_0040d6c0;
local_ec = uVar9;
local_e8 = __src;
uVar1 = duidstr(&local_ec);
dprintf(7,""," DUID: %s",uVar1,uVar5);
iVar2 = duidcpy(local_2c,&local_ec);
joined_r0x0040d370:
if (iVar2 != 0) {
dprintf(3,"dhcp6_get_options","failed to copy DUID");
goto LAB_0040caa8;
}
break;
case 3:
if (uVar9 + 4 < 0x10) goto LAB_0040d6c0;
local_a4 = param_1[1];
local_9c = param_1[3];
local_a0 = param_1[2];
uVar5 = (int)param_1 + 3U & 3;
uVar7 = (uint)param_1 & 3;
in_t5 = (*(int *)((byte *)((int)param_1 + 3U) + -uVar5) << (3 - uVar5) * 8 |
in_t5 & 0xffffffffU >> (uVar5 + 1) * 8) & -1 << (4 - uVar7) * 8 |
*(uint *)((int)param_1 - uVar7) >> uVar7 * 8;
local_e4 = local_a4 << 0x18 | local_a4 >> 0x18 | (local_a4 & 0xff0000) >> 8 |
(local_a4 & 0xff00) << 8;
uVar7 = local_a0 << 0x18 | local_a0 >> 0x18 | (local_a0 & 0xff0000) >> 8 |
(local_a0 & 0xff00) << 8;
uVar5 = local_9c << 0x18 | local_9c >> 0x18 | (local_9c & 0xff0000) >> 8 |
(local_9c & 0xff00) << 8;
local_e0 = uVar7;
local_dc = uVar5;
local_a8 = in_t5;
dprintf(7,""," IA_NA: ID=%lu, T1=%lu, T2=%lu",local_e4,uVar7,uVar5);
iVar2 = dhcp6_find_listval(local_7c,6,&local_e4,0);
if (iVar2 == 0) {
local_f0 = &local_f4;
local_f4 = 0;
iVar2 = FUN_0040c1a8(3,param_1 + 4,puVar11,local_f0);
if (iVar2 != 0) goto LAB_0040caa8;
uVar1 = 6;
iVar2 = local_7c;
LAB_0040d714:
iVar2 = dhcp6_add_listval(iVar2,uVar1,&local_e4,&local_f4);
if (iVar2 == 0) {
dhcp6_clear_list(&local_f4);
goto LAB_0040caa8;
}
dhcp6_clear_list(&local_f4);
}
else {
dprintf(6,"dhcp6_get_options","duplicated IA_NA %lu",local_e4,uVar7,uVar5);
}
break;
case 6:
if (((uVar7 & 1) != 0) || (uVar9 == 0)) goto LAB_0040d6c0;
if (uVar9 / 2 != 0) {
iVar2 = 0;
do {
local_104 = (ushort)*__src;
local_fc = (local_104 & 0xff) << 8 | (uint)(local_104 >> 8);
uVar1 = dhcp6optstr(local_fc);
dprintf(7,""," requested option: %s",uVar1,uVar5);
iVar4 = dhcp6_find_listval(local_34,1,&local_fc,0);
if (iVar4 == 0) {
iVar4 = dhcp6_add_listval(local_34,1,&local_fc,0);
if (iVar4 == 0) {
dprintf(3,"dhcp6_get_options","failed to copy requested option");
goto LAB_0040caa8;
}
}
else {
uVar1 = dhcp6optstr(local_104,1);
dprintf(6,"dhcp6_get_options","duplicated option type (%s)",uVar1);
}
iVar2 = iVar2 + 1;
__src = (uint *)((int)__src + 2);
} while (iVar2 < (int)(uVar9 / 2));
}
break;
case 7:
if (uVar9 != 1) goto LAB_0040d6c0;
dprintf(7,""," preference: %d",(uint)(byte)*__src,uVar5);
if (*(int *)(param_3 + 0x14) == -1) {
*(uint *)(param_3 + 0x14) = (uint)(byte)*__src;
}
else {
dprintf(6,"dhcp6_get_options","duplicated preference option",0x430000,uVar5);
}
break;
case 8:
if (uVar9 != 2) goto LAB_0040d6c0;
uVar7 = ((ushort)*__src & 0xff) << 8 | (uint)(ushort)((ushort)*__src >> 8);
local_106 = (ushort)uVar7;
dprintf(7,""," elapsed time: %lu",uVar7,uVar5);
if (*(int *)(param_3 + 0x1c) == -1) {
*(uint *)(param_3 + 0x1c) = (uint)local_106;
}
else {
dprintf(6,"dhcp6_get_options","duplicated elapsed time option");
}
break;
case 9:
pvVar3 = malloc(uVar9) //possible issue identified - semgrep
*(void **)(param_3 + 0xbc) = pvVar3;
if (pvVar3 == (void *)0x0) goto LAB_0040caa8;
memcpy(pvVar3,__src,uVar9) //possible issue identified - semgrep
*(uint *)(param_3 + 0xb8) = uVar9;
break;
case 0xb:
if (uVar9 < 0xb) goto LAB_0040d6c0;
if (*(int *)(param_3 + 0xcc) != -1) {
dprintf(6,"dhcp6_get_options","found more than one authentication option");
goto LAB_0040caa8;
}
*(int *)(param_3 + 0xcc) = (int)(char)(byte)*__src;
*(int *)(param_3 + 0xd0) = (int)(char)*(byte *)((int)__src + 1);
*(int *)(param_3 + 0xd4) = (int)(char)*(byte *)((int)__src + 2);
uVar1 = *(undefined4 *)((int)__src + 7);
*local_38 = *(undefined4 *)((int)__src + 3);
local_38[1] = uVar1;
builtin_strncpy(local_b8,"unknown(255)",0xd) //possible issue identified - semgrep
builtin_strncpy(local_d8,"unknown(255)",0xd) //possible issue identified - semgrep
builtin_strncpy(local_c8,"unknown(255)",0xd) //possible issue identified - semgrep
builtin_strncpy(local_98,"ffff",4) //possible issue identified - semgrep
uVar5 = *(uint *)(param_3 + 0xcc);
builtin_strncpy(local_98 + 4," ffff ffff ffff",0x10) //possible issue identified - semgrep
pbVar12 = (byte *)((int)__src + 0xb);
if (uVar5 == 2) {
__s_00 = "delayed";
}
else if (uVar5 == 3) {
__s_00 = "reconfig";
}
else {
__s_00 = local_d8;
snprintf(__s_00,0xd,"unknown(%d)",uVar5 & 0xff) //possible issue identified - semgrep
}
if (*(uint *)(param_3 + 0xd0) == 1) {
__s_01 = "HMAC-MD5";
}
else {
__s_01 = local_c8;
snprintf(__s_01,0xd,"unknown(%d)",*(uint *)(param_3 + 0xd0) & 0xff) //possible issue identified - semgrep
}
if (*(int *)(param_3 + 0xd4) == 0) {
__s = "mono counter";
}
else {
__s = local_b8;
snprintf(__s,0xd,"unknown(%d)") //possible issue identified - semgrep
}
snprintf(&DAT_0043ec34,0x400,"proto: %s, alg: %s, RDM: %s, RD: %s",__s_00,__s_01,__s,local_98) //possible issue identified - semgrep
;
dprintf(7,"",&DAT_0042843c,&DAT_0043ec34);
if (*(int *)(param_3 + 0xcc) == 2) {
if (uVar9 == 0xb) {
LAB_0040d638:
*(uint *)(param_3 + 200) = *(uint *)(param_3 + 200) | 1;
}
else {
if (uVar9 - 0xb < 0x14) goto LAB_0040d6c0;
*(uint *)(param_3 + 0xe4) = uVar9 - 0x1f;
pvVar3 = malloc(uVar9 - 0x1f) //possible issue identified - semgrep
*(void **)(param_3 + 0xe8) = pvVar3;
if (pvVar3 == (void *)0x0) {
dprintf(4,"dhcp6_get_options","failed allocate memory for auth realm");
goto LAB_0040caa8;
}
memcpy(pvVar3,pbVar12,*(size_t *)(param_3 + 0xe4)) //possible issue identified - semgrep
pbVar12 = pbVar12 + *(int *)(param_3 + 0xe4);
*local_3c = *(undefined4 *)pbVar12;
uVar5 = *(uint *)(param_3 + 0xe0);
uVar5 = uVar5 << 0x18 | uVar5 >> 0x18 | uVar5 >> 8 & 0xff00 | (uVar5 & 0xff00) << 8;
*(uint *)(param_3 + 0xe0) = uVar5;
*(byte **)(param_3 + 0xec) = pbVar12 + (4 - (int)local_80);
dprintf(7,""," auth key ID: %x, offset=%d, realmlen=%d",uVar5,
pbVar12 + (4 - (int)local_80),*(undefined4 *)(param_3 + 0xe4));
}
}
else {
if (*(int *)(param_3 + 0xcc) != 3) {
dprintf(6,"dhcp6_get_options","unsupported authentication protocol: %d",
(int)(char)*pbVar12);
goto LAB_0040caa8;
}
if (uVar9 == 0xb) goto LAB_0040d638;
uVar10 = (int)(__src + 3) - (int)local_80;
*(int *)(param_3 + 0xe0) = (int)(char)*(byte *)((int)__src + 0xb);
*(uint *)(param_3 + 0xe4) = uVar10;
uVar5 = (int)__src + 0x13U & 3;
iVar2 = *(int *)((byte *)((int)__src + 0x13U) + -uVar5);
uVar8 = __src[6];
uVar7 = (uint)(__src + 4) & 3;
uVar9 = *(uint *)((int)(__src + 4) - uVar7);
uVar6 = __src[5];
*local_40 = __src[3];
local_40[1] = (iVar2 << (3 - uVar5) * 8 | uVar10 & 0xffffffffU >> (uVar5 + 1) * 8) &
-1 << (4 - uVar7) * 8 | uVar9 >> uVar7 * 8;
local_40[2] = uVar6;
local_40[3] = uVar8;
if (*(int *)(param_3 + 0xe0) == 1) {
g_prevrd = *(undefined4 *)(param_3 + 0xd8);
DAT_0043ea04 = *(undefined4 *)(param_3 + 0xdc);
reconfig_key = *local_40;
DAT_00441264 = local_40[1];
DAT_00441268 = local_40[2];
DAT_0044126c = local_40[3];
}
}
break;
case 0xd:
if (uVar9 < 2) goto LAB_0040d6c0;
local_106 = (ushort)*__src;
uVar7 = (local_106 & 0xff) << 8 | (uint)(local_106 >> 8);
local_108 = (undefined2)uVar7;
uVar1 = dhcp6_stcodestr(uVar7);
dprintf(7,""," status code: %s",uVar1,uVar5);
iVar2 = dhcp6_add_listval(local_30,2,&local_108,0);
if (iVar2 == 0) {
dprintf(3,"dhcp6_get_options","failed to copy status code");
goto LAB_0040caa8;
}
break;
case 0xe:
if (uVar9 != 0) goto LAB_0040d6c0;
*(undefined4 *)(param_3 + 0x10) = 1;
break;
case 0x12:
pvVar3 = malloc(uVar9) //possible issue identified - semgrep
*(void **)(param_3 + 0xc4) = pvVar3;
if (pvVar3 == (void *)0x0) goto LAB_0040caa8;
memcpy(pvVar3,__src,uVar9) //possible issue identified - semgrep
*(uint *)(param_3 + 0xc0) = uVar9;
break;
case 0x13:
if (uVar9 != 1) goto LAB_0040d6c0;
dprintf(7,""," reconfigure type: %d",(uint)(byte)*__src,uVar5);
*(int *)(param_3 + 0x18) = (int)(char)(byte)*__src;
break;
case 0x15:
uVar1 = 0x15;
iVar2 = local_44;
goto LAB_0040caf8;
case 0x16:
uVar1 = 0x16;
iVar2 = local_5c;
goto LAB_0040ca90;
case 0x17:
uVar1 = 0x17;
iVar2 = local_64;
goto LAB_0040ca90;
case 0x18:
uVar1 = 0x18;
iVar2 = local_4c;
goto LAB_0040caf8;
case 0x19:
if (uVar9 + 4 < 0x10) goto LAB_0040d6c0;
local_a4 = param_1[1];
local_9c = param_1[3];
local_a0 = param_1[2];
uVar5 = (int)param_1 + 3U & 3;
uVar7 = (uint)param_1 & 3;
in_t5 = (*(int *)((byte *)((int)param_1 + 3U) + -uVar5) << (3 - uVar5) * 8 |
in_t5 & 0xffffffffU >> (uVar5 + 1) * 8) & -1 << (4 - uVar7) * 8 |
*(uint *)((int)param_1 - uVar7) >> uVar7 * 8;
local_e4 = local_a4 << 0x18 | local_a4 >> 0x18 | (local_a4 & 0xff0000) >> 8 |
(local_a4 & 0xff00) << 8;
uVar7 = local_a0 << 0x18 | local_a0 >> 0x18 | (local_a0 & 0xff0000) >> 8 |
(local_a0 & 0xff00) << 8;
uVar5 = local_9c << 0x18 | local_9c >> 0x18 | (local_9c & 0xff0000) >> 8 |
(local_9c & 0xff00) << 8;
local_e0 = uVar7;
local_dc = uVar5;
local_a8 = in_t5;
dprintf(7,""," IA_PD: ID=%lu, T1=%lu, T2=%lu",local_e4,uVar7,uVar5);
iVar2 = dhcp6_find_listval(local_78,4,&local_e4,0);
if (iVar2 == 0) {
local_f0 = &local_f4;
local_f4 = 0;
iVar2 = FUN_0040c1a8(0x19,param_1 + 4,puVar11,local_f0);
if (iVar2 != 0) goto LAB_0040caa8;
uVar1 = 4;
iVar2 = local_78;
goto LAB_0040d714;
}
dprintf(6,"dhcp6_get_options","duplicated IA_PD %lu",local_e4,uVar7,uVar5);
break;
case 0x1b:
uVar1 = 0x1b;
iVar2 = local_68;
goto LAB_0040ca90;
case 0x1c:
uVar1 = 0x1c;
iVar2 = local_6c;
goto LAB_0040ca90;
case 0x1d:
uVar1 = 0x1d;
iVar2 = local_50;
goto LAB_0040caf8;
case 0x1e:
uVar1 = 0x1e;
iVar2 = local_54;
goto LAB_0040caf8;
case 0x1f:
uVar1 = 0x1f;
iVar2 = local_74;
goto LAB_0040ca90;
case 0x20:
if (uVar9 != 4) goto LAB_0040d6c0;
uVar7 = *__src;
local_f8 = uVar7 << 0x18 | uVar7 >> 0x18 | uVar7 >> 8 & 0xff00 | (uVar7 & 0xff00) << 8;
dprintf(7,""," information refresh time: %lu",local_f8,uVar5);
if (local_f8 < 600) {
dprintf(6,"dhcp6_get_options","refresh time is too small (%d), adjusted",local_f8,uVar5);
iVar2 = *(int *)(param_3 + 0x20);
local_f8 = 600;
}
else {
iVar2 = *(int *)(param_3 + 0x20);
}
if ((iVar2 == -1) && (*(int *)(param_3 + 0x24) == -1)) {
*(undefined4 *)(param_3 + 0x24) = 0;
*(uint *)(param_3 + 0x20) = local_f8;
}
else {
dprintf(6,"dhcp6_get_options","duplicated refresh time option");
}
break;
case 0x21:
uVar1 = 0x21;
iVar2 = local_58;
goto LAB_0040caf8;
case 0x22:
uVar1 = 0x22;
iVar2 = local_70;
goto LAB_0040ca90;
case 0x40:
uVar1 = 0x40;
iVar2 = local_48;
LAB_0040caf8:
iVar2 = FUN_0040b1a0(uVar9,__src,uVar1,iVar2);
goto joined_r0x0040caa0;
case 0x62:
uVar1 = 0x62;
iVar2 = local_60;
LAB_0040ca90:
iVar2 = FUN_0040c004(uVar9,__src,uVar1,iVar2);
joined_r0x0040caa0:
if (iVar2 == -1) {
LAB_0040caa8:
dhcp6_clear_options(param_3);
return 0xffffffff;
}
}
__src = puVar11 + 1;
param_1 = puVar11;
} while( true );
}
