kernel/linux.git/net/ipv4/raw.c, branch linux-4.20.y

net: add missing SOF_TIMESTAMPING_OPT_ID support

2018-12-18T07:27:00+00:00

SOF_TIMESTAMPING_OPT_ID is supported on TCP, UDP and RAW sockets. But it was missing on RAW with IPPROTO_IP, PF_PACKET and CAN. Add skb_setup_tx_timestamp that configures both tx_flags and tskey for these paths that do not need corking or use bytestream keys. Fixes: 09c2d251b707 ("net-timestamp: add key to disambiguate concurrent datagrams") Signed-off-by: Willem de Bruijn Acked-by: Soheil Hassas Yeganeh Signed-off-by: David S. Miller

ipv4: Allow sending multicast packets on specific i/f using VRF socket

2018-10-03T05:28:17+00:00

It is useful to be able to use the same socket for listening in a specific VRF, as for sending multicast packets out of a specific interface. However, the bound device on the socket currently takes precedence and results in the packets not being sent. Relax the condition on overriding the output interface to use for sending packets out of UDP, raw and ping sockets to allow multicast packets to be sent using the specified multicast interface. Signed-off-by: Robert Shearman Signed-off-by: Mike Manning Reviewed-by: David Ahern Signed-off-by: David S. Miller

ip: remove tx_flags from ipcm_cookie and use same logic for v4 and v6

2018-07-07T01:58:49+00:00

skb_shinfo(skb)->tx_flags is derived from sk->sk_tsflags, possibly after modification by __sock_cmsg_send, by calling sock_tx_timestamp. The IPv4 and IPv6 paths do this conversion differently. In IPv4, the individual protocols that support tx timestamps call this function and store the result in ipc.tx_flags. In IPv6, sock_tx_timestamp is called in __ip6_append_data. There is no need to store both tx_flags and ts_flags in the cookie as one is derived from the other. Convert when setting up the cork and remove the redundant field. This is similar to IPv6, only have the conversion happen only once per datagram, in ip(6)_setup_cork. Also change __ip6_append_data to match __ip_append_data. Only update tskey if timestamping is enabled with OPT_ID. The SOCK_.. test is redundant: only valid protocols can have non-zero cork->tx_flags. After this change the IPv4 and IPv6 logic is the same. Signed-off-by: Willem de Bruijn Signed-off-by: David S. Miller

ipv4: ipcm_cookie initializers

2018-07-07T01:58:49+00:00

Initialize the cookie in one location to reduce code duplication and avoid bugs from inconsistent initialization, such as that fixed in commit 9887cba19978 ("ip: limit use of gso_size to udp"). Signed-off-by: Willem de Bruijn Signed-off-by: David S. Miller

net: ipv4: Hook into time based transmission

2018-07-04T13:30:27+00:00

Add a transmit_time field to struct inet_cork, then copy the timestamp from the CMSG cookie at ip_setup_cork() so we can safely copy it into the skb later during __ip_make_skb(). For the raw fast path, just perform the copy at raw_send_hdrinc(). Signed-off-by: Richard Cochran Signed-off-by: Jesus Sanchez-Palencia Signed-off-by: David S. Miller

proc: introduce proc_create_net{,_data}

2018-05-16T05:24:30+00:00

Variants of proc_create{,_data} that directly take a struct seq_operations and deal with network namespaces in ->open and ->release. All callers of proc_create + seq_open_net converted over, and seq_{open,release}_net are removed entirely. Signed-off-by: Christoph Hellwig

ipv{4,6}/raw: simplify ѕeq_file code

2018-05-16T05:23:35+00:00

Pass the hashtable to the proc private data instead of copying it into the per-file private data. Signed-off-by: Christoph Hellwig

net: Drop pernet_operations::async

2018-03-27T17:18:09+00:00

Synchronous pernet_operations are not allowed anymore. All are asynchronous. So, drop the structure member. Signed-off-by: Kirill Tkhai Signed-off-by: David S. Miller

net: Use octal not symbolic permissions

2018-03-26T16:07:48+00:00

Prefer the direct use of octal for permissions. Done with checkpatch -f --types=SYMBOLIC_PERMS --fix-inplace and some typing. Miscellanea: o Whitespace neatening around these conversions. Signed-off-by: Joe Perches Signed-off-by: David S. Miller

net: Revert "ipv4: fix a deadlock in ip_ra_control"

2018-03-22T19:12:56+00:00

This reverts commit 1215e51edad1. Since raw_close() is used on every RAW socket destruction, the changes made by 1215e51edad1 scale sadly. This clearly seen on endless unshare(CLONE_NEWNET) test, and cleanup_net() kwork spends a lot of time waiting for rtnl_lock() introduced by this commit. Previous patch moved IP_ROUTER_ALERT out of rtnl_lock(), so we revert this patch. Signed-off-by: Kirill Tkhai Signed-off-by: David S. Miller