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authorDimitri Staessens <dimitri.staessens@ugent.be>2018-03-10 10:09:08 +0100
committerSander Vrijders <sander.vrijders@ugent.be>2018-03-10 13:16:06 +0100
commit2936dd5e4232f7d7d9c720d89bb4a696abcd1830 (patch)
treee4d755789542da32c1720636bc1065a3a6b62c74 /src/lib
parent9b6fdc1c2abe85008610063d800edf80e5011a4d (diff)
downloadouroboros-2936dd5e4232f7d7d9c720d89bb4a696abcd1830.tar.gz
ouroboros-2936dd5e4232f7d7d9c720d89bb4a696abcd1830.zip
ipcpd: Add IPCP over DIX Ethernet
This adds an IPC Process that uses DIX Ethernet with an Ethertype that is configurable at bootstrap. This allows parallel DIX layers over the same Ethernet network with different Ethertypes (and one LLC layer). It allows jumbo frames in the future, and should avoid the problems we have with some routers not handling LLC traffic very well. The destination endpoint ID is sent as a 16 bit integer, so the maximum payload is 1498 bytes in standard Ethernet, and 8998 bytes when Jumbo frames are used. The implementation is very similar to the Ethernet LLC IPCP, so it is implemented using preprocessor macros in the single source instead of duplicating code. Signed-off-by: Dimitri Staessens <dimitri.staessens@ugent.be> Signed-off-by: Sander Vrijders <sander.vrijders@ugent.be>
Diffstat (limited to 'src/lib')
-rw-r--r--src/lib/ipcp_config.proto6
-rw-r--r--src/lib/irm.c7
2 files changed, 10 insertions, 3 deletions
diff --git a/src/lib/ipcp_config.proto b/src/lib/ipcp_config.proto
index 3e656d42..44391f36 100644
--- a/src/lib/ipcp_config.proto
+++ b/src/lib/ipcp_config.proto
@@ -40,8 +40,10 @@ message ipcp_config_msg {
// Config for UDP
optional uint32 ip_addr = 9;
optional uint32 dns_addr = 10;
- // Config for the Ethernet LLC
- optional string if_name = 11;
+ // Config for the Ethernet
+ optional string dev = 11;
+ // Config for DIX Ethernet
+ optional uint32 ethertype = 12;
}
enum enroll_code {
diff --git a/src/lib/irm.c b/src/lib/irm.c
index 66b5c849..c12ab893 100644
--- a/src/lib/irm.c
+++ b/src/lib/irm.c
@@ -139,7 +139,12 @@ int irm_bootstrap_ipcp(pid_t pid,
case IPCP_RAPTOR:
break;
case IPCP_ETH_LLC:
- config.if_name = conf->if_name;
+ config.dev = conf->dev;
+ break;
+ case IPCP_ETH_DIX:
+ config.dev = conf->dev;
+ config.has_ethertype = true;
+ config.ethertype = conf->ethertype;
break;
default:
return -EIPCPTYPE;