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test: eth: IPv6 network discovery unit test

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Test router advertisement validation and processing functions.

Signed-off-by: Ehsan Mohandesi <emohandesi@linux.microsoft.com>
Reviewed-by: Viacheslav Mitrofanov <v.v.mitrofanov@yadro.com>
This commit is contained in:
Ehsan Mohandesi 2023-04-21 17:08:23 -07:00 committed by Tom Rini
parent eafbe16b01
commit 4c516807f4
1 changed files with 88 additions and 0 deletions
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88
test/dm/eth.c
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@ -20,6 +20,7 @@
#include <dm/uclass-internal.h>
#include <test/test.h>
#include <test/ut.h>
#include <ndisc.h>
#define DM_TEST_ETH_NUM 4
@ -607,3 +608,90 @@ static int dm_test_eth_async_ping_reply(struct unit_test_state *uts)
}
DM_TEST(dm_test_eth_async_ping_reply, UT_TESTF_SCAN_FDT);
#if IS_ENABLED(CONFIG_IPV6_ROUTER_DISCOVERY)
static u8 ip6_ra_buf[] = {0x60, 0xf, 0xc5, 0x4a, 0x0, 0x38, 0x3a, 0xff, 0xfe,
0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6, 0x85, 0xe6,
0x29, 0x77, 0xcb, 0xc8, 0x53, 0xff, 0x2, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x1, 0x86, 0x0, 0xdc, 0x90, 0x40, 0x80, 0x15, 0x18,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x4,
0x40, 0xc0, 0x0, 0x0, 0x37, 0xdc, 0x0, 0x0, 0x37,
0x78, 0x0, 0x0, 0x0, 0x0, 0x20, 0x1, 0xca, 0xfe, 0xca,
0xfe, 0xca, 0xfe, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x1, 0x1, 0x0, 0x15, 0x5d, 0xe2, 0x8a, 0x2};
static int dm_test_validate_ra(struct unit_test_state *uts)
{
struct ip6_hdr *ip6 = (struct ip6_hdr *)ip6_ra_buf;
struct icmp6hdr *icmp = (struct icmp6hdr *)(ip6 + 1);
__be16 temp = 0;
ut_assert(validate_ra(ip6) == true);
temp = ip6->payload_len;
ip6->payload_len = 15;
ut_assert(validate_ra(ip6) == false);
ip6->payload_len = temp;
temp = ip6->saddr.s6_addr16[0];
ip6->saddr.s6_addr16[0] = 0x2001;
ut_assert(validate_ra(ip6) == false);
ip6->saddr.s6_addr16[0] = temp;
temp = ip6->hop_limit;
ip6->hop_limit = 15;
ut_assert(validate_ra(ip6) == false);
ip6->hop_limit = temp;
temp = icmp->icmp6_code;
icmp->icmp6_code = 15;
ut_assert(validate_ra(ip6) == false);
icmp->icmp6_code = temp;
return 0;
}
DM_TEST(dm_test_validate_ra, 0);
static int dm_test_process_ra(struct unit_test_state *uts)
{
int len = sizeof(ip6_ra_buf);
struct ip6_hdr *ip6 = (struct ip6_hdr *)ip6_ra_buf;
struct icmp6hdr *icmp = (struct icmp6hdr *)(ip6 + 1);
struct ra_msg *msg = (struct ra_msg *)icmp;
unsigned char *option = msg->opt;
struct icmp6_ra_prefix_info *prefix =
(struct icmp6_ra_prefix_info *)option;
__be16 temp = 0;
unsigned char option_len = option[1];
ut_assert(process_ra(ip6, len) == 0);
temp = icmp->icmp6_rt_lifetime;
icmp->icmp6_rt_lifetime = 0;
ut_assert(process_ra(ip6, len) != 0);
icmp->icmp6_rt_lifetime = temp;
ut_assert(process_ra(ip6, 0) != 0);
option[1] = 0;
ut_assert(process_ra(ip6, len) != 0);
option[1] = option_len;
prefix->on_link = false;
ut_assert(process_ra(ip6, len) != 0);
prefix->on_link = true;
temp = prefix->prefix.s6_addr16[0];
prefix->prefix.s6_addr16[0] = 0x80fe;
ut_assert(process_ra(ip6, len) != 0);
prefix->prefix.s6_addr16[0] = temp;
return 0;
}
DM_TEST(dm_test_process_ra, 0);
#endif