On 04/17/2013 06:47 PM, Patrick McHardy wrote:
Signed-off-by: Patrick McHardy <kaber@xxxxxxxxx>
---
[...]
+Ring frames
+------------
+
+Each frames contain a frame header, consisting of a synchronization word and some
+meta-data, and the message itself.
+
+Frame: [ header message ]
+
+The frame header is defined as follows:
+
+struct nl_mmap_hdr {
+ unsigned int nm_status;
+ unsigned int nm_len;
+ __u32 nm_group;
+ /* credentials */
+ __u32 nm_pid;
+ __u32 nm_uid;
+ __u32 nm_gid;
+};
Hm, just wondering, maybe it could be a safer path to make 'nm_status'
and 'nm_len' also of fixed width as the rest of nl_mmap_hdr, and as in
PF_PACKET's tpacket2_hdr and tpacket3_hdr ?
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