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[UDP]: Allow users to configure UDP-Lite.

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Let's give users an option for disabling UDP-Lite (~4K).

old:
|    text	   data	    bss	    dec	    hex	filename
|  286498	  12432	   6072	 305002	  4a76a	net/ipv4/built-in.o
|  193830	   8192	   3204	 205226	  321aa	net/ipv6/ipv6.o

new (without UDP-Lite):
|    text	   data	    bss	    dec	    hex	filename
|  284086	  12136	   5432	 301654	  49a56	net/ipv4/built-in.o
|  191835	   7832	   3076	 202743	  317f7	net/ipv6/ipv6.o

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
This commit is contained in:
YOSHIFUJI Hideaki
2008-03-01 01:06:47 +09:00
parent c6aefafb7e
commit e898d4db27
14 changed files with 99 additions and 25 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
net/ipv6/ipv6_sockglue.c
View File

@@ -239,7 +239,9 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname,
struct sk_buff *pktopt;
if (sk->sk_protocol != IPPROTO_UDP &&
#ifdef CONFIG_IP_UDPLITE
sk->sk_protocol != IPPROTO_UDPLITE &&
#endif
sk->sk_protocol != IPPROTO_TCP)
break;
@@ -279,7 +281,7 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname,
} else {
struct proto *prot = &udp_prot;
if (sk->sk_protocol == IPPROTO_UDPLITE)
if (IS_PROTO_UDPLITE(sk->sk_protocol))
prot = &udplite_prot;
local_bh_disable();
sock_prot_inuse_add(sk->sk_prot, -1);
@@ -844,7 +846,9 @@ static int do_ipv6_getsockopt(struct sock *sk, int level, int optname,
switch (optname) {
case IPV6_ADDRFORM:
if (sk->sk_protocol != IPPROTO_UDP &&
#ifdef CONFIG_IP_UDPLITE
sk->sk_protocol != IPPROTO_UDPLITE &&
#endif
sk->sk_protocol != IPPROTO_TCP)
return -EINVAL;
if (sk->sk_state != TCP_ESTABLISHED)