From b0573dea1fb32ebc72ffa05980fd840df1d80860 Mon Sep 17 00:00:00 2001 From: Patrick McHardy Date: Tue, 9 Aug 2005 19:30:51 -0700 Subject: [PATCH] [NET]: Introduce SO_{SND,RCV}BUFFORCE socket options Allows overriding of sysctl_{wmem,rmrm}_max Signed-off-by: Patrick McHardy Signed-off-by: David S. Miller --- include/asm-alpha/socket.h | 2 ++ include/asm-arm/socket.h | 2 ++ include/asm-arm26/socket.h | 2 ++ include/asm-cris/socket.h | 2 ++ include/asm-frv/socket.h | 2 ++ include/asm-h8300/socket.h | 2 ++ include/asm-i386/socket.h | 2 ++ include/asm-ia64/socket.h | 2 ++ include/asm-m32r/socket.h | 2 ++ include/asm-m68k/socket.h | 2 ++ include/asm-mips/socket.h | 2 ++ include/asm-parisc/socket.h | 2 ++ include/asm-ppc/socket.h | 2 ++ include/asm-ppc64/socket.h | 2 ++ include/asm-s390/socket.h | 2 ++ include/asm-sh/socket.h | 2 ++ include/asm-sparc/socket.h | 2 ++ include/asm-sparc64/socket.h | 2 ++ include/asm-v850/socket.h | 2 ++ include/asm-x86_64/socket.h | 2 ++ include/asm-xtensa/socket.h | 2 ++ net/core/sock.c | 18 ++++++++++++++++-- 22 files changed, 58 insertions(+), 2 deletions(-) diff --git a/include/asm-alpha/socket.h b/include/asm-alpha/socket.h index d00259d3dc78..b5193229132a 100644 --- a/include/asm-alpha/socket.h +++ b/include/asm-alpha/socket.h @@ -25,6 +25,8 @@ #define SO_ERROR 0x1007 #define SO_SNDBUF 0x1001 #define SO_RCVBUF 0x1002 +#define SO_SNDBUFFORCE 0x100a +#define SO_RCVBUFFORCE 0x100b #define SO_RCVLOWAT 0x1010 #define SO_SNDLOWAT 0x1011 #define SO_RCVTIMEO 0x1012 diff --git a/include/asm-arm/socket.h b/include/asm-arm/socket.h index 46d20585d951..3c51da6438c9 100644 --- a/include/asm-arm/socket.h +++ b/include/asm-arm/socket.h @@ -14,6 +14,8 @@ #define SO_BROADCAST 6 #define SO_SNDBUF 7 #define SO_RCVBUF 8 +#define SO_SNDBUFFORCE 32 +#define SO_RCVBUFFORCE 33 #define SO_KEEPALIVE 9 #define SO_OOBINLINE 10 #define SO_NO_CHECK 11 diff --git a/include/asm-arm26/socket.h b/include/asm-arm26/socket.h index 46d20585d951..3c51da6438c9 100644 --- a/include/asm-arm26/socket.h +++ b/include/asm-arm26/socket.h @@ -14,6 +14,8 @@ #define SO_BROADCAST 6 #define SO_SNDBUF 7 #define SO_RCVBUF 8 +#define SO_SNDBUFFORCE 32 +#define SO_RCVBUFFORCE 33 #define SO_KEEPALIVE 9 #define SO_OOBINLINE 10 #define SO_NO_CHECK 11 diff --git a/include/asm-cris/socket.h b/include/asm-cris/socket.h index f159b4f165f7..8b1da3e58c55 100644 --- a/include/asm-cris/socket.h +++ b/include/asm-cris/socket.h @@ -16,6 +16,8 @@ #define SO_BROADCAST 6 #define SO_SNDBUF 7 #define SO_RCVBUF 8 +#define SO_SNDBUFFORCE 32 +#define SO_RCVBUFFORCE 33 #define SO_KEEPALIVE 9 #define SO_OOBINLINE 10 #define SO_NO_CHECK 11 diff --git a/include/asm-frv/socket.h b/include/asm-frv/socket.h index c3be17c7de4b..7177f8b9817c 100644 --- a/include/asm-frv/socket.h +++ b/include/asm-frv/socket.h @@ -14,6 +14,8 @@ #define SO_BROADCAST 6 #define SO_SNDBUF 7 #define SO_RCVBUF 8 +#define SO_SNDBUFFORCE 32 +#define SO_RCVBUFFORCE 33 #define SO_KEEPALIVE 9 #define SO_OOBINLINE 10 #define SO_NO_CHECK 11 diff --git a/include/asm-h8300/socket.h b/include/asm-h8300/socket.h index af33b8525dcf..d98cf85bafc1 100644 --- a/include/asm-h8300/socket.h +++ b/include/asm-h8300/socket.h @@ -14,6 +14,8 @@ #define SO_BROADCAST 6 #define SO_SNDBUF 7 #define SO_RCVBUF 8 +#define SO_SNDBUFFORCE 32 +#define SO_RCVBUFFORCE 33 #define SO_KEEPALIVE 9 #define SO_OOBINLINE 10 #define SO_NO_CHECK 11 diff --git a/include/asm-i386/socket.h b/include/asm-i386/socket.h index 07f6b38ad140..802ae76195b7 100644 --- a/include/asm-i386/socket.h +++ b/include/asm-i386/socket.h @@ -14,6 +14,8 @@ #define SO_BROADCAST 6 #define SO_SNDBUF 7 #define SO_RCVBUF 8 +#define SO_SNDBUFFORCE 32 +#define SO_RCVBUFFORCE 33 #define SO_KEEPALIVE 9 #define SO_OOBINLINE 10 #define SO_NO_CHECK 11 diff --git a/include/asm-ia64/socket.h b/include/asm-ia64/socket.h index 21a9f10d6baa..a255006fb7b5 100644 --- a/include/asm-ia64/socket.h +++ b/include/asm-ia64/socket.h @@ -23,6 +23,8 @@ #define SO_BROADCAST 6 #define SO_SNDBUF 7 #define SO_RCVBUF 8 +#define SO_SNDBUFFORCE 32 +#define SO_RCVBUFFORCE 33 #define SO_KEEPALIVE 9 #define SO_OOBINLINE 10 #define SO_NO_CHECK 11 diff --git a/include/asm-m32r/socket.h b/include/asm-m32r/socket.h index 159519d99042..8b6680f223c0 100644 --- a/include/asm-m32r/socket.h +++ b/include/asm-m32r/socket.h @@ -14,6 +14,8 @@ #define SO_BROADCAST 6 #define SO_SNDBUF 7 #define SO_RCVBUF 8 +#define SO_SNDBUFFORCE 32 +#define SO_RCVBUFFORCE 33 #define SO_KEEPALIVE 9 #define SO_OOBINLINE 10 #define SO_NO_CHECK 11 diff --git a/include/asm-m68k/socket.h b/include/asm-m68k/socket.h index 8d0b9fc2d07e..f578ca4b776a 100644 --- a/include/asm-m68k/socket.h +++ b/include/asm-m68k/socket.h @@ -14,6 +14,8 @@ #define SO_BROADCAST 6 #define SO_SNDBUF 7 #define SO_RCVBUF 8 +#define SO_SNDBUFFORCE 32 +#define SO_RCVBUFFORCE 33 #define SO_KEEPALIVE 9 #define SO_OOBINLINE 10 #define SO_NO_CHECK 11 diff --git a/include/asm-mips/socket.h b/include/asm-mips/socket.h index 020b4db70ee5..d478a86294ee 100644 --- a/include/asm-mips/socket.h +++ b/include/asm-mips/socket.h @@ -37,6 +37,8 @@ To add: #define SO_REUSEPORT 0x0200 /* Allow local address and port reuse. */ #define SO_ERROR 0x1007 /* get error status and clear */ #define SO_SNDBUF 0x1001 /* Send buffer size. */ #define SO_RCVBUF 0x1002 /* Receive buffer. */ +#define SO_SNDBUFFORCE 0x100a +#define SO_RCVBUFFORCE 0x100b #define SO_SNDLOWAT 0x1003 /* send low-water mark */ #define SO_RCVLOWAT 0x1004 /* receive low-water mark */ #define SO_SNDTIMEO 0x1005 /* send timeout */ diff --git a/include/asm-parisc/socket.h b/include/asm-parisc/socket.h index 4a77996c1862..1bf54dc53c10 100644 --- a/include/asm-parisc/socket.h +++ b/include/asm-parisc/socket.h @@ -16,6 +16,8 @@ /* To add :#define SO_REUSEPORT 0x0200 */ #define SO_SNDBUF 0x1001 #define SO_RCVBUF 0x1002 +#define SO_SNDBUFFORCE 0x100a +#define SO_RCVBUFFORCE 0x100b #define SO_SNDLOWAT 0x1003 #define SO_RCVLOWAT 0x1004 #define SO_SNDTIMEO 0x1005 diff --git a/include/asm-ppc/socket.h b/include/asm-ppc/socket.h index 4134376b0f66..296e1a3469d0 100644 --- a/include/asm-ppc/socket.h +++ b/include/asm-ppc/socket.h @@ -20,6 +20,8 @@ #define SO_BROADCAST 6 #define SO_SNDBUF 7 #define SO_RCVBUF 8 +#define SO_SNDBUFFORCE 32 +#define SO_RCVBUFFORCE 33 #define SO_KEEPALIVE 9 #define SO_OOBINLINE 10 #define SO_NO_CHECK 11 diff --git a/include/asm-ppc64/socket.h b/include/asm-ppc64/socket.h index 59e00dfc8b8e..9e1af8eb2d96 100644 --- a/include/asm-ppc64/socket.h +++ b/include/asm-ppc64/socket.h @@ -21,6 +21,8 @@ #define SO_BROADCAST 6 #define SO_SNDBUF 7 #define SO_RCVBUF 8 +#define SO_SNDBUFFORCE 32 +#define SO_RCVBUFFORCE 33 #define SO_KEEPALIVE 9 #define SO_OOBINLINE 10 #define SO_NO_CHECK 11 diff --git a/include/asm-s390/socket.h b/include/asm-s390/socket.h index 0e96eeca4e6b..15a5298c8744 100644 --- a/include/asm-s390/socket.h +++ b/include/asm-s390/socket.h @@ -22,6 +22,8 @@ #define SO_BROADCAST 6 #define SO_SNDBUF 7 #define SO_RCVBUF 8 +#define SO_SNDBUFFORCE 32 +#define SO_RCVBUFFORCE 33 #define SO_KEEPALIVE 9 #define SO_OOBINLINE 10 #define SO_NO_CHECK 11 diff --git a/include/asm-sh/socket.h b/include/asm-sh/socket.h index dde696c3b4c7..553904ff9336 100644 --- a/include/asm-sh/socket.h +++ b/include/asm-sh/socket.h @@ -14,6 +14,8 @@ #define SO_BROADCAST 6 #define SO_SNDBUF 7 #define SO_RCVBUF 8 +#define SO_RCVBUFFORCE 32 +#define SO_SNDBUFFORCE 33 #define SO_KEEPALIVE 9 #define SO_OOBINLINE 10 #define SO_NO_CHECK 11 diff --git a/include/asm-sparc/socket.h b/include/asm-sparc/socket.h index c1154e3ecfdf..09575b608adb 100644 --- a/include/asm-sparc/socket.h +++ b/include/asm-sparc/socket.h @@ -29,6 +29,8 @@ #define SO_SNDBUF 0x1001 #define SO_RCVBUF 0x1002 +#define SO_SNDBUFFORCE 0x100a +#define SO_RCVBUFFORCE 0x100b #define SO_ERROR 0x1007 #define SO_TYPE 0x1008 diff --git a/include/asm-sparc64/socket.h b/include/asm-sparc64/socket.h index 865547a23908..59987dad3359 100644 --- a/include/asm-sparc64/socket.h +++ b/include/asm-sparc64/socket.h @@ -29,6 +29,8 @@ #define SO_SNDBUF 0x1001 #define SO_RCVBUF 0x1002 +#define SO_SNDBUFFORCE 0x100a +#define SO_RCVBUFFORCE 0x100b #define SO_ERROR 0x1007 #define SO_TYPE 0x1008 diff --git a/include/asm-v850/socket.h b/include/asm-v850/socket.h index 213b852af53e..0240d366a0a4 100644 --- a/include/asm-v850/socket.h +++ b/include/asm-v850/socket.h @@ -14,6 +14,8 @@ #define SO_BROADCAST 6 #define SO_SNDBUF 7 #define SO_RCVBUF 8 +#define SO_SNDBUFFORCE 32 +#define SO_RCVBUFFORCE 33 #define SO_KEEPALIVE 9 #define SO_OOBINLINE 10 #define SO_NO_CHECK 11 diff --git a/include/asm-x86_64/socket.h b/include/asm-x86_64/socket.h index d9a252ea8210..f2cdbeae5d5b 100644 --- a/include/asm-x86_64/socket.h +++ b/include/asm-x86_64/socket.h @@ -14,6 +14,8 @@ #define SO_BROADCAST 6 #define SO_SNDBUF 7 #define SO_RCVBUF 8 +#define SO_SNDBUFFORCE 32 +#define SO_RCVBUFFORCE 33 #define SO_KEEPALIVE 9 #define SO_OOBINLINE 10 #define SO_NO_CHECK 11 diff --git a/include/asm-xtensa/socket.h b/include/asm-xtensa/socket.h index daccd05a14cd..00f83f3a6d72 100644 --- a/include/asm-xtensa/socket.h +++ b/include/asm-xtensa/socket.h @@ -24,6 +24,8 @@ #define SO_BROADCAST 6 #define SO_SNDBUF 7 #define SO_RCVBUF 8 +#define SO_SNDBUFFORCE 32 +#define SO_RCVBUFFORCE 33 #define SO_KEEPALIVE 9 #define SO_OOBINLINE 10 #define SO_NO_CHECK 11 diff --git a/net/core/sock.c b/net/core/sock.c index 12f6d9a2a522..51a5e7ddee85 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -260,7 +260,7 @@ int sock_setsockopt(struct socket *sock, int level, int optname, if (val > sysctl_wmem_max) val = sysctl_wmem_max; - +set_sndbuf: sk->sk_userlocks |= SOCK_SNDBUF_LOCK; if ((val * 2) < SOCK_MIN_SNDBUF) sk->sk_sndbuf = SOCK_MIN_SNDBUF; @@ -274,6 +274,13 @@ int sock_setsockopt(struct socket *sock, int level, int optname, sk->sk_write_space(sk); break; + case SO_SNDBUFFORCE: + if (!capable(CAP_NET_ADMIN)) { + ret = -EPERM; + break; + } + goto set_sndbuf; + case SO_RCVBUF: /* Don't error on this BSD doesn't and if you think about it this is right. Otherwise apps have to @@ -282,7 +289,7 @@ int sock_setsockopt(struct socket *sock, int level, int optname, if (val > sysctl_rmem_max) val = sysctl_rmem_max; - +set_rcvbuf: sk->sk_userlocks |= SOCK_RCVBUF_LOCK; /* FIXME: is this lower bound the right one? */ if ((val * 2) < SOCK_MIN_RCVBUF) @@ -291,6 +298,13 @@ int sock_setsockopt(struct socket *sock, int level, int optname, sk->sk_rcvbuf = val * 2; break; + case SO_RCVBUFFORCE: + if (!capable(CAP_NET_ADMIN)) { + ret = -EPERM; + break; + } + goto set_rcvbuf; + case SO_KEEPALIVE: #ifdef CONFIG_INET if (sk->sk_protocol == IPPROTO_TCP)