Re: [PATCH 1/2] checkpolicy: perform contiguous check in host byte order

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On Wed, May 8, 2024 at 1:04 PM Christian Göttsche
<cgoettsche@xxxxxxxxxxxxx> wrote:
>
> From: Christian Göttsche <cgzones@xxxxxxxxxxxxxx>
>
> The contiguous check for network masks requires host byte order on the
> underlying integers.
> Convert from network byte order to avoid wrong warnings.
>
> Fixes: 01b88ac3 ("checkpolicy: warn on bogus IP address or netmask in nodecon statement")
> Signed-off-by: Christian Göttsche <cgzones@xxxxxxxxxxxxxx>

For these two patches:
Acked-by: James Carter <jwcart2@xxxxxxxxx>

> ---
>  checkpolicy/policy_define.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/checkpolicy/policy_define.c b/checkpolicy/policy_define.c
> index aa2ac2e6..9671906f 100644
> --- a/checkpolicy/policy_define.c
> +++ b/checkpolicy/policy_define.c
> @@ -5292,7 +5292,7 @@ int define_ipv4_node_context(void)
>
>         free(id);
>
> -       if (mask.s_addr != 0 && ((~mask.s_addr + 1) & ~mask.s_addr) != 0) {
> +       if (mask.s_addr != 0 && ((~be32toh(mask.s_addr) + 1) & ~be32toh(mask.s_addr)) != 0) {
>                 yywarn("ipv4 mask is not contiguous");
>         }
>
> --
> 2.43.0
>
>





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