diff options
Diffstat (limited to 'shared/n-dhcp4/src/n-dhcp4-socket.c')
| -rw-r--r-- | shared/n-dhcp4/src/n-dhcp4-socket.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/shared/n-dhcp4/src/n-dhcp4-socket.c b/shared/n-dhcp4/src/n-dhcp4-socket.c index c7e89772..7291c780 100644 --- a/shared/n-dhcp4/src/n-dhcp4-socket.c +++ b/shared/n-dhcp4/src/n-dhcp4-socket.c @@ -50,8 +50,8 @@ int n_dhcp4_c_socket_packet_new(int *sockfdp, int ifindex) { BPF_JUMP(BPF_JMP + BPF_JEQ + BPF_K, IPPROTO_UDP, 1, 0), /* IP protocol == UDP ? */ BPF_STMT(BPF_RET + BPF_K, 0), /* ignore */ - BPF_STMT(BPF_LD + BPF_B + BPF_ABS, offsetof(struct iphdr, frag_off)), /* A <- Flags */ - BPF_STMT(BPF_ALU + BPF_AND + BPF_K, ntohs(IP_MF | IP_OFFMASK)), /* A <- A & (IP_MF | IP_OFFMASK) */ + BPF_STMT(BPF_LD + BPF_H + BPF_ABS, offsetof(struct iphdr, frag_off)), /* A <- Flags + Fragment offset */ + BPF_STMT(BPF_ALU + BPF_AND + BPF_K, IP_MF | IP_OFFMASK), /* A <- A & (IP_MF | IP_OFFMASK) */ BPF_JUMP(BPF_JMP + BPF_JEQ + BPF_K, 0, 1, 0), /* fragmented packet ? */ BPF_STMT(BPF_RET + BPF_K, 0), /* ignore */ |