diff options
| author | Justus Winter <justus@gnupg.org> | 2016-11-05 18:41:13 +0100 |
|---|---|---|
| committer | Justus Winter <justus@gnupg.org> | 2016-11-05 18:47:09 +0100 |
| commit | 54c6736341bda9564a028ad3d61d46488e53b8a6 (patch) | |
| tree | 0e27d98a6ace8074b63a5ab60576c292ffbd529b /eth-multiplexer/ethernet.h | |
| parent | 115695afe34e5253816ff0e828054f8c07e2ddbd (diff) | |
eth-multiplexer: Generate stable ethernet addresses.
Previously, the ethernet multiplexer generated ethernet addresses for
the virtual interfaces using a pseudo-random number generator. This
has the downside of generating a new address every time. Generate
stable pseudo-random addresses instead.
* eth-multiplexer/Makefile (HURDLIBS): Link to libihash.
* eth-multiplexer/ethernet.c (ether_address): New variable.
(get_ethernet_address): New function.
(ethernet_open): Get the ethernet address of the real interface.
* eth-multiplexer/ethernet.h (ether_address): New declaration.
* eth-multiplexer/vdev.c (add_vdev): Compute the ethernet address by
hashing the address of the real interface with the name of the virtual
interface.
Diffstat (limited to 'eth-multiplexer/ethernet.h')
| -rw-r--r-- | eth-multiplexer/ethernet.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/eth-multiplexer/ethernet.h b/eth-multiplexer/ethernet.h index 8efab9b1..a2b2f5ee 100644 --- a/eth-multiplexer/ethernet.h +++ b/eth-multiplexer/ethernet.h @@ -23,10 +23,12 @@ #ifndef ETHERNET_H #define ETHERNET_H +#include <mach.h> +#include <net/if_ether.h> #include <netinet/in.h> -#include <stdlib.h> extern mach_port_t ether_port; +extern char ether_address[ETH_ALEN]; int ethernet_open (char *dev_name, device_t master_device, struct port_bucket *etherport_bucket, |