966221 Commits

Author SHA1 Message Date
Xin Long
259db53ba5 sctp: support for sending packet over udp6 sock
This one basically does the similar things in sctp_v6_xmit as does for
udp4 sock in the last patch, just note that:

  1. label needs to be calculated, as it's the param of
     udp_tunnel6_xmit_skb().

  2. The 'nocheck' param of udp_tunnel6_xmit_skb() is false, as
     required by RFC.

v1->v2:
  - Use sp->udp_port instead in sctp_v6_xmit(), which is more safe.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-30 15:24:35 -07:00
Xin Long
600af7fd80 sctp: support for sending packet over udp4 sock
This patch does what the rfc6951#section-5.3 says for ipv4:

  "Within the UDP header, the source port MUST be the local UDP
   encapsulation port number of the SCTP stack, and the destination port
   MUST be the remote UDP encapsulation port number maintained for the
   association and the destination address to which the packet is sent
   (see Section 5.1).

   Because the SCTP packet is the UDP payload, the length of the UDP
   packet MUST be the length of the SCTP packet plus the size of the UDP
   header.

   The SCTP checksum MUST be computed for IPv4 and IPv6, and the UDP
   checksum SHOULD be computed for IPv4 and IPv6."

Some places need to be adjusted in sctp_packet_transmit():

  1. For non-gso packets, when transport's encap_port is set, sctp
     checksum has to be done in sctp_packet_pack(), as the outer
     udp will use ip_summed = CHECKSUM_PARTIAL to do the offload
     setting for checksum.

  2. Delay calling dst_clone() and skb_dst_set() for non-udp packets
     until sctp_v4_xmit(), as for udp packets, skb_dst_set() is not
     needed before calling udp_tunnel_xmit_skb().

then in sctp_v4_xmit():

  1. Go to udp_tunnel_xmit_skb() only when transport->encap_port and
     net->sctp.udp_port both are set, as these are one for dst port
     and another for src port.

  2. For gso packet, SKB_GSO_UDP_TUNNEL_CSUM is set for gso_type, and
     with this udp checksum can be done in __skb_udp_tunnel_segment()
     for each segments after the sctp gso.

  3. inner_mac_header and inner_transport_header are set, as these
     will be needed in __skb_udp_tunnel_segment() to find the right
     headers.

  4. df and ttl are calculated, as these are the required params by
     udp_tunnel_xmit_skb().

  5. nocheck param has to be false, as "the UDP checksum SHOULD be
     computed for IPv4 and IPv6", says in rfc6951#section-5.3.

v1->v2:
  - Use sp->udp_port instead in sctp_v4_xmit(), which is more safe.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-30 15:24:30 -07:00
Xin Long
bcd623d8e9 sctp: call sk_setup_caps in sctp_packet_transmit instead
sk_setup_caps() was originally called in Commit 90017accff61 ("sctp:
Add GSO support"), as:

  "We have to refresh this in case we are xmiting to more than one
   transport at a time"

This actually happens in the loop of sctp_outq_flush_transports(),
and it shouldn't be tied to gso, so move it out of gso part and
before sctp_packet_pack().

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-30 15:24:25 -07:00
Xin Long
f1bfe8b541 sctp: add udphdr to overhead when udp_port is set
sctp_mtu_payload() is for calculating the frag size before making
chunks from a msg. So we should only add udphdr size to overhead
when udp socks are listening, as only then sctp can handle the
incoming sctp over udp packets and outgoing sctp over udp packets
will be possible.

Note that we can't do this according to transport->encap_port, as
different transports may be set to different values, while the
chunks were made before choosing the transport, we could not be
able to meet all rfc6951#section-5.6 recommends.

v1->v2:
  - Add udp_port for sctp_sock to avoid a potential race issue, it
    will be used in xmit path in the next patch.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-30 15:24:21 -07:00
Xin Long
a1dd2cf2f1 sctp: allow changing transport encap_port by peer packets
As rfc6951#section-5.4 says:

  "After finding the SCTP association (which
   includes checking the verification tag), the UDP source port MUST be
   stored as the encapsulation port for the destination address the SCTP
   packet is received from (see Section 5.1).

   When a non-encapsulated SCTP packet is received by the SCTP stack,
   the encapsulation of outgoing packets belonging to the same
   association and the corresponding destination address MUST be
   disabled."

transport encap_port should be updated by a validated incoming packet's
udp src port.

We save the udp src port in sctp_input_cb->encap_port, and then update
the transport in two places:

  1. right after vtag is verified, which is required by RFC, and this
     allows the existent transports to be updated by the chunks that
     can only be processed on an asoc.

  2. right before processing the 'init' where the transports are added,
     and this allows building a sctp over udp connection by client with
     the server not knowing the remote encap port.

  3. when processing ootb_pkt and creating the temporary transport for
     the reply pkt.

Note that sctp_input_cb->header is removed, as it's not used any more
in sctp.

v1->v2:
  - Change encap_port as __be16 for sctp_input_cb.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-30 15:24:16 -07:00
Xin Long
8dba29603b sctp: add SCTP_REMOTE_UDP_ENCAPS_PORT sockopt
This patch is to implement:

  rfc6951#section-6.1: Get or Set the Remote UDP Encapsulation Port Number

with the param of the struct:

  struct sctp_udpencaps {
    sctp_assoc_t sue_assoc_id;
    struct sockaddr_storage sue_address;
    uint16_t sue_port;
  };

the encap_port of sock, assoc or transport can be changed by users,
which also means it allows the different transports of the same asoc
to have different encap_port value.

v1->v2:
  - no change.
v2->v3:
  - fix the endian warning when setting values between encap_port and
    sue_port.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-30 15:24:11 -07:00
Xin Long
e8a3001c21 sctp: add encap_port for netns sock asoc and transport
encap_port is added as per netns/sock/assoc/transport, and the
latter one's encap_port inherits the former one's by default.
The transport's encap_port value would mostly decide if one
packet should go out with udp encapsulated or not.

This patch also allows users to set netns' encap_port by sysctl.

v1->v2:
  - Change to define encap_port as __be16 for sctp_sock, asoc and
    transport.
v2->v3:
  - No change.
v3->v4:
  - Add 'encap_port' entry in ip-sysctl.rst.
v4->v5:
  - Improve the description of encap_port in ip-sysctl.rst.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-30 15:24:06 -07:00
Xin Long
89ba49171f sctp: add encap_err_lookup for udp encap socks
As it says in rfc6951#section-5.5:

  "When receiving ICMP or ICMPv6 response packets, there might not be
   enough bytes in the payload to identify the SCTP association that the
   SCTP packet triggering the ICMP or ICMPv6 packet belongs to.  If a
   received ICMP or ICMPv6 packet cannot be related to a specific SCTP
   association or the verification tag cannot be verified, it MUST be
   discarded silently.  In particular, this means that the SCTP stack
   MUST NOT rely on receiving ICMP or ICMPv6 messages.  Implementation
   constraints could prevent processing received ICMP or ICMPv6
   messages."

ICMP or ICMPv6 packets need to be handled, and this is implemented by
udp encap sock .encap_err_lookup function.

The .encap_err_lookup function is called in __udp(6)_lib_err_encap()
to confirm this path does need to be updated. For sctp, what we can
do here is check if the corresponding asoc and transport exist.

Note that icmp packet process for sctp over udp is done by udp sock
.encap_err_lookup(), and it means for now we can't do as much as
sctp_v4/6_err() does. Also we can't do the two mappings mentioned
in rfc6951#section-5.5.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-30 15:24:00 -07:00
Xin Long
9d6ba260a0 sctp: create udp6 sock and set its encap_rcv
This patch is to add the udp6 sock part in sctp_udp_sock_start/stop().
udp_conf.use_udp6_rx_checksums is set to true, as:

   "The SCTP checksum MUST be computed for IPv4 and IPv6, and the UDP
    checksum SHOULD be computed for IPv4 and IPv6"

says in rfc6951#section-5.3.

v1->v2:
  - Add pr_err() when fails to create udp v6 sock.
  - Add #if IS_ENABLED(CONFIG_IPV6) not to create v6 sock when ipv6 is
    disabled.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-30 15:23:56 -07:00
Xin Long
965ae44412 sctp: create udp4 sock and add its encap_rcv
This patch is to add the functions to create/release udp4 sock,
and set the sock's encap_rcv to process the incoming udp encap
sctp packets. In sctp_udp_rcv(), as we can see, all we need to
do is fix the transport header for sctp_rcv(), then it would
implement the part of rfc6951#section-5.4:

  "When an encapsulated packet is received, the UDP header is removed.
   Then, the generic lookup is performed, as done by an SCTP stack
   whenever a packet is received, to find the association for the
   received SCTP packet"

Note that these functions will be called in the last patch of
this patchset when enabling this feature.

v1->v2:
  - Add pr_err() when fails to create udp v4 sock.
v2->v3:
  - Add 'select NET_UDP_TUNNEL' in sctp Kconfig.
v3->v4:
  - No change.
v4->v5:
  - Change to set udp_port to 0 by default.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-30 15:23:52 -07:00
Xin Long
527beb8ef9 udp: support sctp over udp in skb_udp_tunnel_segment
For the gso of sctp over udp packets, sctp_gso_segment() will be called in
skb_udp_tunnel_segment(), we need to set transport_header to sctp header.

As all the current HWs can't handle both crc checksum and udp checksum at
the same time, the crc checksum has to be done in sctp_gso_segment() by
removing the NETIF_F_SCTP_CRC flag from the features.

Meanwhile, if the HW can't do udp checksum, csum and csum_start has to be
set correctly, and udp checksum will be done in __skb_udp_tunnel_segment()
by calling gso_make_checksum().

Thanks to Paolo, Marcelo and Guillaume for helping with this one.

v1->v2:
  - no change.
v2->v3:
  - remove the he NETIF_F_SCTP_CRC flag from the features.
  - set csum and csum_start in sctp_gso_make_checksum().

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-30 15:23:46 -07:00
Xin Long
3c7d4415db udp6: move the mss check after udp gso tunnel processing
For some protocol's gso, like SCTP, it's using GSO_BY_FRAGS for
gso_size. When using UDP to encapsulate its packet, it will
return error in udp6_ufo_fragment() as skb->len < gso_size,
and it will never go to the gso tunnel processing.

So we should move this check after udp gso tunnel processing,
the same as udp4_ufo_fragment() does.

v1->v2:
  - no change.
v2->v3:
  - not do any cleanup.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-30 15:23:41 -07:00
Xin Long
d26796ae58 udp: check udp sock encap_type in __udp_lib_err
There is a chance that __udp4/6_lib_lookup() returns a udp encap
sock in __udp_lib_err(), like the udp encap listening sock may
use the same port as remote encap port, in which case it should
go to __udp4/6_lib_err_encap() for more validation before
processing the icmp packet.

This patch is to check encap_type in __udp_lib_err() for the
further validation for a encap sock.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-30 15:23:33 -07:00
Russell King
1fb7419198 net: dsa: mv88e6xxx: fix vlan setup
DSA assumes that a bridge which has vlan filtering disabled is not
vlan aware, and ignores all vlan configuration. However, the kernel
software bridge code allows configuration in this state.

This causes the kernel's idea of the bridge vlan state and the
hardware state to disagree, so "bridge vlan show" indicates a correct
configuration but the hardware lacks all configuration. Even worse,
enabling vlan filtering on a DSA bridge immediately blocks all traffic
which, given the output of "bridge vlan show", is very confusing.

Allow the VLAN configuration to be updated on Marvell DSA bridges,
otherwise we end up cutting all traffic when enabling vlan filtering.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Vladimir Oltean <olteanv@gmail.com>
Link: https://lore.kernel.org/r/E1kYAU3-00071C-1G@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-30 14:31:00 -07:00
Bhaskar Chowdhury
85bec4bc91 drivers: net: phy: Fix spelling in comment defalut to default
Fixed spelling in comment like below:

s/defalut/default/p

This is in linux-next.

Signed-off-by: Bhaskar Chowdhury <unixbhaskar@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20201029095525.20200-1-unixbhaskar@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-30 14:15:06 -07:00
Lukas Bulwahn
0ad41b244c net: cls_api: remove unneeded local variable in tc_dump_chain()
make clang-analyzer on x86_64 defconfig caught my attention with:

net/sched/cls_api.c:2964:3: warning: Value stored to 'parent' is never read
  [clang-analyzer-deadcode.DeadStores]
                parent = 0;
                ^

net/sched/cls_api.c:2977:4: warning: Value stored to 'parent' is never read
  [clang-analyzer-deadcode.DeadStores]
                        parent = q->handle;
                        ^

Commit 32a4f5ecd738 ("net: sched: introduce chain object to uapi")
introduced tc_dump_chain() and this initial implementation already
contained these unneeded dead stores.

Simplify the code to make clang-analyzer happy.

As compilers will detect these unneeded assignments and optimize this
anyway, the resulting binary is identical before and after this change.

No functional change. No change in object code.

Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Link: https://lore.kernel.org/r/20201028113533.26160-1-lukas.bulwahn@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-30 14:05:55 -07:00
Lukas Bulwahn
400490ac2c ipv6: mcast: make annotations for ip6_mc_msfget() consistent
Commit 931ca7ab7fe8 ("ip*_mc_gsfget(): lift copyout of struct group_filter
into callers") adjusted the type annotations for ip6_mc_msfget() at its
declaration, but missed the type annotations at its definition.

Hence, sparse complains on ./net/ipv6/mcast.c:

  mcast.c:550:5: error: symbol 'ip6_mc_msfget' redeclared with different type \
  (incompatible argument 3 (different address spaces))

Make ip6_mc_msfget() annotations consistent, which also resolves this
warning from sparse:

  mcast.c:607:34: warning: incorrect type in argument 1 (different address spaces)
  mcast.c:607:34:    expected void [noderef] __user *to
  mcast.c:607:34:    got struct __kernel_sockaddr_storage *p

No functional change. No change in object code.

Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Link: https://lore.kernel.org/r/20201028115349.6855-1-lukas.bulwahn@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-30 13:58:45 -07:00
Hoang Huu Le
09b5678c77 tipc: remove dead code in tipc_net and relatives
dist_queue is no longer used since commit 37922ea4a310
("tipc: permit overlapping service ranges in name table")

Acked-by: Jon Maloy <jmaloy@redhat.com>
Acked-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: Hoang Huu Le <hoang.h.le@dektech.com.au>
Link: https://lore.kernel.org/r/20201028032712.31009-1-hoang.h.le@dektech.com.au
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-30 13:11:47 -07:00
Andrew Lunn
8da1f442d3 net: ipv6: calipso: Fix kerneldoc warnings
net/ipv6/calipso.c:1236: warning: Excess function parameter 'reg' description in 'calipso_req_delattr'
net/ipv6/calipso.c:1236: warning: Function parameter or member 'req' not described in 'calipso_req_delattr'
net/ipv6/calipso.c:435: warning: Excess function parameter 'audit_secid' description in 'calipso_doi_remove'
net/ipv6/calipso.c:435: warning: Function parameter or member 'audit_info' not described in 'calipso_doi_remove'

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20201028013344.931928-1-andrew@lunn.ch
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-30 12:14:23 -07:00
Andrew Lunn
f1f09df130 net: ipv6: rpl*: Fix strange kerneldoc warnings due to bad header
net/ipv6/rpl_iptunnel.c:15: warning: cannot understand function prototype: 'struct rpl_iptunnel_encap '

The header on the file containing the author copyright message uses
kerneldoc /** opener. This confuses the parser when it gets to

struct rpl_iptunnel_encap {
	struct ipv6_rpl_sr_hdr srh[0];
};

Similarly:

net//ipv6/rpl.c:10: warning: Function parameter or member 'x' not described in 'IPV6_PFXTAIL_LEN'

where IPV6_PFXTAIL_LEN is a macro definition, not a function.

Convert the header comments to a plain /* comment.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20201028013123.931816-1-andrew@lunn.ch
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-30 12:12:52 -07:00
Andrew Lunn
726e5e49c9 net: ipv4: Fix some kerneldoc warnings in TCP Low Priority
net//ipv4/tcp_lp.c:120: warning: Function parameter or member 'sk' not described in 'tcp_lp_cong_avoid'
net//ipv4/tcp_lp.c:135: warning: Function parameter or member 'sk' not described in 'tcp_lp_remote_hz_estimator'
net//ipv4/tcp_lp.c:188: warning: Function parameter or member 'sk' not described in 'tcp_lp_owd_calculator'
net//ipv4/tcp_lp.c:222: warning: Function parameter or member 'rtt' not described in 'tcp_lp_rtt_sample'
net//ipv4/tcp_lp.c:222: warning: Function parameter or member 'sk' not described in 'tcp_lp_rtt_sample'
net//ipv4/tcp_lp.c:265: warning: Function parameter or member 'sk' not described in 'tcp_lp_pkts_acked'
net//ipv4/tcp_lp.c:97: warning: Function parameter or member 'sk' not described in 'tcp_lp_init'

There are still a few kerneldoc warnings after this fix.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20201028012703.931632-1-andrew@lunn.ch
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-30 12:10:57 -07:00
Andrew Lunn
0b609b5575 net: dccp: Fix most of the kerneldoc warnings
net/dccp/ccids/ccid2.c:190: warning: Function parameter or member 'hc' not described in 'ccid2_update_used_window'
net/dccp/ccids/ccid2.c:190: warning: Function parameter or member 'new_wnd' not described in 'ccid2_update_used_window'
net/dccp/ccids/ccid2.c:360: warning: Function parameter or member 'sk' not described in 'ccid2_rtt_estimator'
net/dccp/ccids/ccid3.c:112: warning: Function parameter or member 'sk' not described in 'ccid3_hc_tx_update_x'
net/dccp/ccids/ccid3.c:159: warning: Function parameter or member 'hc' not described in 'ccid3_hc_tx_update_s'
net/dccp/ccids/ccid3.c:268: warning: Function parameter or member 'sk' not described in 'ccid3_hc_tx_send_packet'
net/dccp/ccids/ccid3.c:667: warning: Function parameter or member 'sk' not described in 'ccid3_first_li'
net/dccp/ccids/ccid3.c:85: warning: Function parameter or member 'hc' not described in 'ccid3_update_send_interval'
net/dccp/ccids/lib/loss_interval.c:85: warning: Function parameter or member 'lh' not described in 'tfrc_lh_update_i_mean'
net/dccp/ccids/lib/loss_interval.c:85: warning: Function parameter or member 'skb' not described in 'tfrc_lh_update_i_mean'
net/dccp/ccids/lib/packet_history.c:392: warning: Function parameter or member 'h' not described in 'tfrc_rx_hist_sample_rtt'
net/dccp/ccids/lib/packet_history.c:392: warning: Function parameter or member 'skb' not described in 'tfrc_rx_hist_sample_rtt'
net/dccp/feat.c:1003: warning: Function parameter or member 'dreq' not described in 'dccp_feat_server_ccid_dependencies'
net/dccp/feat.c:1040: warning: Function parameter or member 'array_len' not described in 'dccp_feat_prefer'
net/dccp/feat.c:1040: warning: Function parameter or member 'array' not described in 'dccp_feat_prefer'
net/dccp/feat.c:1040: warning: Function parameter or member 'preferred_value' not described in 'dccp_feat_prefer'
net/dccp/output.c:151: warning: Function parameter or member 'dp' not described in 'dccp_determine_ccmps'
net/dccp/output.c:242: warning: Function parameter or member 'sk' not described in 'dccp_xmit_packet'
net/dccp/output.c:305: warning: Function parameter or member 'sk' not described in 'dccp_flush_write_queue'
net/dccp/output.c:305: warning: Function parameter or member 'time_budget' not described in 'dccp_flush_write_queue'
net/dccp/output.c:378: warning: Function parameter or member 'sk' not described in 'dccp_retransmit_skb'
net/dccp/qpolicy.c:88: warning: Function parameter or member '' not described in 'dccp_qpolicy_operations'
net/dccp/qpolicy.c:88: warning: Function parameter or member '{' not described in 'dccp_qpolicy_operations'
net/dccp/qpolicy.c:88: warning: Function parameter or member 'params' not described in 'dccp_qpolicy_operations'

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20201028011412.931250-1-andrew@lunn.ch
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-30 12:08:54 -07:00
Andrew Lunn
a89a501c49 net: dcb: Fix kerneldoc warnings
net//dcb/dcbnl.c:1836: warning: Function parameter or member 'app' not described in 'dcb_getapp'
net//dcb/dcbnl.c:1836: warning: Function parameter or member 'dev' not described in 'dcb_getapp'
net//dcb/dcbnl.c:1858: warning: Function parameter or member 'dev' not described in 'dcb_setapp'
net//dcb/dcbnl.c:1858: warning: Function parameter or member 'new' not described in 'dcb_setapp'
net//dcb/dcbnl.c:1899: warning: Function parameter or member 'app' not described in 'dcb_ieee_getapp_mask'
net//dcb/dcbnl.c:1899: warning: Function parameter or member 'dev' not described in 'dcb_ieee_getapp_mask'
net//dcb/dcbnl.c:1922: warning: Function parameter or member 'dev' not described in 'dcb_ieee_setapp'
net//dcb/dcbnl.c:1922: warning: Function parameter or member 'new' not described in 'dcb_ieee_setapp'
net//dcb/dcbnl.c:1953: warning: Function parameter or member 'del' not described in 'dcb_ieee_delapp'
net//dcb/dcbnl.c:1953: warning: Function parameter or member 'dev' not described in 'dcb_ieee_delapp'
net//dcb/dcbnl.c:1986: warning: Function parameter or member 'dev' not described in 'dcb_ieee_getapp_prio_dscp_mask_map'
net//dcb/dcbnl.c:1986: warning: Function parameter or member 'p_map' not described in 'dcb_ieee_getapp_prio_dscp_mask_map'
net//dcb/dcbnl.c:2016: warning: Function parameter or member 'dev' not described in 'dcb_ieee_getapp_dscp_prio_mask_map'
net//dcb/dcbnl.c:2016: warning: Function parameter or member 'p_map' not described in 'dcb_ieee_getapp_dscp_prio_mask_map'
net//dcb/dcbnl.c:2045: warning: Function parameter or member 'dev' not described in 'dcb_ieee_getapp_default_prio_mask'

For some of these warnings, change to comments to plain comments,
since no attempt is being made to follow kerneldoc syntax.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20201028010913.930929-1-andrew@lunn.ch
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-30 11:59:54 -07:00
Andrew Lunn
7cdda1c1c5 net: nfc: Fix kerneldoc warnings
net//nfc/core.c:1046: warning: Function parameter or member 'tx_headroom' not described in 'nfc_allocate_device'
net//nfc/core.c:1046: warning: Function parameter or member 'tx_tailroom' not described in 'nfc_allocate_device'
net//nfc/core.c:198: warning: Excess function parameter 'protocols' description in 'nfc_start_poll'
net//nfc/core.c:198: warning: Function parameter or member 'im_protocols' not described in 'nfc_start_poll'
net//nfc/core.c:198: warning: Function parameter or member 'tm_protocols' not described in 'nfc_start_poll'
net//nfc/core.c:441: warning: Function parameter or member 'mode' not described in 'nfc_deactivate_target'
net//nfc/core.c:711: warning: Function parameter or member 'dev' not described in 'nfc_alloc_send_skb'
net//nfc/core.c:711: warning: Function parameter or member 'err' not described in 'nfc_alloc_send_skb'
net//nfc/core.c:711: warning: Function parameter or member 'flags' not described in 'nfc_alloc_send_skb'
net//nfc/core.c:711: warning: Function parameter or member 'sk' not described in 'nfc_alloc_send_skb'
net//nfc/digital_core.c:470: warning: Function parameter or member 'im_protocols' not described in 'digital_start_poll'
net//nfc/digital_core.c:470: warning: Function parameter or member 'nfc_dev' not described in 'digital_start_poll'
net//nfc/digital_core.c:470: warning: Function parameter or member 'tm_protocols' not described in 'digital_start_poll'
net//nfc/nci/core.c:1119: warning: Function parameter or member 'tx_headroom' not described in 'nci_allocate_device'
net//nfc/nci/core.c:1119: warning: Function parameter or member 'tx_tailroom' not described in 'nci_allocate_device'

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20201028005653.930467-1-andrew@lunn.ch
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-30 11:57:56 -07:00
Andrew Lunn
709565ae14 net: appletalk: fix kerneldoc warnings
net/appletalk/aarp.c:68: warning: Function parameter or member 'dev' not described in 'aarp_entry'
net/appletalk/aarp.c:68: warning: Function parameter or member 'expires_at' not described in 'aarp_entry'
net/appletalk/aarp.c:68: warning: Function parameter or member 'hwaddr' not described in 'aarp_entry'
net/appletalk/aarp.c:68: warning: Function parameter or member 'last_sent' not described in 'aarp_entry'
net/appletalk/aarp.c:68: warning: Function parameter or member 'next' not described in 'aarp_entry'
net/appletalk/aarp.c:68: warning: Function parameter or member 'packet_queue' not described in 'aarp_entry'
net/appletalk/aarp.c:68: warning: Function parameter or member 'status' not described in 'aarp_entry'
net/appletalk/aarp.c:68: warning: Function parameter or member 'target_addr' not described in 'aarp_entry'
net/appletalk/aarp.c:68: warning: Function parameter or member 'xmit_count' not described in 'aarp_entry'
net/appletalk/ddp.c:1422: warning: Function parameter or member 'dev' not described in 'atalk_rcv'
net/appletalk/ddp.c:1422: warning: Function parameter or member 'orig_dev' not described in 'atalk_rcv'
net/appletalk/ddp.c:1422: warning: Function parameter or member 'pt' not described in 'atalk_rcv'
net/appletalk/ddp.c:1422: warning: Function parameter or member 'skb' not described in 'atalk_rcv'

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20201028005527.930388-1-andrew@lunn.ch
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-30 11:48:17 -07:00
Andrew Lunn
294ea29113 net: netlabel: Fix kerneldoc warnings
net/netlabel/netlabel_calipso.c:376: warning: Function parameter or member 'ops' not described in 'netlbl_calipso_ops_register'

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Paul Moore <paul@paul-moore.com>
Link: https://lore.kernel.org/r/20201028005350.930299-1-andrew@lunn.ch
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-30 11:46:11 -07:00
Andrew Lunn
9d637f8113 net: l3mdev: Fix kerneldoc warning
net/l3mdev/l3mdev.c:249: warning: Function parameter or member 'arg' not described in 'l3mdev_fib_rule_match'

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20201028005059.930192-1-andrew@lunn.ch
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-30 11:43:42 -07:00
Andrew Lunn
210bba6790 net: openvswitch: Fix kerneldoc warnings
net/openvswitch/flow.c:303: warning: Function parameter or member 'key_vh' not described in 'parse_vlan_tag'
net/openvswitch/flow.c:303: warning: Function parameter or member 'skb' not described in 'parse_vlan_tag'
net/openvswitch/flow.c:303: warning: Function parameter or member 'untag_vlan' not described in 'parse_vlan_tag'
net/openvswitch/vport.c:122: warning: Function parameter or member 'parms' not described in 'ovs_vport_alloc'

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20201028004849.930094-1-andrew@lunn.ch
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-30 11:39:43 -07:00
Andrew Lunn
8756f474cb net: llc: Fix kerneldoc warnings
net/llc/llc_conn.c:917: warning: Function parameter or member 'kern' not described in 'llc_sk_alloc'
net/llc/llc_conn.c:917: warning: Function parameter or member 'prot' not described in 'llc_sk_alloc'

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20201028004644.929997-1-andrew@lunn.ch
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-30 11:34:09 -07:00
Jakub Kicinski
bfa45445be Merge branch 'markup-some-printk-like-functions'
Andrew Lunn says:

====================
Markup some printk like functions

W=1 warns of functions which look like printk but don't have
attributes so the compile can check that arguments matches the format
string.
====================

Link: https://lore.kernel.org/r/20201028003849.929490-1-andrew@lunn.ch
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-30 11:31:46 -07:00
Andrew Lunn
79b1119b85 net: tipc: Add __printf() markup to fix -Wsuggest-attribute=format
net/tipc/netlink_compat.c: In function ‘tipc_tlv_sprintf’:
net/tipc/netlink_compat.c:137:2: warning: function ‘tipc_tlv_sprintf’ might be a candidate for ‘gnu_printf’ format attribute [-Wsuggest-attribute=format]
  137 |  n = vscnprintf(buf, rem, fmt, args);

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-30 11:31:46 -07:00
Andrew Lunn
c7bb86885e net: dccp: Add __printf() markup to fix -Wsuggest-attribute=format
net/dccp/ccid.c: In function ‘ccid_kmem_cache_create’:
net/dccp/ccid.c:85:2: warning: function ‘ccid_kmem_cache_create’ might be a candidate for ‘gnu_printf’ format attribute [-Wsuggest-attribute=format]
   85 |  vsnprintf(slab_name_fmt, CCID_SLAB_NAME_LENGTH, fmt, args);

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-30 11:31:46 -07:00
Andrew Lunn
b3b7e64bcb net: tipc: Fix parameter types passed to %s formater
Now that the compiler is performing printf checking, we get the warning:

net/tipc/netlink_compat.c: In function ‘tipc_nl_compat_link_stat_dump’:
net/tipc/netlink_compat.c:591:39: warning: format ‘%s’ expects argument of type ‘char *’, but argument 3 has type ‘void *’ [-Wformat=]
  591 |  tipc_tlv_sprintf(msg->rep, "\nLink <%s>\n",
      |                                      ~^
      |                                       |
      |                                       char *
      |                                      %p
  592 |     nla_data(link[TIPC_NLA_LINK_NAME]));
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      |     |
      |     void *

There is no nla_string(), so cast to a char *.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20201028004333.929816-1-andrew@lunn.ch
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-30 11:29:49 -07:00
Jakub Kicinski
23306008ed Merge branch 'selftests-net-bridge-add-tests-for-igmpv3'
Nikolay Aleksandrov says:

====================
selftests: net: bridge: add tests for IGMPv3

This set adds tests for the bridge's new IGMPv3 support. The tests use
precooked packets which are sent via mausezahn and the resulting state
after each test is checked for proper X,Y sets, (*,G) source list, source
list entry timers, (S,G) existence and flags, packet forwarding and
blocking, exclude group expiration and (*,G) auto-add. The first 3 patches
prepare the existing IGMPv2 tests, then patch 4 adds new helpers which are
used throughout the rest of the v3 tests.
The following new tests are added:
 - base case: IGMPv3 report 239.10.10.10 is_include (A)
 - include -> allow report
 - include -> is_include report
 - include -> is_exclude report
 - include -> to_exclude report
 - exclude -> allow report
 - exclude -> is_include report
 - exclude -> is_exclude report
 - exclude -> to_exclude report
 - include -> block report
 - exclude -> block report
 - exclude timeout (move to include + entry deletion)
 - S,G port entry automatic add to a *,G,exclude port

The variable names and set notation are the same as per RFC 3376,
for more information check RFC 3376 sections 4.2.15 and 6.4.1.
MLDv2 tests will be added by a separate patch-set.
====================

Link: https://lore.kernel.org/r/20201027185934.227040-1-razor@blackwall.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-30 10:50:32 -07:00
Nikolay Aleksandrov
414ea37541 selftests: net: bridge: add test for igmpv3 *,g auto-add
When we have *,G ports in exclude mode and a new S,G,port is added
the kernel has to automatically create an S,G entry for each exclude
port to get proper forwarding.

Signed-off-by: Nikolay Aleksandrov <nikolay@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-30 10:50:29 -07:00
Nikolay Aleksandrov
18f66c96ea selftests: net: bridge: add test for igmpv3 exclude timeout
Test that when a group in exclude mode expires it changes mode to
include and the blocked entries are deleted.

Signed-off-by: Nikolay Aleksandrov <nikolay@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-30 10:50:29 -07:00
Nikolay Aleksandrov
9eb58e0747 selftests: net: bridge: add test for igmpv3 exc -> block report
The test checks for the following case:
   state          report        result                  action
 EXCLUDE (X,Y)  BLOCK (A)     EXCLUDE (X+(A-Y),Y)      (A-X-Y)=Group Timer
                                                       Send Q(G,A-Y)

Signed-off-by: Nikolay Aleksandrov <nikolay@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-30 10:50:29 -07:00
Nikolay Aleksandrov
80899f1b1c selftests: net: bridge: add test for igmpv3 inc -> block report
The test checks for the following case:
    state          report        result                  action
  INCLUDE (A)    BLOCK (B)     INCLUDE (A)              Send Q(G,A*B)

Signed-off-by: Nikolay Aleksandrov <nikolay@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-30 10:50:29 -07:00
Nikolay Aleksandrov
65bfc146ab selftests: net: bridge: add test for igmpv3 exc -> to_exclude report
The test checks for the following case:
    state          report        result                  action
  EXCLUDE (X,Y)  TO_EX (A)     EXCLUDE (A-Y,Y*A)        (A-X-Y)=Group Timer
                                                        Delete (X-A)
                                                        Delete (Y-A)
                                                        Send Q(G,A-Y)
                                                        Group Timer=GMI

Signed-off-by: Nikolay Aleksandrov <nikolay@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-30 10:50:29 -07:00
Nikolay Aleksandrov
7b4f713822 selftests: net: bridge: add test for igmpv3 exc -> is_exclude report
The test checks for the following case:
     state          report        result                  action
   EXCLUDE (X,Y)  IS_EX (A)     EXCLUDE (A-Y,Y*A)        (A-X-Y)=GMI
                                                         Delete (X-A)
                                                         Delete (Y-A)
                                                         Group Timer=GMI

Signed-off-by: Nikolay Aleksandrov <nikolay@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-30 10:50:28 -07:00
Nikolay Aleksandrov
e7e7ab7c00 selftests: net: bridge: add test for igmpv3 exc -> is_include report
The test checks for the following case:
    state          report        result                  action
   EXCLUDE (X,Y)  IS_IN (A)     EXCLUDE (X+A,Y-A)       (A)=GMI

Signed-off-by: Nikolay Aleksandrov <nikolay@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-30 10:50:28 -07:00
Nikolay Aleksandrov
eecd8cfdff selftests: net: bridge: add test for igmpv3 exc -> allow report
The test checks for the following case:
   state          report        result                  action
  EXCLUDE (X,Y)  ALLOW (A)     EXCLUDE (X+A,Y-A)       (A)=GMI

Signed-off-by: Nikolay Aleksandrov <nikolay@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-30 10:50:28 -07:00
Nikolay Aleksandrov
735af7bec0 selftests: net: bridge: add test for igmpv3 inc -> to_exclude report
The test checks for the following case:
  state          report        result                  action
 INCLUDE (A)    TO_EX (B)     EXCLUDE (A*B,B-A)       (B-A)=0
                                                      Delete (A-B)
                                                      Send Q(G,A*B)
                                                      Group Timer=GMI

Signed-off-by: Nikolay Aleksandrov <nikolay@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-30 10:50:28 -07:00
Nikolay Aleksandrov
3c8b9fdad0 selftests: net: bridge: add test for igmpv3 inc -> is_exclude report
The test checks for the following case:
   state          report        result                 action
  INCLUDE (A)    IS_EX (B)     EXCLUDE (A*B,B-A)      (B-A)=0
                                                      Delete (A-B)
                                                      Group Timer=GMI

Signed-off-by: Nikolay Aleksandrov <nikolay@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-30 10:50:28 -07:00
Nikolay Aleksandrov
4702177106 selftests: net: bridge: add test for igmpv3 inc -> is_include report
The test checks for the following case:
   state          report        result                 action
 INCLUDE (A)    IS_IN (B)     INCLUDE (A+B)            (B)=GMI

Signed-off-by: Nikolay Aleksandrov <nikolay@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-30 10:50:28 -07:00
Nikolay Aleksandrov
98ae11cf81 selftests: net: bridge: add tests for igmpv3 is_include and inc -> allow reports
First we test is_include/include mode then we build on that with allow
effectively achieving:
  state          report        result                 action
 INCLUDE (A)    ALLOW (B)    INCLUDE (A+B)           (B)=GMI

Signed-off-by: Nikolay Aleksandrov <nikolay@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-30 10:50:28 -07:00
Nikolay Aleksandrov
68d3163a4b selftests: net: bridge: igmp: add IGMPv3 entries' state helpers
Add helpers which will be used in subsequent tests, they are:
 - check_sg_entries: check for proper source list and S,G entry
   existence
 - check_sg_fwding: check for proper traffic forwarding/blocking
 - check_sg_state: check for proper blocked/forwarding entry state

Signed-off-by: Nikolay Aleksandrov <nikolay@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-30 10:50:28 -07:00
Nikolay Aleksandrov
f0e260db4c selftests: net: bridge: igmp: check for specific udp ip protocol
We have to specifically check for udp protocol in addition to the mac
address because in IGMPv3 tests group-specific queries will use the same
mac address.

Signed-off-by: Nikolay Aleksandrov <nikolay@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-30 10:50:28 -07:00
Nikolay Aleksandrov
79ae3e256a selftests: net: bridge: igmp: add support for packet source address
Add support for one more argument which specifies the source address to
use. It will be later used for IGMPv3 S,G entry testing.

Signed-off-by: Nikolay Aleksandrov <nikolay@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-30 10:50:28 -07:00
Nikolay Aleksandrov
7afc9d8f82 selftests: net: bridge: rename current igmp tests to igmpv2
To prepare the bridge_igmp.sh for IGMPv3 we need to rename the
current test to IGMPv2.

Signed-off-by: Nikolay Aleksandrov <nikolay@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-30 10:50:28 -07:00