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| author | Stefano Brivio <sbrivio@redhat.com> | 2023-02-16 01:53:30 +0100 |
|---|---|---|
| committer | Stefano Brivio <sbrivio@redhat.com> | 2023-02-16 17:33:57 +0100 |
| commit | 77a6d976aa4571427ba832226a3232f92bfd169f (patch) | |
| tree | 8a523cf4b20ea82282c5dc879f5b238d8edee7cf /util.h | |
| parent | 7564b58a7f27bd926b0ce76b4fda145dca2d15dd (diff) | |
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dhcp: Fix netmask calculation for option 1 from prefix length
Similar to the conf_print() fix from commit 4129764ecaeb ("conf: Fix
mask calculation from prefix_len in conf_print()"): to calculate an
IPv4 netmask from the prefix length, we need to left shift 32 all-one
bits by 32 minus the prefix length -- not by the prefix length
itself.
Reported-by: Yalan Zhang <yalzhang@redhat.com>
Fixes: dd09cceaee21 ("Minor improvements to IPv4 netmask handling")
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'util.h')
0 files changed, 0 insertions, 0 deletions