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| author | Paul Moore <paul.moore@hp.com> | 2006-08-03 16:46:20 -0700 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2006-09-22 14:53:32 -0700 |
| commit | 11a03f78fbf15a866ba3bf6359a75cdfd1ced703 (patch) | |
| tree | 49c4c35124c05826a940fba6633dd815985cf8a9 /net/ipv4/ip_options.c | |
| parent | 8802f616f6de8576805f32e47602816f141118f2 (diff) | |
| download | lwn-11a03f78fbf15a866ba3bf6359a75cdfd1ced703.tar.gz lwn-11a03f78fbf15a866ba3bf6359a75cdfd1ced703.zip | |
[NetLabel]: core network changes
Changes to the core network stack to support the NetLabel subsystem. This
includes changes to the IPv4 option handling to support CIPSO labels.
Signed-off-by: Paul Moore <paul.moore@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/ip_options.c')
| -rw-r--r-- | net/ipv4/ip_options.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/net/ipv4/ip_options.c b/net/ipv4/ip_options.c index 406056edc02b..e0a93b4fa8cc 100644 --- a/net/ipv4/ip_options.c +++ b/net/ipv4/ip_options.c @@ -24,6 +24,7 @@ #include <net/ip.h> #include <net/icmp.h> #include <net/route.h> +#include <net/cipso_ipv4.h> /* * Write options to IP header, record destination address to @@ -194,6 +195,13 @@ int ip_options_echo(struct ip_options * dopt, struct sk_buff * skb) dopt->is_strictroute = sopt->is_strictroute; } } + if (sopt->cipso) { + optlen = sptr[sopt->cipso+1]; + dopt->cipso = dopt->optlen+sizeof(struct iphdr); + memcpy(dptr, sptr+sopt->cipso, optlen); + dptr += optlen; + dopt->optlen += optlen; + } while (dopt->optlen & 3) { *dptr++ = IPOPT_END; dopt->optlen++; @@ -434,6 +442,17 @@ int ip_options_compile(struct ip_options * opt, struct sk_buff * skb) if (optptr[2] == 0 && optptr[3] == 0) opt->router_alert = optptr - iph; break; + case IPOPT_CIPSO: + if (opt->cipso) { + pp_ptr = optptr; + goto error; + } + opt->cipso = optptr - iph; + if (cipso_v4_validate(&optptr)) { + pp_ptr = optptr; + goto error; + } + break; case IPOPT_SEC: case IPOPT_SID: default: |