Hi Viacheslav, On Tue, 30 Aug 2022 at 07:03, Viacheslav Mitrofanov <[email protected]> wrote: > > Test checksum computation. csum_ipv6_magic() uses in upper layer > protocols as TCP/UDP/ICMPv6/etc to calculate payload checksum. > > Signed-off-by: Viacheslav Mitrofanov <[email protected]> > --- > test/dm/eth.c | 29 +++++++++++++++++++++++++++++ > 1 file changed, 29 insertions(+)
Reviewed-by: Simon Glass <[email protected]> > > diff --git a/test/dm/eth.c b/test/dm/eth.c > index 4cc90cf514..bbfa14ef6d 100644 > --- a/test/dm/eth.c > +++ b/test/dm/eth.c > @@ -70,6 +70,35 @@ static int dm_test_string_to_ip6(struct unit_test_state > *uts) > } > DM_TEST(dm_test_string_to_ip6, 0); > > +static int dm_test_csum_ipv6_magic(struct unit_test_state *uts) > +{ > + unsigned short csum = 0xBEEF; lower-case hex consistently > + /* Predefined correct parameters */ > + unsigned short correct_csum = 0xD8AC; > + struct in6_addr saddr = {.s6_addr32[0] = 0x000080fe, > + .s6_addr32[1] = 0x00000000, > + .s6_addr32[2] = 0xffe9f242, > + .s6_addr32[3] = 0xe8f66dfe}; > + struct in6_addr daddr = {.s6_addr32[0] = 0x000080fe, > + .s6_addr32[1] = 0x00000000, > + .s6_addr32[2] = 0xffd5b372, > + .s6_addr32[3] = 0x3ef692fe}; > + u16 len = 1460; > + unsigned short proto = 17; > + unsigned int head_csum = 0x91f0; > + > + csum = csum_ipv6_magic(&saddr, &daddr, len, proto, head_csum); > + ut_assert(csum == correct_csum); ut_asserteq > + > + /* Broke a parameter */ > + proto--; > + csum = csum_ipv6_magic(&saddr, &daddr, len, proto, head_csum); > + ut_assert(csum != correct_csum); > + > + return 0; > +} > +DM_TEST(dm_test_csum_ipv6_magic, 0); > + > static int dm_test_eth(struct unit_test_state *uts) > { > net_ping_ip = string_to_ip("1.1.2.2"); > -- > 2.25.1 > Regards, Simon
