From: Erin MacNeil <lnx.erin@gmail.com>
To: lnx.erin@gmail.com
Cc: Richard Henderson <rth@twiddle.net>,
Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
Matt Turner <mattst88@gmail.com>,
Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
"James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>,
Helge Deller <deller@gmx.de>,
"David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
Arnd Bergmann <arnd@arndb.de>,
Marcel Holtmann <marcel@holtmann.org>,
Johan Hedberg <johan.hedberg@gmail.com>,
Luiz Augusto von Dentz <luiz.dentz@gmail.com>,
Oliver Hartkopp <socketcan@hartkopp.net>,
Marc Kleine-Budde <mkl@pengutronix.de>,
Robin van der Gracht <robin@protonic.nl>,
Oleksij Rempel <linux@rempel-privat.de>,
kernel@pengutronix.de, Alexander Aring <alex.aring@gmail.com>,
Stefan Schmidt <stefan@datenfreihafen.org>,
Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>,
David Ahern <dsahern@kernel.org>,
Steffen Klassert <steffen.klassert@secunet.com>,
Herbert Xu <herbert@gondor.apana.org.au>,
Jeremy Kerr <jk@codeconstruct.com.au>,
Matt Johnston <matt@codeconstruct.com.au>,
Vlad Yasevich <vyasevich@gmail.com>,
Neil Horman <nhorman@tuxdriver.com>,
Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>,
Eric Dumazet <edumazet@google.com>,
Akhmat Karakotov <hmukos@yandex-team.ru>,
Stephen Rothwell <sfr@canb.auug.org.au>,
Martynas Pumputis <m@lambda.lt>,
Pavel Tikhomirov <ptikhomirov@virtuozzo.com>,
Lorenz Bauer <lmb@cloudflare.com>, Wei Wang <weiwan@google.com>,
Yangbo Lu <yangbo.lu@nxp.com>, Florian Westphal <fw@strlen.de>,
Thomas Gleixner <tglx@linutronix.de>,
Richard Palethorpe <rpalethorpe@suse.com>,
Hangbin Liu <liuhangbin@gmail.com>,
Willem de Bruijn <willemb@google.com>,
Pablo Neira Ayuso <pablo@netfilter.org>,
Richard Sanger <rsanger@wand.net.nz>,
Yajun Deng <yajun.deng@linux.dev>,
Jiapeng Chong <jiapeng.chong@linux.alibaba.com>,
linux-alpha@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org,
sparclinux@vger.kernel.org, netdev@vger.kernel.org,
linux-arch@vger.kernel.org, linux-bluetooth@vger.kernel.org,
linux-can@vger.kernel.org, linux-wpan@vger.kernel.org,
linux-sctp@vger.kernel.org
Subject: [PATCH net-next v2] net: Add SO_RCVMARK socket option to provide SO_MARK with recvmsg().
Date: Tue, 26 Apr 2022 23:21:51 -0400 [thread overview]
Message-ID: <20220427032212.28470-1-lnx.erin@gmail.com> (raw)
In-Reply-To: <202204270907.nUUrw3dS-lkp@intel.com>
Adding a new socket option, SO_RCVMARK, to indicate that SO_MARK
should be included in the ancillary data returned by recvmsg().
Renamed the sock_recv_ts_and_drops() function to sock_recv_cmsgs().
Signed-off-by: Erin MacNeil <lnx.erin@gmail.com>
---
arch/alpha/include/uapi/asm/socket.h | 2 ++
arch/mips/include/uapi/asm/socket.h | 2 ++
arch/parisc/include/uapi/asm/socket.h | 2 ++
arch/sparc/include/uapi/asm/socket.h | 2 ++
include/net/sock.h | 18 ++++++++++--------
include/uapi/asm-generic/socket.h | 2 ++
net/atm/common.c | 2 +-
net/bluetooth/af_bluetooth.c | 4 ++--
net/can/bcm.c | 2 +-
net/can/j1939/socket.c | 2 +-
net/can/raw.c | 2 +-
net/core/sock.c | 7 +++++++
net/ieee802154/socket.c | 4 ++--
net/ipv4/raw.c | 2 +-
net/ipv4/udp.c | 2 +-
net/ipv6/raw.c | 2 +-
net/ipv6/udp.c | 2 +-
net/key/af_key.c | 2 +-
net/mctp/af_mctp.c | 2 +-
net/packet/af_packet.c | 2 +-
net/sctp/socket.c | 2 +-
net/socket.c | 15 ++++++++++++---
tools/include/uapi/asm-generic/socket.h | 2 ++
23 files changed, 57 insertions(+), 27 deletions(-)
diff --git a/arch/alpha/include/uapi/asm/socket.h b/arch/alpha/include/uapi/asm/socket.h
index 7d81535893af..739891b94136 100644
--- a/arch/alpha/include/uapi/asm/socket.h
+++ b/arch/alpha/include/uapi/asm/socket.h
@@ -135,6 +135,8 @@
#define SO_TXREHASH 74
+#define SO_RCVMARK 75
+
#if !defined(__KERNEL__)
#if __BITS_PER_LONG == 64
diff --git a/arch/mips/include/uapi/asm/socket.h b/arch/mips/include/uapi/asm/socket.h
index 1d55e57b8466..18f3d95ecfec 100644
--- a/arch/mips/include/uapi/asm/socket.h
+++ b/arch/mips/include/uapi/asm/socket.h
@@ -146,6 +146,8 @@
#define SO_TXREHASH 74
+#define SO_RCVMARK 75
+
#if !defined(__KERNEL__)
#if __BITS_PER_LONG == 64
diff --git a/arch/parisc/include/uapi/asm/socket.h b/arch/parisc/include/uapi/asm/socket.h
index 654061e0964e..f486d3dfb6bb 100644
--- a/arch/parisc/include/uapi/asm/socket.h
+++ b/arch/parisc/include/uapi/asm/socket.h
@@ -127,6 +127,8 @@
#define SO_TXREHASH 0x4048
+#define SO_RCVMARK 0x4049
+
#if !defined(__KERNEL__)
#if __BITS_PER_LONG == 64
diff --git a/arch/sparc/include/uapi/asm/socket.h b/arch/sparc/include/uapi/asm/socket.h
index 666f81e617ea..ff08038fc2b2 100644
--- a/arch/sparc/include/uapi/asm/socket.h
+++ b/arch/sparc/include/uapi/asm/socket.h
@@ -128,6 +128,8 @@
#define SO_TXREHASH 0x0053
+#define SO_RCVMARK 0x0054
+
#if !defined(__KERNEL__)
diff --git a/include/net/sock.h b/include/net/sock.h
index a01d6c421aa2..30e7cbad194c 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -895,6 +895,7 @@ enum sock_flags {
SOCK_TXTIME,
SOCK_XDP, /* XDP is attached */
SOCK_TSTAMP_NEW, /* Indicates 64 bit timestamps always */
+ SOCK_RCVMARK, /* Receive SO_MARK ancillary data with packet */
};
#define SK_FLAGS_TIMESTAMP ((1UL << SOCK_TIMESTAMP) | (1UL << SOCK_TIMESTAMPING_RX_SOFTWARE))
@@ -2649,20 +2650,21 @@ sock_recv_timestamp(struct msghdr *msg, struct sock *sk, struct sk_buff *skb)
__sock_recv_wifi_status(msg, sk, skb);
}
-void __sock_recv_ts_and_drops(struct msghdr *msg, struct sock *sk,
- struct sk_buff *skb);
+void __sock_recv_cmsgs(struct msghdr *msg, struct sock *sk,
+ struct sk_buff *skb);
#define SK_DEFAULT_STAMP (-1L * NSEC_PER_SEC)
-static inline void sock_recv_ts_and_drops(struct msghdr *msg, struct sock *sk,
- struct sk_buff *skb)
+static inline void sock_recv_cmsgs(struct msghdr *msg, struct sock *sk,
+ struct sk_buff *skb)
{
-#define FLAGS_TS_OR_DROPS ((1UL << SOCK_RXQ_OVFL) | \
- (1UL << SOCK_RCVTSTAMP))
+#define FLAGS_RECV_CMSGS ((1UL << SOCK_RXQ_OVFL) | \
+ (1UL << SOCK_RCVTSTAMP) | \
+ (1UL << SOCK_RCVMARK))
#define TSFLAGS_ANY (SOF_TIMESTAMPING_SOFTWARE | \
SOF_TIMESTAMPING_RAW_HARDWARE)
- if (sk->sk_flags & FLAGS_TS_OR_DROPS || sk->sk_tsflags & TSFLAGS_ANY)
- __sock_recv_ts_and_drops(msg, sk, skb);
+ if (sk->sk_flags & FLAGS_RECV_CMSGS || sk->sk_tsflags & TSFLAGS_ANY)
+ __sock_recv_cmsgs(msg, sk, skb);
else if (unlikely(sock_flag(sk, SOCK_TIMESTAMP)))
sock_write_timestamp(sk, skb->tstamp);
else if (unlikely(sk->sk_stamp == SK_DEFAULT_STAMP))
diff --git a/include/uapi/asm-generic/socket.h b/include/uapi/asm-generic/socket.h
index 467ca2f28760..638230899e98 100644
--- a/include/uapi/asm-generic/socket.h
+++ b/include/uapi/asm-generic/socket.h
@@ -130,6 +130,8 @@
#define SO_TXREHASH 74
+#define SO_RCVMARK 75
+
#if !defined(__KERNEL__)
#if __BITS_PER_LONG == 64 || (defined(__x86_64__) && defined(__ILP32__))
diff --git a/net/atm/common.c b/net/atm/common.c
index d0c8ab7ff8f6..f7019df41c3e 100644
--- a/net/atm/common.c
+++ b/net/atm/common.c
@@ -553,7 +553,7 @@ int vcc_recvmsg(struct socket *sock, struct msghdr *msg, size_t size,
error = skb_copy_datagram_msg(skb, 0, msg, copied);
if (error)
return error;
- sock_recv_ts_and_drops(msg, sk, skb);
+ sock_recv_cmsgs(msg, sk, skb);
if (!(flags & MSG_PEEK)) {
pr_debug("%d -= %d\n", atomic_read(&sk->sk_rmem_alloc),
diff --git a/net/bluetooth/af_bluetooth.c b/net/bluetooth/af_bluetooth.c
index 62705734343b..b506409bb498 100644
--- a/net/bluetooth/af_bluetooth.c
+++ b/net/bluetooth/af_bluetooth.c
@@ -280,7 +280,7 @@ int bt_sock_recvmsg(struct socket *sock, struct msghdr *msg, size_t len,
skb_reset_transport_header(skb);
err = skb_copy_datagram_msg(skb, 0, msg, copied);
if (err == 0) {
- sock_recv_ts_and_drops(msg, sk, skb);
+ sock_recv_cmsgs(msg, sk, skb);
if (msg->msg_name && bt_sk(sk)->skb_msg_name)
bt_sk(sk)->skb_msg_name(skb, msg->msg_name,
@@ -384,7 +384,7 @@ int bt_sock_stream_recvmsg(struct socket *sock, struct msghdr *msg,
copied += chunk;
size -= chunk;
- sock_recv_ts_and_drops(msg, sk, skb);
+ sock_recv_cmsgs(msg, sk, skb);
if (!(flags & MSG_PEEK)) {
int skb_len = skb_headlen(skb);
diff --git a/net/can/bcm.c b/net/can/bcm.c
index 64c07e650bb4..65ee1b784a30 100644
--- a/net/can/bcm.c
+++ b/net/can/bcm.c
@@ -1647,7 +1647,7 @@ static int bcm_recvmsg(struct socket *sock, struct msghdr *msg, size_t size,
return err;
}
- sock_recv_ts_and_drops(msg, sk, skb);
+ sock_recv_cmsgs(msg, sk, skb);
if (msg->msg_name) {
__sockaddr_check_size(BCM_MIN_NAMELEN);
diff --git a/net/can/j1939/socket.c b/net/can/j1939/socket.c
index 0bb4fd3f6264..f5ecfdcf57b2 100644
--- a/net/can/j1939/socket.c
+++ b/net/can/j1939/socket.c
@@ -841,7 +841,7 @@ static int j1939_sk_recvmsg(struct socket *sock, struct msghdr *msg,
paddr->can_addr.j1939.pgn = skcb->addr.pgn;
}
- sock_recv_ts_and_drops(msg, sk, skb);
+ sock_recv_cmsgs(msg, sk, skb);
msg->msg_flags |= skcb->msg_flags;
skb_free_datagram(sk, skb);
diff --git a/net/can/raw.c b/net/can/raw.c
index 0cf728dcff36..b7dbb57557f3 100644
--- a/net/can/raw.c
+++ b/net/can/raw.c
@@ -866,7 +866,7 @@ static int raw_recvmsg(struct socket *sock, struct msghdr *msg, size_t size,
return err;
}
- sock_recv_ts_and_drops(msg, sk, skb);
+ sock_recv_cmsgs(msg, sk, skb);
if (msg->msg_name) {
__sockaddr_check_size(RAW_MIN_NAMELEN);
diff --git a/net/core/sock.c b/net/core/sock.c
index 29abec3eabd8..673b6e49f109 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -1311,6 +1311,9 @@ int sock_setsockopt(struct socket *sock, int level, int optname,
__sock_set_mark(sk, val);
break;
+ case SO_RCVMARK:
+ sock_valbool_flag(sk, SOCK_RCVMARK, valbool);
+ break;
case SO_RXQ_OVFL:
sock_valbool_flag(sk, SOCK_RXQ_OVFL, valbool);
@@ -1737,6 +1740,10 @@ int sock_getsockopt(struct socket *sock, int level, int optname,
v.val = sk->sk_mark;
break;
+ case SO_RCVMARK:
+ v.val = sock_flag(sk, SOCK_RCVMARK);
+ break;
+
case SO_RXQ_OVFL:
v.val = sock_flag(sk, SOCK_RXQ_OVFL);
break;
diff --git a/net/ieee802154/socket.c b/net/ieee802154/socket.c
index f24852814fa3..718fb77bb372 100644
--- a/net/ieee802154/socket.c
+++ b/net/ieee802154/socket.c
@@ -328,7 +328,7 @@ static int raw_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
if (err)
goto done;
- sock_recv_ts_and_drops(msg, sk, skb);
+ sock_recv_cmsgs(msg, sk, skb);
if (flags & MSG_TRUNC)
copied = skb->len;
@@ -718,7 +718,7 @@ static int dgram_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
if (err)
goto done;
- sock_recv_ts_and_drops(msg, sk, skb);
+ sock_recv_cmsgs(msg, sk, skb);
if (saddr) {
/* Clear the implicit padding in struct sockaddr_ieee802154
diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
index 4056b0da85ea..bbd717805b10 100644
--- a/net/ipv4/raw.c
+++ b/net/ipv4/raw.c
@@ -783,7 +783,7 @@ static int raw_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
if (err)
goto done;
- sock_recv_ts_and_drops(msg, sk, skb);
+ sock_recv_cmsgs(msg, sk, skb);
/* Copy the address. */
if (sin) {
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index aa8545ca6964..9d5071c79c95 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -1909,7 +1909,7 @@ int udp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int flags,
UDP_INC_STATS(sock_net(sk),
UDP_MIB_INDATAGRAMS, is_udplite);
- sock_recv_ts_and_drops(msg, sk, skb);
+ sock_recv_cmsgs(msg, sk, skb);
/* Copy the address. */
if (sin) {
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index 0d7c13d33d1a..3b7cbd522b54 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -512,7 +512,7 @@ static int rawv6_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
*addr_len = sizeof(*sin6);
}
- sock_recv_ts_and_drops(msg, sk, skb);
+ sock_recv_cmsgs(msg, sk, skb);
if (np->rxopt.all)
ip6_datagram_recv_ctl(sk, msg, skb);
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 688af6f809fe..3fc97d4621ac 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -391,7 +391,7 @@ int udpv6_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
if (!peeking)
SNMP_INC_STATS(mib, UDP_MIB_INDATAGRAMS);
- sock_recv_ts_and_drops(msg, sk, skb);
+ sock_recv_cmsgs(msg, sk, skb);
/* Copy the address. */
if (msg->msg_name) {
diff --git a/net/key/af_key.c b/net/key/af_key.c
index d09ec26b1081..175a162eec58 100644
--- a/net/key/af_key.c
+++ b/net/key/af_key.c
@@ -3711,7 +3711,7 @@ static int pfkey_recvmsg(struct socket *sock, struct msghdr *msg, size_t len,
if (err)
goto out_free;
- sock_recv_ts_and_drops(msg, sk, skb);
+ sock_recv_cmsgs(msg, sk, skb);
err = (flags & MSG_TRUNC) ? skb->len : copied;
diff --git a/net/mctp/af_mctp.c b/net/mctp/af_mctp.c
index 221863afc4b1..c2fc2a7b2528 100644
--- a/net/mctp/af_mctp.c
+++ b/net/mctp/af_mctp.c
@@ -238,7 +238,7 @@ static int mctp_recvmsg(struct socket *sock, struct msghdr *msg, size_t len,
if (rc < 0)
goto out_free;
- sock_recv_ts_and_drops(msg, sk, skb);
+ sock_recv_cmsgs(msg, sk, skb);
if (addr) {
struct mctp_skb_cb *cb = mctp_cb(skb);
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index fd31334cf688..677f9cfa9660 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -3477,7 +3477,7 @@ static int packet_recvmsg(struct socket *sock, struct msghdr *msg, size_t len,
sll->sll_protocol = skb->protocol;
}
- sock_recv_ts_and_drops(msg, sk, skb);
+ sock_recv_cmsgs(msg, sk, skb);
if (msg->msg_name) {
const size_t max_len = min(sizeof(skb->cb),
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 3e3fe923bed5..6d37d2dfb3da 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -2128,7 +2128,7 @@ static int sctp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
head_skb = event->chunk->head_skb;
else
head_skb = skb;
- sock_recv_ts_and_drops(msg, sk, head_skb);
+ sock_recv_cmsgs(msg, sk, head_skb);
if (sctp_ulpevent_is_notification(event)) {
msg->msg_flags |= MSG_NOTIFICATION;
sp->pf->event_msgname(event, msg->msg_name, addr_len);
diff --git a/net/socket.c b/net/socket.c
index 6887840682bb..f0c39c874665 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -930,13 +930,22 @@ static inline void sock_recv_drops(struct msghdr *msg, struct sock *sk,
sizeof(__u32), &SOCK_SKB_CB(skb)->dropcount);
}
-void __sock_recv_ts_and_drops(struct msghdr *msg, struct sock *sk,
- struct sk_buff *skb)
+static void sock_recv_mark(struct msghdr *msg, struct sock *sk,
+ struct sk_buff *skb)
+{
+ if (sock_flag(sk, SOCK_RCVMARK) && skb)
+ put_cmsg(msg, SOL_SOCKET, SO_MARK, sizeof(__u32),
+ &skb->mark);
+}
+
+void __sock_recv_cmsgs(struct msghdr *msg, struct sock *sk,
+ struct sk_buff *skb)
{
sock_recv_timestamp(msg, sk, skb);
sock_recv_drops(msg, sk, skb);
+ sock_recv_mark(msg, sk, skb);
}
-EXPORT_SYMBOL_GPL(__sock_recv_ts_and_drops);
+EXPORT_SYMBOL_GPL(__sock_recv_cmsgs);
INDIRECT_CALLABLE_DECLARE(int inet_recvmsg(struct socket *, struct msghdr *,
size_t, int));
diff --git a/tools/include/uapi/asm-generic/socket.h b/tools/include/uapi/asm-generic/socket.h
index 77f7c1638eb1..8756df13be50 100644
--- a/tools/include/uapi/asm-generic/socket.h
+++ b/tools/include/uapi/asm-generic/socket.h
@@ -119,6 +119,8 @@
#define SO_DETACH_REUSEPORT_BPF 68
+#define SO_RCVMARK 75
+
#if !defined(__KERNEL__)
#if __BITS_PER_LONG == 64 || (defined(__x86_64__) && defined(__ILP32__))
--
2.20.1
next parent reply other threads:[~2022-04-27 3:22 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <202204270907.nUUrw3dS-lkp@intel.com>
2022-04-27 3:21 ` Erin MacNeil [this message]
2022-04-27 20:02 ` [PATCH net-next v3] net: SO_RCVMARK socket option for SO_MARK with recvmsg() Erin MacNeil
2022-04-27 20:47 ` Eric Dumazet
2022-04-28 1:27 ` David Ahern
2022-04-28 6:32 ` Marc Kleine-Budde
2022-04-28 21:20 ` patchwork-bot+netdevbpf
2022-04-30 8:00 ` patchwork-bot+bluetooth
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