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Update documentation and remove unused ioctl.h header.

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This commit is contained in:
Nicholas J. Kain 2014-03-16 21:16:06 -04:00
parent 8a24f74a11
commit 1ff3adef3a
2 changed files with 8 additions and 7 deletions
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14
README
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@ -160,8 +160,8 @@ esac
exactly as I have outlined above. If you have not entirely followed my exactly as I have outlined above. If you have not entirely followed my
directions, the script will of course require modifications. directions, the script will of course require modifications.
4o) If you encounter problems, I suggest running both ndhc in the foreground 4o) If you encounter problems, I suggest running ndhc in the foreground and
and examining the printed output. examining the printed output.
BEHAVIOR NOTES BEHAVIOR NOTES
@ -185,11 +185,10 @@ part of the official standard, so any implemention that may exist will be
system-dependent. system-dependent.
2) ndhc configures network interfaces and routes. Interface and route 2) ndhc configures network interfaces and routes. Interface and route
configuration is entirely non-portable, usually requiring calls to the configuration is entirely non-portable.
catch-all ioctl(), or even more unusual mechanisms like netlink sockets.
3) ndhc uses netlink sockets extensively for both fetching data and hardware 3) ndhc uses netlink sockets extensively for fetching data, setting data,
link state change notification events. and hardware link state change notification events.
4) ndhc uses the Berkeley Packet Filter / Linux Packet Filter interfaces to 4) ndhc uses the Berkeley Packet Filter / Linux Packet Filter interfaces to
drop unwanted packets in kernelspace. This functionality is available on drop unwanted packets in kernelspace. This functionality is available on
@ -200,6 +199,9 @@ most modern unix systems, but it is not standard.
6) Numerous socket options are used, and the AF_PACKET socket family is used 6) Numerous socket options are used, and the AF_PACKET socket family is used
for raw sockets and ARP. These are largely Linux-specific, too. for raw sockets and ARP. These are largely Linux-specific, too.
7) ndhc can optionally use seccomp-filter to allow only a set of whitelisted
syscalls. This functionality is Linux-specific.
HISTORY HISTORY
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1
ndhc/ifset.c
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@ -35,7 +35,6 @@
#include <sys/socket.h> #include <sys/socket.h>
#include <sys/un.h> #include <sys/un.h>
#include <sys/types.h> #include <sys/types.h>
#include <sys/ioctl.h>
#include <netinet/in.h> #include <netinet/in.h>
#include <arpa/inet.h> #include <arpa/inet.h>
#include <net/route.h> #include <net/route.h>