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author | David S. Miller <davem@davemloft.net> | 2009-09-30 16:12:20 -0700 |
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committer | David S. Miller <davem@davemloft.net> | 2009-09-30 16:12:20 -0700 |
commit | b7058842c940ad2c08dd829b21e5c92ebe3b8758 (patch) | |
tree | 5fe78d599fc345ca0bcd4b083b79095a54b2921b /include/net | |
parent | eb1cf0f8f7a9e5a6d573d5bd72c015686a042db0 (diff) | |
download | linux-3.10-b7058842c940ad2c08dd829b21e5c92ebe3b8758.tar.gz linux-3.10-b7058842c940ad2c08dd829b21e5c92ebe3b8758.tar.bz2 linux-3.10-b7058842c940ad2c08dd829b21e5c92ebe3b8758.zip |
net: Make setsockopt() optlen be unsigned.
This provides safety against negative optlen at the type
level instead of depending upon (sometimes non-trivial)
checks against this sprinkled all over the the place, in
each and every implementation.
Based upon work done by Arjan van de Ven and feedback
from Linus Torvalds.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net')
-rw-r--r-- | include/net/compat.h | 4 | ||||
-rw-r--r-- | include/net/inet_connection_sock.h | 6 | ||||
-rw-r--r-- | include/net/ip.h | 4 | ||||
-rw-r--r-- | include/net/ipv6.h | 4 | ||||
-rw-r--r-- | include/net/sctp/structs.h | 4 | ||||
-rw-r--r-- | include/net/sock.h | 12 | ||||
-rw-r--r-- | include/net/tcp.h | 4 | ||||
-rw-r--r-- | include/net/udp.h | 2 |
8 files changed, 20 insertions, 20 deletions
diff --git a/include/net/compat.h b/include/net/compat.h index 5bbf8bf9efe..7c3002832d0 100644 --- a/include/net/compat.h +++ b/include/net/compat.h @@ -40,8 +40,8 @@ extern int put_cmsg_compat(struct msghdr*, int, int, int, void *); extern int cmsghdr_from_user_compat_to_kern(struct msghdr *, struct sock *, unsigned char *, int); -extern int compat_mc_setsockopt(struct sock *, int, int, char __user *, int, - int (*)(struct sock *, int, int, char __user *, int)); +extern int compat_mc_setsockopt(struct sock *, int, int, char __user *, unsigned int, + int (*)(struct sock *, int, int, char __user *, unsigned int)); extern int compat_mc_getsockopt(struct sock *, int, int, char __user *, int __user *, int (*)(struct sock *, int, int, char __user *, int __user *)); diff --git a/include/net/inet_connection_sock.h b/include/net/inet_connection_sock.h index 03cffd9f64e..696d6e4ce68 100644 --- a/include/net/inet_connection_sock.h +++ b/include/net/inet_connection_sock.h @@ -48,13 +48,13 @@ struct inet_connection_sock_af_ops { u16 net_header_len; u16 sockaddr_len; int (*setsockopt)(struct sock *sk, int level, int optname, - char __user *optval, int optlen); + char __user *optval, unsigned int optlen); int (*getsockopt)(struct sock *sk, int level, int optname, char __user *optval, int __user *optlen); #ifdef CONFIG_COMPAT int (*compat_setsockopt)(struct sock *sk, int level, int optname, - char __user *optval, int optlen); + char __user *optval, unsigned int optlen); int (*compat_getsockopt)(struct sock *sk, int level, int optname, char __user *optval, int __user *optlen); @@ -332,5 +332,5 @@ extern void inet_csk_addr2sockaddr(struct sock *sk, struct sockaddr *uaddr); extern int inet_csk_compat_getsockopt(struct sock *sk, int level, int optname, char __user *optval, int __user *optlen); extern int inet_csk_compat_setsockopt(struct sock *sk, int level, int optname, - char __user *optval, int optlen); + char __user *optval, unsigned int optlen); #endif /* _INET_CONNECTION_SOCK_H */ diff --git a/include/net/ip.h b/include/net/ip.h index 5b26a0bd178..2f47e5482b5 100644 --- a/include/net/ip.h +++ b/include/net/ip.h @@ -381,10 +381,10 @@ extern int ip_options_rcv_srr(struct sk_buff *skb); extern void ip_cmsg_recv(struct msghdr *msg, struct sk_buff *skb); extern int ip_cmsg_send(struct net *net, struct msghdr *msg, struct ipcm_cookie *ipc); -extern int ip_setsockopt(struct sock *sk, int level, int optname, char __user *optval, int optlen); +extern int ip_setsockopt(struct sock *sk, int level, int optname, char __user *optval, unsigned int optlen); extern int ip_getsockopt(struct sock *sk, int level, int optname, char __user *optval, int __user *optlen); extern int compat_ip_setsockopt(struct sock *sk, int level, - int optname, char __user *optval, int optlen); + int optname, char __user *optval, unsigned int optlen); extern int compat_ip_getsockopt(struct sock *sk, int level, int optname, char __user *optval, int __user *optlen); extern int ip_ra_control(struct sock *sk, unsigned char on, void (*destructor)(struct sock *)); diff --git a/include/net/ipv6.h b/include/net/ipv6.h index ad9a5113025..8c31d8a0c1f 100644 --- a/include/net/ipv6.h +++ b/include/net/ipv6.h @@ -550,7 +550,7 @@ extern int ipv6_find_tlv(struct sk_buff *skb, int offset, int type); extern int ipv6_setsockopt(struct sock *sk, int level, int optname, char __user *optval, - int optlen); + unsigned int optlen); extern int ipv6_getsockopt(struct sock *sk, int level, int optname, char __user *optval, @@ -559,7 +559,7 @@ extern int compat_ipv6_setsockopt(struct sock *sk, int level, int optname, char __user *optval, - int optlen); + unsigned int optlen); extern int compat_ipv6_getsockopt(struct sock *sk, int level, int optname, diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h index 42d00ced5eb..6e5f0e0c796 100644 --- a/include/net/sctp/structs.h +++ b/include/net/sctp/structs.h @@ -544,7 +544,7 @@ struct sctp_af { int level, int optname, char __user *optval, - int optlen); + unsigned int optlen); int (*getsockopt) (struct sock *sk, int level, int optname, @@ -554,7 +554,7 @@ struct sctp_af { int level, int optname, char __user *optval, - int optlen); + unsigned int optlen); int (*compat_getsockopt) (struct sock *sk, int level, int optname, diff --git a/include/net/sock.h b/include/net/sock.h index 950409dcec3..1621935aad5 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -624,7 +624,7 @@ struct proto { void (*shutdown)(struct sock *sk, int how); int (*setsockopt)(struct sock *sk, int level, int optname, char __user *optval, - int optlen); + unsigned int optlen); int (*getsockopt)(struct sock *sk, int level, int optname, char __user *optval, int __user *option); @@ -632,7 +632,7 @@ struct proto { int (*compat_setsockopt)(struct sock *sk, int level, int optname, char __user *optval, - int optlen); + unsigned int optlen); int (*compat_getsockopt)(struct sock *sk, int level, int optname, char __user *optval, @@ -951,7 +951,7 @@ extern void sock_rfree(struct sk_buff *skb); extern int sock_setsockopt(struct socket *sock, int level, int op, char __user *optval, - int optlen); + unsigned int optlen); extern int sock_getsockopt(struct socket *sock, int level, int op, char __user *optval, @@ -993,7 +993,7 @@ extern int sock_no_shutdown(struct socket *, int); extern int sock_no_getsockopt(struct socket *, int , int, char __user *, int __user *); extern int sock_no_setsockopt(struct socket *, int, int, - char __user *, int); + char __user *, unsigned int); extern int sock_no_sendmsg(struct kiocb *, struct socket *, struct msghdr *, size_t); extern int sock_no_recvmsg(struct kiocb *, struct socket *, @@ -1015,11 +1015,11 @@ extern int sock_common_getsockopt(struct socket *sock, int level, int optname, extern int sock_common_recvmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg, size_t size, int flags); extern int sock_common_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, int optlen); + char __user *optval, unsigned int optlen); extern int compat_sock_common_getsockopt(struct socket *sock, int level, int optname, char __user *optval, int __user *optlen); extern int compat_sock_common_setsockopt(struct socket *sock, int level, - int optname, char __user *optval, int optlen); + int optname, char __user *optval, unsigned int optlen); extern void sk_common_release(struct sock *sk); diff --git a/include/net/tcp.h b/include/net/tcp.h index 56b76027b85..03a49c70337 100644 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@ -394,13 +394,13 @@ extern int tcp_getsockopt(struct sock *sk, int level, int __user *optlen); extern int tcp_setsockopt(struct sock *sk, int level, int optname, char __user *optval, - int optlen); + unsigned int optlen); extern int compat_tcp_getsockopt(struct sock *sk, int level, int optname, char __user *optval, int __user *optlen); extern int compat_tcp_setsockopt(struct sock *sk, int level, int optname, - char __user *optval, int optlen); + char __user *optval, unsigned int optlen); extern void tcp_set_keepalive(struct sock *sk, int val); extern int tcp_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, diff --git a/include/net/udp.h b/include/net/udp.h index 5fb029f817a..f98abd2ce70 100644 --- a/include/net/udp.h +++ b/include/net/udp.h @@ -144,7 +144,7 @@ extern unsigned int udp_poll(struct file *file, struct socket *sock, extern int udp_lib_getsockopt(struct sock *sk, int level, int optname, char __user *optval, int __user *optlen); extern int udp_lib_setsockopt(struct sock *sk, int level, int optname, - char __user *optval, int optlen, + char __user *optval, unsigned int optlen, int (*push_pending_frames)(struct sock *)); extern struct sock *udp4_lib_lookup(struct net *net, __be32 saddr, __be16 sport, |