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Dan reported:
The patch acda655fefae: "selftests: Add nettest" from Aug 1, 2019,
leads to the following static checker warning:
./tools/testing/selftests/net/nettest.c:1690 main()
warn: unsigned 'tmp' is never less than zero.
./tools/testing/selftests/net/nettest.c
1680 case '1':
1681 args.has_expected_raddr = 1;
1682 if (convert_addr(&args, optarg,
1683 ADDR_TYPE_EXPECTED_REMOTE))
1684 return 1;
1685
1686 break;
1687 case '2':
1688 if (str_to_uint(optarg, 0, 0x7ffffff, &tmp) != 0) {
1689 tmp = get_ifidx(optarg);
1690 if (tmp < 0) {
"tmp" is unsigned so it can't be negative. Also all the callers assume
that get_ifidx() returns negatives on error but it looks like it really
returns zero on error so it's a bit unclear to me.
Update get_ifidx to return -1 on errors and cleanup callers of it.
Fixes: acda655fefae ("selftests: Add nettest")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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There is a spelling mistake in an error messgae. Fix it.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add nettest - a simple program with an implementation for various networking
APIs. nettest is used for tcp, udp and raw functional tests for both IPv4
and IPv6.
Point of this command versus existing utilities:
- controlled implementation of the APIs and the order in which they
are called,
- ability to verify ingress device, local and remote addresses,
- timeout for controlled test length,
- ability to discriminate a timeout from a system call failure, and
- simplicity with test scripts.
The command returns:
0 on success,
1 for any system call failure, and
2 on timeout.
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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David Ahern
Colin Ian King