lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Wed, 13 Apr 2022 13:51:52 +0300 From: Nikolay Aleksandrov <razor@...ckwall.org> To: netdev@...r.kernel.org Cc: dsahern@...nel.org, roopa@...dia.com, idosch@...sch.org, kuba@...nel.org, davem@...emloft.net, bridge@...ts.linux-foundation.org, Nikolay Aleksandrov <razor@...ckwall.org> Subject: [PATCH net-next v4 02/12] net: rtnetlink: add helper to extract msg type's kind Add a helper which extracts the msg type's kind using the kind mask (0x3). Signed-off-by: Nikolay Aleksandrov <razor@...ckwall.org> --- v4: new patch include/net/rtnetlink.h | 6 ++++++ net/core/rtnetlink.c | 2 +- 2 files changed, 7 insertions(+), 1 deletion(-) diff --git a/include/net/rtnetlink.h b/include/net/rtnetlink.h index 78712b51f3da..c51c5ff7f7e2 100644 --- a/include/net/rtnetlink.h +++ b/include/net/rtnetlink.h @@ -19,6 +19,12 @@ enum rtnl_kinds { RTNL_KIND_GET, RTNL_KIND_SET }; +#define RTNL_KIND_MASK 0x3 + +static inline enum rtnl_kinds rtnl_msgtype_kind(int msgtype) +{ + return msgtype & RTNL_KIND_MASK; +} void rtnl_register(int protocol, int msgtype, rtnl_doit_func, rtnl_dumpit_func, unsigned int flags); diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c index 2c36c9dc9b62..beda4a7da062 100644 --- a/net/core/rtnetlink.c +++ b/net/core/rtnetlink.c @@ -5947,7 +5947,7 @@ static int rtnetlink_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh, return 0; family = ((struct rtgenmsg *)nlmsg_data(nlh))->rtgen_family; - kind = type&3; + kind = rtnl_msgtype_kind(type); if (kind != RTNL_KIND_GET && !netlink_net_capable(skb, CAP_NET_ADMIN)) return -EPERM; -- 2.35.1
Powered by blists - more mailing lists