ipxfrm: Replace STRBUF_CAT macro with strlcat()

Signed-off-by: Phil Sutter <phil@nwl.cc>

Convert harmful calls to strncpy() to strlcpy()

This patch converts spots where manual buffer termination was missing to
strlcpy() since that does what is needed.

Signed-off-by: Phil Sutter <phil@nwl.cc>

Convert the obvious cases to strlcpy()

This converts the typical idiom of manually terminating the buffer after
a call to strncpy().

Signed-off-by: Phil Sutter <phil@nwl.cc>

utils: Implement strlcpy() and strlcat()

By making use of strncpy(), both implementations are really simple so
there is no need to add libbsd as additional dependency.

Signed-off-by: Phil Sutter <phil@nwl.cc>

link_gre6: Print the tunnel's tclass setting

Print the value analogous to flowlabel. While being at it, also break
the overlong lines to not exceed 80 characters boundary.

Signed-off-by: Phil Sutter <phil@nwl.cc>

link_gre6: Fix for changing tclass/flowlabel

When trying to change tclass or flowlabel of a GREv6 tunnel which has
the respective value set already, the code accidentally bitwise OR'ed
the old and the new value, leading to unexpected results. Fix this by
clearing the relevant bits of flowinfo variable prior to assigning the
new value.

Fixes: af89576d7a8c4 ("iproute2: GRE over IPv6 tunnel support.")
Signed-off-by: Phil Sutter <phil@nwl.cc>

man: add documentation for seg6 l2encap mode

This patch adds documentation for the seg6 L2ENCAP encapsulation mode.

Signed-off-by: David Lebrun <david.lebrun@uclouvain.be>

iproute: add support for seg6 l2encap mode

This patch adds support for the L2ENCAP seg6 mode, enabling to encapsulate
L2 frames within SRv6 packets.

Signed-off-by: David Lebrun <david.lebrun@uclouvain.be>

man: tc-ife: add default type note

This patch updates the tc-ife man page that the default IFE ethertype
will be used if it's not specified.

Signed-off-by: Alexander Aring <aring@mojatatu.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>

tc: m_ife: report about kernels default type

This patch will report about if the ethertype for IFE is not specified
that the default IFE type is used.

Signed-off-by: Alexander Aring <aring@mojatatu.com>

tc: m_ife: print IEEE ethertype format

This patch uses the usually IEEE format to display an ethertype which is
4-digits and every digit in upper case.

Signed-off-by: Alexander Aring <aring@mojatatu.com>

tc: m_ife: allow ife type to zero

This patch allows to set an ethertype for IFE which is zero. There is no
kernel side validation which forbids a type to zero.

Signed-off-by: Alexander Aring <aring@mojatatu.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>

update headers from net-next

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>

Merge branch 'master' into net-next

ss: Fix for added diag support check

Commit 9f66764e308e9 ("libnetlink: Add test for error code returned from
netlink reply") changed rtnl_dump_filter_l() to return an error in case
NLMSG_DONE would contain one, even if it was ENOENT.

This in turn breaks ss when it tries to dump DCCP sockets on a system
without support for it: The function tcp_show(), which is shared between
TCP and DCCP, will start parsing /proc since inet_show_netlink() returns
an error - yet it parses /proc/net/tcp which doesn't make sense for DCCP
sockets at all.

On my system, a call to 'ss' without further arguments prints the list
of connected TCP sockets twice.

Fix this by introducing a dedicated function dccp_show() which does not
have a fallback to /proc, just like sctp_show(). And since tcp_show()
is no longer "multi-purpose", drop it's socktype parameter.

Fixes: 9f66764e308e9 ("libnetlink: Add test for error code returned from netlink reply")
Signed-off-by: Phil Sutter <phil@nwl.cc>

devlink: header update

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>

Merge branch 'master' into net-next

tc: use named initializer for default mqprio options

Use C99 initializer

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>

lib/libnetlink: Don't pass NULL parameter to memcpy()

Both addattr_l() and rta_addattr_l() may be called with NULL data
pointer and 0 alen parameters. Avoid calling memcpy() in that case.

Signed-off-by: Phil Sutter <phil@nwl.cc>

lib/fs: Fix and simplify make_path()

Calling stat() before mkdir() is racey: The entry might change in
between. Also, the call to stat() seems to exist only to check if the
directory exists already. So simply call mkdir() unconditionally and
catch only errors other than EEXIST.

Signed-off-by: Phil Sutter <phil@nwl.cc>

lib/bpf: Check return value of write()

This is merely to silence the compiler warning. If write to stderr
failed, assume that printing an error message will fail as well so don't
even try.

Signed-off-by: Phil Sutter <phil@nwl.cc>

netem/maketable: Check return value of fscanf()

Signed-off-by: Phil Sutter <phil@nwl.cc>

ss: Make sure scanned index value to unix_state_map is sane

Signed-off-by: Phil Sutter <phil@nwl.cc>

ss: Make struct tcpstat fields 'timer' and 'timeout' unsigned

Both 'timer' and 'timeout' variables of struct tcpstat are either
scanned as unsigned values from /proc/net/tcp{,6} or copied from
'idiag_timer' and 'idiag_expries' fields of struct inet_diag_msg, which
itself are unsigned. Therefore they may be unsigned as well, which
eliminates the need to check for negative values.

Signed-off-by: Phil Sutter <phil@nwl.cc>

bpf: drop unused parameter to bpf_report_map_in_map

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>

libnetlink: drop unused parameter to rtnl_dump_done

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>

rdma: fix duplicate initialization in port_names

Build with warnings enable spotted this.
link.c:51:58: note: (near initialization for ‘rdma_port_names[23]’)
   rdma_port_names[] = { RDMA_PORT_FLAGS(RDMA_BITMAP_NAMES) };

Assume that fields were in order and 25 is the missing value.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>

lib/ll_map: Choose size of new cache items at run-time

Instead of having a fixed buffer of 16 bytes for the interface name,
tailor size of new ll_cache entry using the interface name's actual
length. This also makes sure the following call to strcpy() is safe.

Signed-off-by: Phil Sutter <phil@nwl.cc>

tc/m_xt: Fix for potential string buffer overflows

- Use strncpy() when writing to target->t->u.user.name and make sure the
  final byte remains untouched (xtables_calloc() set it to zero).
- 'tname' length sanitization was completely wrong: If it's length
  exceeded the 16 bytes available in 'k', passing a length value of 16
  to strncpy() would overwrite the previously NULL'ed 'k[15]'. Also, the
  sanitization has to happen if 'tname' is exactly 16 bytes long as
  well.

Signed-off-by: Phil Sutter <phil@nwl.cc>

lnstat_util: Simplify alloc_and_open() a bit

Relying upon callers and using unsafe strcpy() is probably not the best
idea. Aside from that, using snprintf() allows to format the string for
lf->path in one go.

Signed-off-by: Phil Sutter <phil@nwl.cc>

lib/inet_proto: Review inet_proto_{a2n,n2a}()

The original intent was to make sure strings written by those functions
are NUL-terminated at all times, though it was suggested to get rid of
the 15 char protocol name limit as well which this patch accomplishes.

In addition to that, simplify inet_proto_a2n() a bit: Use the error
checking in get_u8() to find out whether passed 'buf' contains a valid
decimal number instead of checking the first character's value manually.

Signed-off-by: Phil Sutter <phil@nwl.cc>

lib/fs: Fix format string in find_fs_mount()

A field width of 4096 allows fscanf() to store that amount of characters
into the given buffer, though that doesn't include the terminating NULL
byte. Decrease the value by one to leave space for it.

Signed-off-by: Phil Sutter <phil@nwl.cc>

ipntable: Avoid memory allocation for filter.name

The original issue was that filter.name might end up unterminated if
user provided string was too long. But in fact it is not necessary to
copy the commandline parameter at all: just make filter.name point to it
instead.

Signed-off-by: Phil Sutter <phil@nwl.cc>

tipc/bearer: Prevent NULL pointer dereference

Signed-off-by: Phil Sutter <phil@nwl.cc>

tc/tc_filter: Make sure filter name is not empty

The later check for 'k[0] != 0' requires a non-empty filter name,
otherwise NULL pointer dereference in 'q' might happen.

Signed-off-by: Phil Sutter <phil@nwl.cc>

tc/q_netem: Don't dereference possibly NULL pointer

Assuming 'opt' might be NULL, move the call to RTA_PAYLOAD to after the
check since it dereferences its parameter.

Signed-off-by: Phil Sutter <phil@nwl.cc>

ifstat, nstat: Check fdopen() return value

Prevent passing NULL FILE pointer to fgets() later.

Fix both tools in a single patch since the code changes are basically
identical.

Signed-off-by: Phil Sutter <phil@nwl.cc>

ss: fix help/man TCP-STATE description for listening

There's some misleading information in --help and ss(8) manpage about
TCP-STATE named 'listen'.
ss doesn't know such a state, but it knows 'listening' state.

$ ss -tua state listen
ss: wrong state name: listen

$ ss -tua state listening
[...]

Addresses: https://bugs.debian.org/872990
Reported-by: Pavel Lyulchenko <p.lyulchenko@gmail.com>
Signed-off-by: Andreas Henriksson <andreas@fatal.se>

gre: add support for ERSPAN tunnel

The patch adds ERSPAN type II tunnel support. The implementation is
based on the draft at
 https://tools.ietf.org/html/draft-foschiano-erspan-01.

One of the purposes is for Linux box to be able to receive ERSPAN
monitoring traffic sent from the Cisco switch, by creating a ERSPAN
tunnel device. In addition, the patch also adds ERSPAN TX, so traffic
can also be encapsulated into ERSPAN and sent out.

The implementation reuses the key as ERSPAN session ID, and
field 'erspan' as ERSPAN Index fields:
./ip link add dev ers11 type erspan seq key 100 erspan 123 \
local 172.16.1.200 remote 172.16.1.100

Signed-off-by: William Tu <u9012063@gmail.com>
Signed-off-by: Meenakshi Vohra <mvohra@vmware.com>

add ERSPAN headers

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>

config: put CFLAGS/LDLIBS in config.mk

This renames Config to config.mk and includes more Make input.
Now configure generates all the required CFLAGS and LDLIBS for
the optional libraries.

Also, use pkg-config to test for libelf, rather than using a test
program. This makes it consistent with other libraries.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>

Merge branch 'master' into net-next

lib/bpf: Don't leak fp in bpf_find_mntpt()

If fopen() succeeded but len != PATH_MAX, the function leaks the open
FILE pointer. Fix this by checking len value before calling fopen().

Signed-off-by: Phil Sutter <phil@nwl.cc>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>

devlink: Check return code of strslashrsplit()

This function shouldn't fail because all callers of
__dl_argv_handle_port() make sure the passed string contains enough
slashes already, but better make sure if this changes in future the
function won't access uninitialized data.

Signed-off-by: Phil Sutter <phil@nwl.cc>

iplink_vrf: Complain if main table is not found

Signed-off-by: Phil Sutter <phil@nwl.cc>
Acked-by: David Ahern <dsahern@gmail.com>

iproute: Check mark value input

Signed-off-by: Phil Sutter <phil@nwl.cc>

tc/q_multiq: Don't pass garbage in TCA_OPTIONS

multiq_parse_opt() doesn't change 'opt' at all. So at least make sure
it doesn't fill TCA_OPTIONS attribute with garbage from stack.

Signed-off-by: Phil Sutter <phil@nwl.cc>

netem/maketable: Check return value of fstat()

Otherwise info.st_size may contain garbage.

Signed-off-by: Phil Sutter <phil@nwl.cc>

ss: Use C99 initializer in netlink_show_one()

This has the additional benefit of initializing st.ino to zero which is
used later in is_sctp_assoc() function.

Signed-off-by: Phil Sutter <phil@nwl.cc>

ipmaddr: Avoid accessing uninitialized data

Looks like this can only happen if /proc/net/igmp is malformed, but
better be sure.

Signed-off-by: Phil Sutter <phil@nwl.cc>

iplink_can: Prevent overstepping array bounds

can_state_names array contains at most CAN_STATE_MAX fields, so allowing
an index to it to be equal to that number is wrong. While here, also
make sure the array is indeed that big so nothing bad happens if
CAN_STATE_MAX ever increases.

Signed-off-by: Phil Sutter <phil@nwl.cc>

ipaddress: Avoid accessing uninitialized variable lcl

If no address was given, ipaddr_modify() accesses uninitialized data
when assigning to req.ifa.ifa_prefixlen.

Signed-off-by: Phil Sutter <phil@nwl.cc>

Merge branch 'master' into net-next

tc/m_gact: Drop dead code

The use of 'ok' variable in parse_gact() is ineffective: The second
conditional increments it either if *argv is 'gact' or if
parse_action_control() doesn't fail (in which case exit() is called).
So this is effectively an unconditional increment and since no decrement
happens anywhere, all remaining checks for 'ok != 0' can be dropped.

Signed-off-by: Phil Sutter <phil@nwl.cc>

ss: Drop useless assignment

After '*b = *a', 'b->next' already has the same value as 'a->next'.

Signed-off-by: Phil Sutter <phil@nwl.cc>

ss: Skip useless check in parse_hostcond()

The passed 'addr' parameter is dereferenced by caller before and in
parse_hostcond() multiple times before this check, so assume it is
always true.

Signed-off-by: Phil Sutter <phil@nwl.cc>

lib/rt_names: Drop dead code in rtnl_rttable_n2a()

Since 'id' is 32bit unsigned, it can never exceed RT_TABLE_MAX (which is
defined to 0xFFFFFFFF). Therefore drop that never matching conditional.

Signed-off-by: Phil Sutter <phil@nwl.cc>

iproute: Fix for missing 'Oifs:' display

Covscan complained about dead code but after reading it, I assume the
author's intention was to prefix the interface list with 'Oifs: '.
Initializing first to 1 and setting it to 0 after above prefix was
printed should fix it.

Signed-off-by: Phil Sutter <phil@nwl.cc>

ipntable: No need to check and assign to parms_rta

This variable is initialized at declaration and nowhere else does any
assignment to it happen, so just drop the check.

Signed-off-by: Phil Sutter <phil@nwl.cc>

devlink: No need for this self-assignment

dl_argv_handle_both() will either assign to handle_bit or error out in
which case the variable is not used by the caller.

Signed-off-by: Phil Sutter <phil@nwl.cc>
Acked-by: Jiri Pirko <jiri@mellanox.com>

rdma: Add initial manual for the tool

Signed-off-by: Leon Romanovsky <leonro@mellanox.com>

rdma: Add json output to link object

An example for the JSON output for two devices system.

root@mtr-leonro:~# rdma link -d -p -j
[{
        "ifindex": 1,
        "port": 1,
        "ifname": "mlx5_0/1",
        "subnet_prefix": "fe80:0000:0000:0000",
        "lid": 13399,
        "sm_lid": 49151,
        "lmc": 0,
        "state": "ACTIVE",
        "physical_state": "LINK_UP",
        "caps": ["AUTO_MIG"
        ]
    },{
        "ifindex": 2,
        "port": 1,
        "ifname": "mlx5_1/1",
        "subnet_prefix": "fe80:0000:0000:0000",
        "lid": 13400,
        "sm_lid": 49151,
        "lmc": 0,
        "state": "ACTIVE",
        "physical_state": "LINK_UP",
        "caps": ["AUTO_MIG"
        ]
    }
]

Signed-off-by: Leon Romanovsky <leonro@mellanox.com>

rdma: Implement json output for dev object

The example output for machine with two devices

root@mtr-leonro:~# rdma dev -j -p
[{
"ifindex": 1,
"ifname": "mlx5_0",
"node_type": "ca",
"fw": "2.8.9999",
"node_guid": "5254:00c0:fe12:3457",
"sys_image_guid": 5254:00c0:fe12:3457",
"caps": [ "BAD_PKEY_CNTR", "BAD_QKEY_CNTR", "CHANGE_PHY_POR",
  "PORT_ACTIVE_EVENT", "SYS_IMAGE_GUID", "RC_RNR_NAK_GEN",
  "MEM_WINDOW", "UD_IP_CSUM", "UD_TSO", "XRC",
  "MEM_MGT_EXTENSIONS", "BLOCK_MULTICAST_LOOPBACK",
  "MEM_WINDOW_TYPE_2B", "RAW_IP_CSUM",
  "MANAGED_FLOW_STEERING", "RESIZE_MAX_WR" ]
},{
"ifindex": 2,
"ifname": mlx5_1,
"node_type": "ca",
"fw": "2.8.9999",
"node_guid": "5254:00c0:fe12:3458",
"sys_image_guid": "5254:00c0:fe12:3458",
"caps": [ "BAD_PKEY_CNTR", "BAD_QKEY_CNTR", "CHANGE_PHY_POR",
  "PORT_ACTIVE_EVENT", "SYS_IMAGE_GUID", "RC_RNR_NAK_GEN",
  "MEM_WINDOW", "UD_IP_CSUM", "UD_TSO", "XRC",
  "MEM_MGT_EXTENSIONS", "BLOCK_MULTICAST_LOOPBACK",
  "MEM_WINDOW_TYPE_2B", "RAW_IP_CSUM",
  "MANAGED_FLOW_STEERING", "RESIZE_MAX_WR" ]
}
]

Signed-off-by: Leon Romanovsky <leonro@mellanox.com>

rdma: Add json and pretty outputs

Signed-off-by: Leon Romanovsky <leonro@mellanox.com>

rdma: Add link object

Link (port) object represent struct ib_port to the user space.

Link properties:
 * Port capabilities
 * IB subnet prefix
 * LID, SM_LID and LMC
 * Port state
 * Physical state

Signed-off-by: Leon Romanovsky <leonro@mellanox.com>

rdma: Add dev object

Device (dev) object represents struct ib_device to the user space.

Device properties:
 * Device capabilities
 * FW version to the device output
 * node_guid and sys_image_guid
 * node_type

Signed-off-by: Leon Romanovsky <leonro@mellanox.com>

rdma: Add basic infrastructure for RDMA tool

RDMA devices are cross-functional devices from one side,
but very tailored for the specific markets from another.

Such diversity caused to spread of RDMA related configuration
across various tools, e.g. devlink, ip, ethtool, ib specific and
vendor specific solutions.

This patch adds ability to fill device and port information
by reading RDMA netlink.

Signed-off-by: Leon Romanovsky <leonro@mellanox.com>

utils: Move BIT macro to common header

BIT() macro was implemented and used by devlink for now, but following
patches of rdmatool will reuse the same macro, so put it in common
header file.

Signed-off-by: Leon Romanovsky <leonro@mellanox.com>

update kernel headers from net-next

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>

Merge branch 'master' into net-next

tipc/bearer: Fix resource leak in error path

Signed-off-by: Phil Sutter <phil@nwl.cc>

ss: Fix potential memleak in unix_stats_print()

Fixes: 2d0e538f3e1cd ("ss: Drop list traversal from unix_stats_print()")
Signed-off-by: Phil Sutter <phil@nwl.cc>

ifstat: Fix memleak in dump_kern_db() for json output

Looks like this was forgotten when converting to common json output
formatter.

Fixes: fcc16c2287bf8 ("provide common json output formatter")
Signed-off-by: Phil Sutter <phil@nwl.cc>

ifstat: Fix memleak in error case

Signed-off-by: Phil Sutter <phil@nwl.cc>

ipvrf: Fix error path of vrf_switch()

Apart from trying to close(-1), this also leaked memory.

Signed-off-by: Phil Sutter <phil@nwl.cc>

tc/em_ipset: Don't leak sockfd on error path

Signed-off-by: Phil Sutter <phil@nwl.cc>

ss: Don't leak fd in tcp_show_netlink_file()

Signed-off-by: Phil Sutter <phil@nwl.cc>

iproute_lwtunnel: csum_mode value checking was ineffective

ila_csum_name2mode() returning -1 on error but being declared as
returning __u8 doesn't make much sense. Change the code to correctly
detect this issue. Checking for __u8 overruns shouldn't be necessary
though since ila_csum_name2mode() return values are well-defined.

Signed-off-by: Phil Sutter <phil@nwl.cc>

iproute_lwtunnel: Argument to strerror must be positive

Signed-off-by: Phil Sutter <phil@nwl.cc>

tipc/node: Fix socket fd check in cmd_node_get_addr()

socket() returns -1 on error, not 0.

Signed-off-by: Phil Sutter <phil@nwl.cc>

ifcfg: Quote left-hand side of [ ] expression

This prevents word-splitting and therefore leads to more accurate error
message in case 'grep -c' prints something other than a number.

Signed-off-by: Phil Sutter <phil@nwl.cc>

examples: Some shell fixes to cbq.init

This addresses the following issues:

- $@ is an array, so don't use it in quoted strings - use $* instead.

- Add missing quotes to components of [ ] expressions. These are not
  strictly necessary since the output of 'wc -l' should be a single word
  only, but in case of errors, bash prints "integer expression expected"
  instead of "too many arguments".

- Use -print0/-0 when piping from find to xargs to allow for filenames
  which contain whitespace.

- Quote arguments to 'eval' to prevent word-splitting.

Signed-off-by: Phil Sutter <phil@nwl.cc>

libnetlink: Fix extack attribute parsing

Initialize tb in nl_dump_ext_err since not all attributes will be
sent in the messages.

Add error checking on mnl_attr_parse and print messages on the off
chance the ext ack attributes fail to validate.

Signed-off-by: David Ahern <dsahern@gmail.com>

ip: iplink_vlan.c: add json output support

Schema:
{
    "protocol": {
        "type": "string",
        "attr": "IFLA_VLAN_PROTOCOL"
    },
    "id": {
        "type": "uint",
        "attr": "IFLA_VLAN_ID"
    },
    "flags": {
        "type": "array",
        "attr": "IFLA_VLAN_FLAGS",
        "array": [
            {
                "type": "string"
            }
        ]
    },
    "ingress_qos": {
        "type": "array",
        "attr": "IFLA_VLAN_INGRESS_QOS",
        "array": [
            {
                "type": "dict",
                "dict": {
                    "from": {
                        "type": "uint"
                    },
                    "to": {
                        "type": "uint"
                    }
                }
            }
        ]
    },
    "egress_qos": {
        "type": "array",
        "attr": "IFLA_VLAN_EGRESS_QOS",
        "array": [
            {
                "type": "dict",
                "dict": {
                    "from": {
                        "type": "uint"
                    },
                    "to": {
                        "type": "uint"
                    }
                }
            }
        ]
    }
}

$ ip link add name eth0.42 link eth0 type vlan id 42
$ ip -details -json link show
[{
        "ifindex": 30,
        "ifname": "eth0.42",
        "link": "eth0",
        "flags": ["BROADCAST","MULTICAST"],
        "mtu": 1500,
        "qdisc": "noop",
        "operstate": "DOWN",
        "linkmode": "DEFAULT",
        "group": "default",
        "link_type": "ether",
        "address": "08:00:27:db:31:88",
        "broadcast": "ff:ff:ff:ff:ff:ff",
        "promiscuity": 0,
        "linkinfo": {
            "info_kind": "vlan",
            "info_data": {
                "protocol": "802.1Q",
                "id": 42,
                "flags": ["REORDER_HDR"]
            }
        },
        "inet6_addr_gen_mode": "eui64",
        "num_tx_queues": 1,
        "num_rx_queues": 1,
        "gso_max_size": 65536,
        "gso_max_segs": 65535
    }
]

Signed-off-by: Julien Fortin <julien@cumulusnetworks.com>

ip: link_macvlan.c: add json output support

Schema:
{
    "mode": {
        "type": "string",
        "attr": "IFLA_MACVLAN_MODE"
    },
    "nopromisc": {
        "type": "bool",
        "attr": "MACVLAN_FLAG_NOPROMISC"
    },
    "macaddr_count": {
        "type": "int",
        "attr": "IFLA_MACVLAN_MACADDR_COUNT"
    },
    "macaddr_data": {
        "type": "array",
        "attr": "IFLA_MACVLAN_MACADDR_DATA",
        "array": [
            {
                "type": "string"
            }
        ]
    },
}

$ ip link add name peth0 link eth0 type macvlan
$ ip -details -json link show peth0
[{
        "ifindex": 26,
        "ifname": "peth0",
        "link": "eth0",
        "flags": ["BROADCAST","MULTICAST"],
        "mtu": 1500,
        "qdisc": "noop",
        "operstate": "DOWN",
        "linkmode": "DEFAULT",
        "group": "default",
        "link_type": "ether",
        "address": "7a:84:48:3e:7b:1c",
        "broadcast": "ff:ff:ff:ff:ff:ff",
        "promiscuity": 0,
        "linkinfo": {
            "info_kind": "macvlan",
            "info_data": {
                "mode": "vepa"
            }
        },
        "inet6_addr_gen_mode": "eui64",
        "num_tx_queues": 1,
        "num_rx_queues": 1,
        "gso_max_size": 65536,
        "gso_max_segs": 65535
    }
]

Signed-off-by: Julien Fortin <julien@cumulusnetworks.com>

ip: link_vti6.c: add json output support

Schema:
{
    "remote": {
        "type": "string",
        "attr": "IFLA_VTI_REMOTE"
    },
    "local": {
        "type": "string",
        "attr": "IFLA_VTI_LOCAL"
    },
    "link": {
        "type": "string",
        "attr": "IFLA_VTI_LINK",
        "mutually_exclusive": {
            "link_index": {
                "type": "uint",
            }
        }
    },
    "ikey": {
        "type": "string",
        "attr": "IFLA_VTI_IKEY"
    },
    "okey": {
        "type": "string",
        "attr": "IFLA_VTI_OKEY"
    }
}

➜  ~ ip -6 tunnel add name vti6 mode vti6 local 2001:db8:1::1/64 remote
2001:0db8:85a3:0000:0000:8a2e:0370:7334
➜  ~ ip link show
10: ip6tnl0@NONE: <NOARP> mtu 1452 qdisc noop state DOWN mode DEFAULT
group default
    link/tunnel6 :: brd ::
11: ip6_vti0@NONE: <NOARP> mtu 1500 qdisc noop state DOWN mode DEFAULT
group default
    link/tunnel6 :: brd ::
12: vti6@NONE: <POINTOPOINT,NOARP> mtu 1500 qdisc noop state DOWN mode
DEFAULT group default
    link/tunnel6 2001:db8:1::1 peer 2001:db8:85a3::8a2e:370:7334
➜  ~ ./ip -details -json link show
[{
        "ifindex": 10,
        "ifname": "ip6tnl0",
        "link": null,
        "flags": ["NOARP"],
        "mtu": 1452,
        "qdisc": "noop",
        "operstate": "DOWN",
        "linkmode": "DEFAULT",
        "group": "default",
        "link_type": "tunnel6",
        "address": "::",
        "broadcast": "::",
        "promiscuity": 0,
        "linkinfo": {
            "info_kind": "ip6tnl",
            "info_data": {
                "proto": "ip6ip6",
                "remote": "::",
                "local": "::",
                "encap_limit": 0,
                "ttl": 0,
                "flowinfo_tclass": "0x00",
                "flowlabel": "0x00000",
                "flowinfo": "0x00000000"
            }
        },
        "inet6_addr_gen_mode": "eui64",
        "num_tx_queues": 1,
        "num_rx_queues": 1,
        "gso_max_size": 65536,
        "gso_max_segs": 65535
    },{
        "ifindex": 11,
        "ifname": "ip6_vti0",
        "link": null,
        "flags": ["NOARP"],
        "mtu": 1500,
        "qdisc": "noop",
        "operstate": "DOWN",
        "linkmode": "DEFAULT",
        "group": "default",
        "link_type": "tunnel6",
        "address": "::",
        "broadcast": "::",
        "promiscuity": 0,
        "linkinfo": {
            "info_kind": "vti6",
            "info_data": {
                "remote": "::",
                "local": "::",
                "ikey": "0.0.0.0",
                "okey": "0.0.0.0"
            }
        },
        "inet6_addr_gen_mode": "eui64",
        "num_tx_queues": 1,
        "num_rx_queues": 1,
        "gso_max_size": 65536,
        "gso_max_segs": 65535
    },{
        "ifindex": 12,
        "ifname": "vti6",
        "link": null,
        "flags": ["POINTOPOINT","NOARP"],
        "mtu": 1500,
        "qdisc": "noop",
        "operstate": "DOWN",
        "linkmode": "DEFAULT",
        "group": "default",
        "link_type": "tunnel6",
        "address": "2001:db8:1::1",
        "link_pointtopoint": true,
        "broadcast": "2001:db8:85a3::8a2e:370:7334",
        "promiscuity": 0,
        "linkinfo": {
            "info_kind": "vti6",
            "info_data": {
                "remote": "2001:db8:85a3::8a2e:370:7334",
                "local": "2001:db8:1::1",
                "ikey": "0.0.0.0",
                "okey": "0.0.0.0"
            }
        },
        "inet6_addr_gen_mode": "eui64",
        "num_tx_queues": 1,
        "num_rx_queues": 1,
        "gso_max_size": 65536,
        "gso_max_segs": 65535
    }
]

Signed-off-by: Julien Fortin <julien@cumulusnetworks.com>

ip: link_vti.c: add json output support

Schema:
{
    "remote": {
        "type": "string",
        "attr": "IFLA_VTI_REMOTE"
    },
    "local": {
        "type": "string",
        "attr": "IFLA_VTI_LOCAL"
    },
    "link": {
        "type": "string",
        "attr": "IFLA_VTI_LINK",
        "mutually_exclusive": {
            "link_index": {
                "type": "uint",
            }
        }
    },
    "ikey": {
        "type": "string",
        "attr": "IFLA_VTI_IKEY"
    },
    "okey": {
        "type": "string",
        "attr": "IFLA_VTI_OKEY"
    }
}

$ ip tunnel add vti0 mode vti local 192.0.2.1 remote 198.51.100.3
$ ip link show
10: ip_vti0@NONE: <NOARP> mtu 1428 qdisc noop state DOWN mode DEFAULT group
default
    link/ipip 0.0.0.0 brd 0.0.0.0
11: vti0@NONE: <POINTOPOINT,NOARP> mtu 1428 qdisc noop state DOWN mode
DEFAULT group default
    link/ipip 192.0.2.1 peer 198.51.100.3
$ ./ip -details -json link show
[{
        "ifindex": 10,
        "ifname": "ip_vti0",
        "link": null,
        "flags": ["NOARP"],
        "mtu": 1428,
        "qdisc": "noop",
        "operstate": "DOWN",
        "linkmode": "DEFAULT",
        "group": "default",
        "link_type": "ipip",
        "address": "0.0.0.0",
        "broadcast": "0.0.0.0",
        "promiscuity": 0,
        "linkinfo": {
            "info_kind": "vti",
            "info_data": {
                "remote": "any",
                "local": "any",
                "ikey": "0.0.0.0",
                "okey": "0.0.0.0"
            }
        },
        "inet6_addr_gen_mode": "eui64",
        "num_tx_queues": 1,
        "num_rx_queues": 1,
        "gso_max_size": 65536,
        "gso_max_segs": 65535
    },{
        "ifindex": 11,
        "ifname": "vti0",
        "link": null,
        "flags": ["POINTOPOINT","NOARP"],
        "mtu": 1428,
        "qdisc": "noop",
        "operstate": "DOWN",
        "linkmode": "DEFAULT",
        "group": "default",
        "link_type": "ipip",
        "address": "192.0.2.1",
        "link_pointtopoint": true,
        "broadcast": "198.51.100.3",
        "promiscuity": 0,
        "linkinfo": {
            "info_kind": "vti",
            "info_data": {
                "remote": "198.51.100.3",
                "local": "192.0.2.1",
                "ikey": "0.0.0.0",
                "okey": "0.0.0.0"
            }
        },
        "inet6_addr_gen_mode": "eui64",
        "num_tx_queues": 1,
        "num_rx_queues": 1,
        "gso_max_size": 65536,
        "gso_max_segs": 65535
    }
]

Signed-off-by: Julien Fortin <julien@cumulusnetworks.com>

ip: link_iptnl.c: add json output support

Schema
{
    "remote": {
        "type": "string",
        "attr": "IFLA_IPTUN_REMOTE"
    },
    "local": {
        "type": "string",
        "attr": "IFLA_IPTUN_LOCAL"
    },
    "link": {
        "type": "string",
        "attr": "IFLA_IPTUN_LINK",
        "mutually_exclusive": {
            "link_index": {
                "type": "uint",
            }
        }
    },
    "ttl": {
        "type": "int",
        "attr": "IFLA_IPTUN_TTL"
    },
    "tos": {
        "type": "string",
        "attr": "IFLA_IPTUN_TOS"
    },
    "pmtudisc": {
        "type": "bool",
        "attr": "IFLA_IPTUN_PMTUDISC"
    },
    "isatap": {
        "type": "bool",
        "attr": "SIT_ISATAP & IFLA_IPTUN_FLAGS"
    },
    "6rd": {
        "type": "dict",
        "attr": "IFLA_IPTUN_6RD_PREFIXLEN",
        "dict": {
            "prefix": {
                "type": "string"
            },
            "prefixlen": {
                "type": "uint",
                "attr": "IFLA_IPTUN_6RD_PREFIXLEN"
            },
            "relay_prefix": {
                "type": "string"
            },
            "relay_prefixlen": {
                "type": "uint",
                "attr": "IFLA_IPTUN_6RD_PREFIXLEN"
            }
        }
    },
    "encap": {
        "type": "dict",
        "attr": "IFLA_IPTUN_ENCAP_TYPE",
        "dict": {
            "type": {
                "type": "string",
                "attr": "IFLA_IPTUN_ENCAP_TYPE"
            },
            "sport": {
                "type": "uint",
                "attr": "IFLA_IPTUN_ENCAP_SPORT"
            },
            "dport": {
                "type": "uint",
                "attr": "IFLA_IPTUN_ENCAP_DPORT"
            },
            "csum": {
                "type": "bool",
                "attr": "TUNNEL_ENCAP_FLAG_CSUM"
            },
            "csum6": {
                "type": "bool",
                "attr": "TUNNEL_ENCAP_FLAG_CSUM6"
            },
            "remcsum": {
                "type": "bool",
                "attr": "TUNNEL_ENCAP_FLAG_REMCSUM"
            }
        }
    }
}

$ ip tunnel add tun0 mode ipip local 192.0.2.1 remote 198.51.100.3
$ ip link show
10: tunl0@NONE: <NOARP> mtu 1480 qdisc noop state DOWN mode DEFAULT group
default
    link/ipip 0.0.0.0 brd 0.0.0.0
11: tun0@NONE: <POINTOPOINT,NOARP> mtu 1480 qdisc noop state DOWN mode
DEFAULT group default
    link/ipip 192.0.2.1 peer 198.51.100.3
$ ip -details -json link show
[{
        "ifindex": 10,
        "ifname": "tunl0",
        "link": null,
        "flags": ["NOARP"],
        "mtu": 1480,
        "qdisc": "noop",
        "operstate": "DOWN",
        "linkmode": "DEFAULT",
        "group": "default",
        "link_type": "ipip",
        "address": "0.0.0.0",
        "broadcast": "0.0.0.0",
        "promiscuity": 0,
        "linkinfo": {
            "info_kind": "ipip",
            "info_data": {
                "remote": "any",
                "local": "any",
                "ttl": 0,
                "pmtudisc": false
            }
        },
        "num_tx_queues": 1,
        "num_rx_queues": 1,
        "gso_max_size": 65536,
        "gso_max_segs": 65535
    },{
        "ifindex": 11,
        "ifname": "tun0",
        "link": null,
        "flags": ["POINTOPOINT","NOARP"],
        "mtu": 1480,
        "qdisc": "noop",
        "operstate": "DOWN",
        "linkmode": "DEFAULT",
        "group": "default",
        "link_type": "ipip",
        "address": "192.0.2.1",
        "link_pointtopoint": true,
        "broadcast": "198.51.100.3",
        "promiscuity": 0,
        "linkinfo": {
            "info_kind": "ipip",
            "info_data": {
                "remote": "198.51.100.3",
                "local": "192.0.2.1",
                "ttl": 0,
                "pmtudisc": true
            }
        },
        "num_tx_queues": 1,
        "num_rx_queues": 1,
        "gso_max_size": 65536,
        "gso_max_segs": 65535
    }
]

Signed-off-by: Julien Fortin <julien@cumulusnetworks.com>

ip: link_ip6tnl.c: add json output support

Schema
{
    "proto": {
        "type": "string",
        "attr": "IFLA_IPTUN_PROTO"
    },
    "remote": {
        "type": "string",
        "attr": "IFLA_IPTUN_REMOTE"
    },
    "local": {
        "type": "string",
        "attr": "IFLA_IPTUN_LOCAL"
    },
    "link": {
        "type": "string",
        "attr": "IFLA_IPTUN_LINK",
        "mutually_exclusive": {
            "link_index": {
                "type": "uint",
            }
        }
    },
    "ip6_tnl_f_ign_encap_limit": {
        "type": "bool",
        "attr": "IP6_TNL_F_IGN_ENCAP_LIMIT"
    },
    "encap_limit": {
        "type": "uint",
        "attr": "IFLA_IPTUN_ENCAP_LIMIT"
    },
    "ttl": {
        "type": "uint",
        "attr": "IFLA_IPTUN_TTL"
    },
    "ip6_tnl_f_use_orig_tclass": {
        "type": "",
        "attr": "IP6_TNL_F_USE_ORIG_TCLASS"
    },
    "flowinfo_tclass": {
        "type": "string",
        "attr": "IP6_FLOWINFO_TCLASS"
    },
    "ip6_tnl_f_use_orig_flowlabel": {
        "type": "bool",
        "attr": "IP6_TNL_F_USE_ORIG_FLOWLABEL"
    },
    "flowlabel": {
        "type": "string",
        "attr": "IP6_FLOWINFO_FLOWLABEL"
    },
    "flowinfo": {
        "type": "string"
    },
    "ip6_tnl_f_rcv_dscp_copy": {
        "type": "bool",
        "attr": "IP6_TNL_F_RCV_DSCP_COPY"
    },
    "ip6_tnl_f_mip6_dev": {
        "type": "bool",
        "attr": "IP6_TNL_F_MIP6_DEV"
    },
    "ip6_tnl_f_use_orig_fwmark": {
        "type": "bool",
        "attr": "IP6_TNL_F_USE_ORIG_FWMARK"
    },
    "encap": {
        "type": "dict",
        "attr": "IFLA_IPTUN_ENCAP_TYPE",
        "dict": {
            "type": {
                "type": "string",
                "attr": "IFLA_IPTUN_ENCAP_TYPE"
            },
            "sport": {
                "type": "uint",
                "attr": "IFLA_IPTUN_ENCAP_SPORT"
            },
            "dport": {
                "type": "uint",
                "attr": "IFLA_IPTUN_ENCAP_DPORT"
            },
            "csum": {
                "type": "bool",
                "attr": "TUNNEL_ENCAP_FLAG_CSUM"
            },
            "csum6": {
                "type": "bool",
                "attr": "TUNNEL_ENCAP_FLAG_CSUM6"
            },
            "remcsum": {
                "type": "bool",
                "attr": "TUNNEL_ENCAP_FLAG_REMCSUM"
            }
        }
    }
}

$ ip link show
$ ip -6 tunnel add name tun6 mode ip6gre local 2001:db8:1::1/64 remote
2001:0db8:85a3:0000:0000:8a2e:0370:7334
$ ip link show
10: ip6tnl0@NONE: <NOARP> mtu 1452 qdisc noop state DOWN mode DEFAULT group
default
    link/tunnel6 :: brd ::
11: ip6gre0@NONE: <NOARP> mtu 1448 qdisc noop state DOWN mode DEFAULT group
default
    link/gre6 00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00 brd
00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00
12: tun6@NONE: <POINTOPOINT,NOARP> mtu 1448 qdisc noop state DOWN mode
DEFAULT group default
    link/gre6 20:01:0d:b8:00:01:00:00:00:00:00:00:00:00:00:01 peer
20:01:0d:b8:85:a3:00:00:00:00:8a:2e:03:70:73:34
➜  ~ ./ip -details -json link show
[{
        "ifindex": 10,
        "ifname": "ip6tnl0",
        "link": null,
        "flags": ["NOARP"],
        "mtu": 1452,
        "qdisc": "noop",
        "operstate": "DOWN",
        "linkmode": "DEFAULT",
        "group": "default",
        "link_type": "tunnel6",
        "address": "::",
        "broadcast": "::",
        "promiscuity": 0,
        "linkinfo": {
            "info_kind": "ip6tnl",
            "info_data": {
                "proto": "ip6ip6",
                "remote": "::",
                "local": "::",
                "encap_limit": 0,
                "ttl": 0,
                "flowinfo_tclass": "0x00",
                "flowlabel": "0x00000",
                "flowinfo": "0x00000000"
            }
        },
        "inet6_addr_gen_mode": "eui64",
        "num_tx_queues": 1,
        "num_rx_queues": 1,
        "gso_max_size": 65536,
        "gso_max_segs": 65535
    },{
        "ifindex": 11,
        "ifname": "ip6gre0",
        "link": null,
        "flags": ["NOARP"],
        "mtu": 1448,
        "qdisc": "noop",
        "operstate": "DOWN",
        "linkmode": "DEFAULT",
        "group": "default",
        "link_type": "gre6",
        "address": "00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00",
        "broadcast": "00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00",
        "promiscuity": 0,
        "linkinfo": {
            "info_kind": "ip6gre",
            "info_data": {
                "remote": "any",
                "local": "any",
                "ttl": 0,
                "encap_limit": 0,
                "flowlabel": "0x00000"
            }
        },
        "inet6_addr_gen_mode": "eui64",
        "num_tx_queues": 1,
        "num_rx_queues": 1,
        "gso_max_size": 65536,
        "gso_max_segs": 65535
    },{
        "ifindex": 12,
        "ifname": "tun6",
        "link": null,
        "flags": ["POINTOPOINT","NOARP"],
        "mtu": 1448,
        "qdisc": "noop",
        "operstate": "DOWN",
        "linkmode": "DEFAULT",
        "group": "default",
        "link_type": "gre6",
        "address": "20:01:0d:b8:00:01:00:00:00:00:00:00:00:00:00:01",
        "link_pointtopoint": true,
        "broadcast": "20:01:0d:b8:85:a3:00:00:00:00:8a:2e:03:70:73:34",
        "promiscuity": 0,
        "linkinfo": {
            "info_kind": "ip6gre",
            "info_data": {
                "remote": "2001:db8:85a3::8a2e:370:7334",
                "local": "2001:db8:1::1",
                "ttl": 64,
                "encap_limit": 4,
                "flowlabel": "0x00000"
            }
        },
        "inet6_addr_gen_mode": "eui64",
        "num_tx_queues": 1,
        "num_rx_queues": 1,
        "gso_max_size": 65536,
        "gso_max_segs": 65535
    }
]

Signed-off-by: Julien Fortin <julien@cumulusnetworks.com>

ip: link_gre6.c: add json output support

Schema
{
    "remote": {
        "type": "string",
        "attr": "IFLA_GRE_REMOTE"
    },
    "local": {
        "type": "string",
        "attr": "IFLA_GRE_LOCAL"
    },
    "link": {
        "type": "string",
        "attr": "IFLA_GRE_LINK",
        "mutually_exclusive": {
            "link_index": {
                "type": "uint",
            }
        }
    },
    "ttl": {
        "type": "int",
        "attr": "IFLA_GRE_TTL"
    },
    "ip6_tnl_f_ign_encap_limit": {
        "type": "bool",
        "attr": "IP6_TNL_F_IGN_ENCAP_LIMIT"
    },
    "encap_limit": {
        "type": "int",
        "attr": "IFLA_GRE_ENCAP_LIMIT"
    },
    "ip6_tnl_f_use_orig_flowlabel": {
        "type": "bool",
        "attr": "IP6_TNL_F_USE_ORIG_FLOWLABEL"
    },
    "flowlabel": {
        "type": "string",
        "attr": "IP6_FLOWINFO_FLOWLABEL"
    },
    "ip6_tnl_f_rcv_dscp_copy": {
        "type": "bool",
        "attr": "IP6_TNL_F_RCV_DSCP_COPY"
    },
    "ikey": {
        "type": "string",
        "attr": "IFLA_GRE_IKEY"
    },
    "okey": {
        "type": "string",
        "attr": "IFLA_GRE_OKEY"
    },
    "iseq": {
        "type": "bool",
        "attr": "IFLA_GRE_IFLAGS & GRE_SEQ"
    },
    "oseq": {
        "type": "bool",
        "attr": "IFLA_GRE_OFLAGS & GRE_SEQ"
    },
    "icsum": {
        "type": "bool",
        "attr": "IFLA_GRE_IFLAGS & GRE_CSUM"
    },
    "ocsum": {
        "type": "bool",
        "attr": "IFLA_GRE_OFLAGS & GRE_CSUM"
    },
    "encap": {
        "type": "dict",
        "attr": "IFLA_GRE_ENCAP_TYPE != TUNNEL_ENCAP_NONE",
        "dict": {
            "type": {
                "type": "string",
                "attr": "IFLA_GRE_ENCAP_TYPE"
            },
            "sport": {
                "type": "uint",
                "attr": "IFLA_GRE_ENCAP_SPORT"
            },
            "dport": {
                "type": "uint",
                "attr": "IFLA_GRE_ENCAP_DPORT"
            },
            "csum": {
                "type": "bool",
                "attr": "TUNNEL_ENCAP_FLAG_CSUM"
            },
            "csum6": {
                "type": "bool",
                "attr": "TUNNEL_ENCAP_FLAG_CSUM6"
            },
            "remcsum": {
                "type": "bool",
                "attr": "TUNNEL_ENCAP_FLAG_REMCSUM"
            }
        }
    }
}

$ ip link show
$ ip -6 tunnel add name tun6 mode ip6gre local 2001:db8:1::1/64 remote
2001:0db8:85a3:0000:0000:8a2e:0370:7334
$ ip link show
10: ip6tnl0@NONE: <NOARP> mtu 1452 qdisc noop state DOWN mode DEFAULT
group default
    link/tunnel6 :: brd ::
11: ip6gre0@NONE: <NOARP> mtu 1448 qdisc noop state DOWN mode DEFAULT
group default
    link/gre6 00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00 brd
00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00
12: tun6@NONE: <POINTOPOINT,NOARP> mtu 1448 qdisc noop state DOWN mode
DEFAULT group default
    link/gre6 20:01:0d:b8:00:01:00:00:00:00:00:00:00:00:00:01 peer
20:01:0d:b8:85:a3:00:00:00:00:8a:2e:03:70:73:34
➜  ~ ./ip -details -json link show
[{
        "ifindex": 10,
        "ifname": "ip6tnl0",
        "link": null,
        "flags": ["NOARP"],
        "mtu": 1452,
        "qdisc": "noop",
        "operstate": "DOWN",
        "linkmode": "DEFAULT",
        "group": "default",
        "link_type": "tunnel6",
        "address": "::",
        "broadcast": "::",
        "promiscuity": 0,
        "linkinfo": {
            "info_kind": "ip6tnl",
            "info_data": {
                "proto": "ip6ip6",
                "remote": "::",
                "local": "::",
                "encap_limit": 0,
                "ttl": 0,
                "flowinfo_tclass": "0x00",
                "flowlabel": "0x00000",
                "flowinfo": "0x00000000"
            }
        },
        "inet6_addr_gen_mode": "eui64",
        "num_tx_queues": 1,
        "num_rx_queues": 1,
        "gso_max_size": 65536,
        "gso_max_segs": 65535
    },{
        "ifindex": 11,
        "ifname": "ip6gre0",
        "link": null,
        "flags": ["NOARP"],
        "mtu": 1448,
        "qdisc": "noop",
        "operstate": "DOWN",
        "linkmode": "DEFAULT",
        "group": "default",
        "link_type": "gre6",
        "address": "00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00",
        "broadcast": "00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00",
        "promiscuity": 0,
        "linkinfo": {
            "info_kind": "ip6gre",
            "info_data": {
                "remote": "any",
                "local": "any",
                "ttl": 0,
                "encap_limit": 0,
                "flowlabel": "0x00000"
            }
        },
        "inet6_addr_gen_mode": "eui64",
        "num_tx_queues": 1,
        "num_rx_queues": 1,
        "gso_max_size": 65536,
        "gso_max_segs": 65535
    },{
        "ifindex": 12,
        "ifname": "tun6",
        "link": null,
        "flags": ["POINTOPOINT","NOARP"],
        "mtu": 1448,
        "qdisc": "noop",
        "operstate": "DOWN",
        "linkmode": "DEFAULT",
        "group": "default",
        "link_type": "gre6",
        "address": "20:01:0d:b8:00:01:00:00:00:00:00:00:00:00:00:01",
        "link_pointtopoint": true,
        "broadcast": "20:01:0d:b8:85:a3:00:00:00:00:8a:2e:03:70:73:34",
        "promiscuity": 0,
        "linkinfo": {
            "info_kind": "ip6gre",
            "info_data": {
                "remote": "2001:db8:85a3::8a2e:370:7334",
                "local": "2001:db8:1::1",
                "ttl": 64,
                "encap_limit": 4,
                "flowlabel": "0x00000"
            }
        },
        "inet6_addr_gen_mode": "eui64",
        "num_tx_queues": 1,
        "num_rx_queues": 1,
        "gso_max_size": 65536,
        "gso_max_segs": 65535
    }
]

Signed-off-by: Julien Fortin <julien@cumulusnetworks.com>

ip: link_gre.c: add json output support

Schema
{
    "external": {
        "type": "bool",
        "comment": "!tb[IFLA_GRE_COLLECT_METADATA]"
    },
    "remote": {
        "type": "string",
        "attr": "IFLA_GRE_REMOTE"
    },
    "local": {
        "type": "string",
        "attr": "IFLA_GRE_LOCAL"
    },
    "link": {
        "type": "string",
        "attr": "IFLA_GRE_LINK",
        "mutually_exclusive": {
            "link_index": {
                "type": "uint",
            }
        }
    },
    "ttl": {
        "type": "int",
        "attr": "IFLA_GRE_TTL"
    },
    "tos": {
        "type": "string",
        "attr": "IFLA_GRE_TOS"
    },
    "pmtudisc": {
        "type": "bool",
        "attr": "IFLA_GRE_PMTUDISC"
    },
    "ikey": {
        "type": "string",
        "attr": "IFLA_GRE_IKEY"
    },
    "okey": {
        "type": "string",
        "attr": "IFLA_GRE_OKEY"
    },
    "iseq": {
        "type": "bool",
        "attr": "IFLA_GRE_IFLAGS & GRE_SEQ"
    },
    "oseq": {
        "type": "bool",
        "attr": "IFLA_GRE_OFLAGS & GRE_SEQ"
    },
    "icsum": {
        "type": "bool",
        "attr": "IFLA_GRE_IFLAGS & GRE_CSUM"
    },
    "ocsum": {
        "type": "bool",
        "attr": "IFLA_GRE_OFLAGS & GRE_CSUM"
    },
    "ignore_df": {
        "type": "bool",
        "attr": "IFLA_GRE_IGNORE_DF"
    },
    "encap": {
        "type": "dict",
        "attr": "IFLA_GRE_ENCAP_TYPE != TUNNEL_ENCAP_NONE",
        "dict": {
            "type": {
                "type": "string",
                "attr": "IFLA_GRE_ENCAP_TYPE"
            },
            "sport": {
                "type": "uint",
                "attr": "IFLA_GRE_ENCAP_SPORT"
            },
            "dport": {
                "type": "uint",
                "attr": "IFLA_GRE_ENCAP_DPORT"
            },
            "csum": {
                "type": "bool",
                "attr": "TUNNEL_ENCAP_FLAG_CSUM"
            },
            "csum6": {
                "type": "bool",
                "attr": "TUNNEL_ENCAP_FLAG_CSUM6"
            },
            "remcsum": {
                "type": "bool",
                "attr": "TUNNEL_ENCAP_FLAG_REMCSUM"
            }
        }
    }
}

$ ip link show
$ ip tunnel add tun42 mode gre local 192.0.2.42 remote 203.0.113.42 key 42
$ ip link show
10: gre0@NONE: <NOARP> mtu 1476 qdisc noop state DOWN mode DEFAULT group
default
    link/gre 0.0.0.0 brd 0.0.0.0
11: gretap0@NONE: <BROADCAST,MULTICAST> mtu 1462 qdisc noop state DOWN
mode DEFAULT group default qlen 1000
    link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff
12: tun42@NONE: <POINTOPOINT,NOARP> mtu 1472 qdisc noop state DOWN mode
DEFAULT group default
    link/gre 192.0.2.42 peer 203.0.113.42
$ ip -details -json link show
[{
        "ifindex": 10,
        "ifname": "gre0",
        "link": null,
        "flags": ["NOARP"],
        "mtu": 1476,
        "qdisc": "noop",
        "operstate": "DOWN",
        "linkmode": "DEFAULT",
        "group": "default",
        "link_type": "gre",
        "address": "0.0.0.0",
        "broadcast": "0.0.0.0",
        "promiscuity": 0,
        "linkinfo": {
            "info_kind": "gre",
            "info_data": {
                "remote": "any",
                "local": "any",
                "ttl": 0,
                "pmtudisc": false
            }
        },
        "inet6_addr_gen_mode": "eui64",
        "num_tx_queues": 1,
        "num_rx_queues": 1,
        "gso_max_size": 65536,
        "gso_max_segs": 65535
    },{
        "ifindex": 11,
        "ifname": "gretap0",
        "link": null,
        "flags": ["BROADCAST","MULTICAST"],
        "mtu": 1462,
        "qdisc": "noop",
        "operstate": "DOWN",
        "linkmode": "DEFAULT",
        "group": "default",
        "txqlen": 1000,
        "link_type": "ether",
        "address": "00:00:00:00:00:00",
        "broadcast": "ff:ff:ff:ff:ff:ff",
        "promiscuity": 0,
        "linkinfo": {
            "info_kind": "gretap",
            "info_data": {
                "remote": "any",
                "local": "any",
                "ttl": 0,
                "pmtudisc": false
            }
        },
        "inet6_addr_gen_mode": "eui64",
        "num_tx_queues": 1,
        "num_rx_queues": 1,
        "gso_max_size": 65536,
        "gso_max_segs": 65535
    },{
        "ifindex": 12,
        "ifname": "tun42",
        "link": null,
        "flags": ["POINTOPOINT","NOARP"],
        "mtu": 1472,
        "qdisc": "noop",
        "operstate": "DOWN",
        "linkmode": "DEFAULT",
        "group": "default",
        "link_type": "gre",
        "address": "192.0.2.42",
        "link_pointtopoint": true,
        "broadcast": "203.0.113.42",
        "promiscuity": 0,
        "linkinfo": {
            "info_kind": "gre",
            "info_data": {
                "remote": "203.0.113.42",
                "local": "192.0.2.42",
                "ttl": 0,
                "pmtudisc": true,
                "ikey": "0.0.0.42",
                "okey": "0.0.0.42"
            }
        },
        "inet6_addr_gen_mode": "eui64",
        "num_tx_queues": 1,
        "num_rx_queues": 1,
        "gso_max_size": 65536,
        "gso_max_segs": 65535
    }
]

Signed-off-by: Julien Fortin <julien@cumulusnetworks.com>

ip: ipmacsec.c: add json output support

Schema
{
    "sci": {
        "type": "string",
        "attr": "IFLA_MACSEC_SCI"
    },
    "protect": {
        "type": "string",
        "attr": "IFLA_MACSEC_PROTECT"
    },
    "cipher_suite": {
        "type": "string",
        "attr": "IFLA_MACSEC_CIPHER_SUITE"
    },
    "icv_len": {
        "type": "uint",
        "attr": "IFLA_MACSEC_ICV_LEN"
    },
    "encoding_sa": {
        "type": "uint",
        "attr": "IFLA_MACSEC_ENCODING_SA"
    },
    "validation": {
        "type": "string",
        "attr": "IFLA_MACSEC_VALIDATION"
    },
    "encrypt": {
        "type": "string",
        "attr": "IFLA_MACSEC_ENCRYPT"
    },
    "inc_sci": {
        "type": "string",
        "attr": "IFLA_MACSEC_INC_SCI"
    },
    "es": {
        "type": "string",
        "attr": "IFLA_MACSEC_ES"
    },
    "scb": {
        "type": "string",
        "attr": "IFLA_MACSEC_SCB"
    },
    "replay_protect": {
        "type": "string",
        "attr": "IFLA_MACSEC_REPLAY_PROTECT"
    },
    "window": {
        "type": "int",
        "attr": ""
    }
}

Signed-off-by: Julien Fortin <julien@cumulusnetworks.com>

ip: iplink_xdp.c: add json output support

Schema
{
    "attached": {
        "type": "uint",
        "attr": "IFLA_XDP_ATTACHED"
    },
    "prog_id": {
        "type": "uint",
        "attr": "IFLA_XDP_PROG_ID"
    }
}

Signed-off-by: Julien Fortin <julien@cumulusnetworks.com>

ip: iplink_vxlan.c: add json output support

Schema:
{
    "id": {
        "type": "uint",
        "attr": "IFLA_VXLAN_ID"
    },
    "group": {
        "type": "string",
        "attr": "IFLA_VXLAN_GROUP"
    },
    "remote": {
        "type": "string",
        "attr": "IFLA_VXLAN_GROUP"
    },
    "group6": {
        "type": "string",
        "attr": "IFLA_VXLAN_GROUP6"
    },
    "remote6": {
        "type": "string",
        "attr": "IFLA_VXLAN_GROUP6"
    },
    "local": {
        "type": "string",
        "attr": "IFLA_VXLAN_LOCAL"
    },
    "local6": {
        "type": "string",
        "attr": "IFLA_VXLAN_LOCAL6"
    },
    "link": {
        "type": "string",
        "attr": "IFLA_VXLAN_LINK",
        "mutually_exclusive": {
            "link_index": {
                "type": "uint",
                "comment": "if not ifname for ifindex"
            }
        }
    },
    "port_range": {
        "type": "dict",
        "attr": "IFLA_VXLAN_PORT_RANGE",
        "dict": {
            "low": {
                "type": "uint"
            },
            "high": {
                "type": "uint"
            }
        }
    },
    "port": {
        "type": "uint",
        "attr": "IFLA_VXLAN_PORT"
    },
    "learning": {
        "type": "bool",
        "attr": "IFLA_VXLAN_LEARNING"
    },
    "proxy": {
        "type": "bool",
        "attr": "IFLA_VXLAN_PROXY"
    },
    "rsc": {
        "type": "bool",
        "attr": "IFLA_VXLAN_RSC"
    },
    "l2miss": {
        "type": "bool",
        "attr": "IFLA_VXLAN_L2MISS"
    },
    "l3miss": {
        "type": "bool",
        "attr": "IFLA_VXLAN_L3MISS"
    },
    "tos": {
        "type": "string",
        "attr": "IFLA_VXLAN_TOS"
    },
    "ttl": {
        "type": "int",
        "attr": "IFLA_VXLAN_TTL"
    },
    "label": {
        "type": "string",
        "attr": "IFLA_VXLAN_LABEL"
    },
    "ageing": {
        "type": "uint",
        "attr": "IFLA_VXLAN_AGEING"
    },
    "limit": {
        "type": "uint",
        "attr": "IFLA_VXLAN_LIMIT"
    },
    "udp_csum": {
        "type": "bool",
        "attr": "IFLA_VXLAN_UDP_CSUM"
    },
    "udp_zero_csum6_tx": {
        "type": "bool",
        "attr": "IFLA_VXLAN_UDP_ZERO_CSUM6_TX"
    },
    "udp_zero_csum6_rx": {
        "type": "bool",
        "attr": "IFLA_VXLAN_UDP_ZERO_CSUM6_RX"
    },
    "remcsum_tx": {
        "type": "bool",
        "attr": "IFLA_VXLAN_REMCSUM_TX"
    },
    "remcsum_rx": {
        "type": "bool",
        "attr": "IFLA_VXLAN_REMCSUM_RX"
    },
    "collect_metadata": {
        "type": "bool",
        "attr": "IFLA_VXLAN_COLLECT_METADATA"
    },
    "gbp": {
        "type": "bool",
        "attr": "IFLA_VXLAN_GBP"
    },
    "gpe": {
        "type": "bool",
        "attr": "IFLA_VXLAN_GPE"
    }
}

$ ip link add name vxlan42 type vxlan id 42 dev eth0 remote 203.0.113.6
local 192.0.2.1 dstport 4789
$ ip link add name vxlan43 type vxlan id 43 dev eth0 group 239.0.0.1
dstport 4789
$ ip -details -json link show
[{
        "ifindex": 17,
        "ifname": "vxlan42",
        "flags": ["BROADCAST","MULTICAST"],
        "mtu": 1450,
        "qdisc": "noop",
        "operstate": "DOWN",
        "linkmode": "DEFAULT",
        "group": "default",
        "link_type": "ether",
        "address": "b2:92:0e:1a:c6:42",
        "broadcast": "ff:ff:ff:ff:ff:ff",
        "promiscuity": 0,
        "linkinfo": {
            "info_kind": "vxlan",
            "info_data": {
                "id": 42,
                "remote": "203.0.113.6",
                "local": "192.0.2.1",
                "link": "eth0",
                "port_range": {
                    "low": 0,
                    "high": 0
                },
                "port": 4789,
                "learning": true,
                "ttl": 0,
                "ageing": 300,
                "udp_csum": false,
                "udp_zero_csum6_tx": false,
                "udp_zero_csum6_rx": false
            }
        },
        "inet6_addr_gen_mode": "eui64",
        "num_tx_queues": 1,
        "num_rx_queues": 1,
        "gso_max_size": 65536,
        "gso_max_segs": 65535
    },{
        "ifindex": 18,
        "ifname": "vxlan43",
        "flags": ["BROADCAST","MULTICAST"],
        "mtu": 1450,
        "qdisc": "noop",
        "operstate": "DOWN",
        "linkmode": "DEFAULT",
        "group": "default",
        "link_type": "ether",
        "address": "c6:51:4d:7f:f9:2f",
        "broadcast": "ff:ff:ff:ff:ff:ff",
        "promiscuity": 0,
        "linkinfo": {
            "info_kind": "vxlan",
            "info_data": {
                "id": 43,
                "group": "239.0.0.1",
                "link": "eth0",
                "port_range": {
                    "low": 0,
                    "high": 0
                },
                "port": 4789,
                "learning": true,
                "ttl": 0,
                "ageing": 300,
                "udp_csum": false,
                "udp_zero_csum6_tx": false,
                "udp_zero_csum6_rx": false
            }
        },
        "inet6_addr_gen_mode": "eui64",
        "num_tx_queues": 1,
        "num_rx_queues": 1,
        "gso_max_size": 65536,
        "gso_max_segs": 65535
    }
]

Signed-off-by: Julien Fortin <julien@cumulusnetworks.com>

ip: iplink_vrf.c: add json output support

Schema:
{
    "table": {
        "type": "uint",
        "attr": "IFLA_VRF_TABLE"
    }
}

Signed-off-by: Julien Fortin <julien@cumulusnetworks.com>

ip: iplink_ipvlan.c: add json output support

Schema:
{
    "mode": {
        "type": "string",
        "attr": "IFLA_IPVLAN_MODE"
    }
}

Signed-off-by: Julien Fortin <julien@cumulusnetworks.com>

ip: iplink_ipoib.c: add json output support

Schema:
{
    "key": {
        "type": "string",
        "attr": "IFLA_IPOIB_PKEY"
    },
    "mode": {
        "type": "string",
        "attr": "IFLA_IPOIB_PKEY"
    },
    "umcast": {
        "type": "string",
        "attr": "IFLA_IPOIB_UMCAST"
    }
}

Signed-off-by: Julien Fortin <julien@cumulusnetworks.com>

ip: iplink_geneve.c: add json output support

Schema:
{
    "id": {
        "type": "uint",
        "attr": "IFLA_GENEVE_ID"
    },
    "remote": {
        "type": "string",
        "attr": "IFLA_GENEVE_REMOTE"
    },
    "remote6": {
        "type": "string",
        "attr": "IFLA_GENEVE_REMOTE6"
    },
    "ttl": {
        "type": "int",
        "attr": "IFLA_GENEVE_TTL"
    },
    "tos": {
        "type": "string",
        "attr": "IFLA_GENEVE_TOS"
    },
    "label": {
        "type": "string",
        "attr": "IFLA_GENEVE_LABEL"
    },
    "port": {
        "type": "uint",
        "attr": "IFLA_GENEVE_PORT"
    },
    "collect_metadata": {
        "type": "bool",
        "attr": "IFLA_GENEVE_COLLECT_METADATA"
    },
    "udp_csum": {
        "type": "bool",
        "attr": "IFLA_GENEVE_UDP_CSUM"
    },
    "udp_zero_csum6_tx": {
        "type": "bool",
        "attr": "IFLA_GENEVE_UDP_ZERO_CSUM6_TX"
    },
    "udp_zero_csum6_rx": {
        "type": "bool",
        "attr": "IFLA_GENEVE_UDP_ZERO_CSUM6_RX"
    }
}

Signed-off-by: Julien Fortin <julien@cumulusnetworks.com>

ip: iplink_can.c: add json output support

Schema: IFLA_INFO_DATA
{
    "ctrlmode": {
        "type": "array",
        "attr": "IFLA_CAN_CTRLMODE",
        "array": [
            {
                "type": "string"
            }
        ]
    },
    "state": {
        "type": "string",
        "attr": "IFLA_CAN_STATE"
    },
    "berr_counter": {
        "type": "dict",
        "attr": "IFLA_CAN_BERR_COUNTER",
        "dict": {
            "tx": {
                "type": "int"
            },
            "rx": {
                "type": "int"
            }
        }
    },
    "restart_ms": {
        "type": "int",
        "attr": "IFLA_CAN_RESTART_MS"
    },
    "bittiming": {
        "type": "dict",
        "attr": "IFLA_CAN_BITTIMING",
        "dict": {
            "bitrate": {
                "type": "int"
            },
            "sample_point": {
                "type": "float"
            },
            "tq": {
                "type": "int"
            },
            "prop_seg": {
                "type": "int"
            },
            "phase_seg1": {
                "type": "int"
            },
            "phase_seg2": {
                "type": "int"
            },
            "sjw": {
                "type": "int"
            }
        }
    },
    "bittiming_const": {
        "type": "dict",
        "attr": "IFLA_CAN_BITTIMING_CONST",
        "dict": {
            "name": {
                "type": "string"
            },
            "tseg1": {
                "type": "dict",
                "dict": {
                    "min": {
                        "type": "int"
                    },
                    "max": {
                        "type": "int"
                    }
                }
            },
            "tseg2": {
                "type": "dict",
                "dict": {
                    "min": {
                        "type": "int"
                    },
                    "max": {
                        "type": "int"
                    }
                }
            },
            "sjw": {
                "type": "dict",
                "dict": {
                    "min": {
                        "type": "int"
                    },
                    "max": {
                        "type": "int"
                    }
                }
            },
            "brp": {
                "type": "dict",
                "dict": {
                    "min": {
                        "type": "int"
                    },
                    "max": {
                        "type": "int"
                    }
                }
            },
            "brp_inc": {
                "type": "int"
            }
        }
    },
    "bittiming_bitrate": {
        "type": "uint",
        "attr": "IFLA_CAN_BITTIMING"
    },
    "bitrate_const": {
        "type": "array",
        "attr": "IFLA_CAN_BITRATE_CONST",
        "array": [
            {
                "type": "uint"
            }
        ]
    },
    "data_bittiming": {
        "type": "dict",
        "attr": "IFLA_CAN_DATA_BITTIMING",
        "dict": {
            "bitrate": {
                "type": "int"
            },
            "sample_point": {
                "type": "float"
            },
            "tq": {
                "type": "int"
            },
            "prop_seg": {
                "type": "int"
            },
            "phase_seg1": {
                "type": "int"
            },
            "phase_seg2": {
                "type": "int"
            },
            "sjw": {
                "type": "int"
            }
        }
    },
    "data_bittiming_const": {
        "type": "dict",
        "attr": "IFLA_CAN_DATA_BITTIMING_CONST",
        "dict": {
            "name": {
                "type": "string"
            },
            "tseg1": {
                "type": "dict",
                "dict": {
                    "min": {
                        "type": "int"
                    },
                    "max": {
                        "type": "int"
                    }
                }
            },
            "tseg2": {
                "type": "dict",
                "dict": {
                    "min": {
                        "type": "int"
                    },
                    "max": {
                        "type": "int"
                    }
                }
            },
            "sjw": {
                "type": "dict",
                "dict": {
                    "min": {
                        "type": "int"
                    },
                    "max": {
                        "type": "int"
                    }
                }
            },
            "brp": {
                "type": "dict",
                "dict": {
                    "min": {
                        "type": "int"
                    },
                    "max": {
                        "type": "int"
                    }
                }
            },
            "brp_inc": {
                "type": "int"
            }
        }
    },
    "data_bittiming_bitrate": {
        "type": "uint",
        "attr": "IFLA_CAN_DATA_BITTIMING"
    },
    "data_bitrate_const": {
        "type": "array",
        "attr": "IFLA_CAN_DATA_BITRATE_CONST",
        "array": [
            {
                "type": "uint"
            }
        ]
    },
    "termination": {
        "type": "unsigned short",
        "attr": "IFLA_CAN_TERMINATION"
    },
    "termination_const": {
        "type": "array",
        "attr": "IFLA_CAN_TERMINATION_CONST",
        "array": [
            {
                "type": "unsigned short"
            }
        ]
    },
    "clock": {
        "type": "int",
        "attr": "IFLA_CAN_CLOCK"
    }
}

IFLA_INFO_XSTATS
{
    "restarts": {
        "type": "int"
    },
    "bus_error": {
        "type": "int"
    },
    "arbitration_lost": {
        "type": "int"
    },
    "error_warning": {
        "type": "int"
    },
    "error_passive": {
        "type": "int"
    },
    "bus_off": {
        "type": "int"
    }
}

Signed-off-by: Julien Fortin <julien@cumulusnetworks.com>

ip: iplink_bridge_slave.c: add json output support

Schema:
bridge_slave: IFLA_INFO_SLAVE_DATA
{
    "state": {
        "type": "string",
        "attr": "IFLA_BRPORT_STATE",
        "mutually_exclusive": {
            "state_index": {
                "type": "uint",
                "comment": "if (state > BR_STATE_BLOCKING)"
            }
        }
    },
    "priority": {
        "type": "int",
        "attr": "IFLA_BRPORT_PRIORITY"
    },
    "cost": {
        "type": "int",
        "attr": "IFLA_BRPORT_COST"
    },
    "mode": {
        "type": "bool",
        "attr": "IFLA_BRPORT_MODE"
    },
    "guard": {
        "type": "bool",
        "attr": "IFLA_BRPORT_GUARD"
    },
    "protect": {
        "type": "bool",
        "attr": "IFLA_BRPORT_PROTECT"
    },
    "fast_leave": {
        "type": "bool",
        "attr": "IFLA_BRPORT_FAST_LEAVE"
    },
    "learning": {
        "type": "bool",
        "attr": "IFLA_BRPORT_LEARNING"
    },
    "unicast_flood": {
        "type": "bool",
        "attr": "IFLA_BRPORT_UNICAST_FLOOD"
    },
    "id": {
        "type": "string",
        "attr": "IFLA_BRPORT_ID"
    },
    "no": {
        "type": "string",
        "attr": "IFLA_BRPORT_NO"
    },
    "designated_port": {
        "type": "uint",
        "attr": "IFLA_BRPORT_DESIGNATED_PORT"
    },
    "designated_cost": {
        "type": "uint",
        "attr": "IFLA_BRPORT_DESIGNATED_COST"
    },
    "bridge_id": {
        "type": "string",
        "attr": "IFLA_BRPORT_BRIDGE_ID"
    },
    "root_id": {
        "type": "string",
        "attr": "IFLA_BRPORT_ROOT_ID"
    },
    "hold_timer": {
        "type": "float",
        "attr": "IFLA_BRPORT_HOLD_TIMER"
    },
    "message_age_timer": {
        "type": "float",
        "attr": "IFLA_BRPORT_MESSAGE_AGE_TIMER"
    },
    "forward_delay_timer": {
        "type": "float",
        "attr": "IFLA_BRPORT_FORWARD_DELAY_TIMER"
    },
    "topology_change_ack": {
        "type": "uint",
        "attr": "IFLA_BRPORT_TOPOLOGY_CHANGE_ACK"
    },
    "config_pending": {
        "type": "uint",
        "attr": "IFLA_BRPORT_CONFIG_PENDING"
    },
    "proxyarp": {
        "type": "bool",
        "attr": "IFLA_BRPORT_PROXYARP"
    },
    "proxyarp_wifi": {
        "type": "bool",
        "attr": "IFLA_BRPORT_PROXYARP_WIFI"
    },
    "multicast_router": {
        "type": "uint",
        "attr": "IFLA_BRPORT_MULTICAST_ROUTER"
    },
    "mcast_flood": {
        "type": "bool",
        "attr": "IFLA_BRPORT_MCAST_FLOOD"
    }
}

$ ip link add dev br42 type bridge
$ ip link add dev bond42 type bond
$ ip link set dev bond42 master br42
$ ip link set dev bond42 up
$ ip link set dev br42 up
$ ip -details link show
$ ip -details link show
15: br42: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state
UP mode DEFAULT group default
    link/ether 22:8f:91:bb:9f:09 brd ff:ff:ff:ff:ff:ff promiscuity 0
    bridge forward_delay 1500 hello_time 200 max_age 2000 ageing_time
30000 stp_state 0 priority 32768 vlan_filtering 0 vlan_protocol 802.1Q
bridge_id 8000.22:8f:91:bb:9f:9 designated_root 8000.22:8f:91:bb:9f:9
root_port 0 root_path_cost 0 topology_change 0 topology_change_detected 0
hello_timer    0.00 tcn_timer    0.00 topology_change_timer    0.00
gc_timer  199.11 vlan_default_pvid 1 vlan_stats_enabled 0 group_fwd_mask 0
group_address 01:80:c2:00:00:00 mcast_snooping 1 mcast_router 1
mcast_query_use_ifaddr 0 mcast_querier 0 mcast_hash_elasticity 4096
mcast_hash_max 4096 mcast_last_member_count 2 mcast_startup_query_count 2
mcast_last_member_interval 100 mcast_membership_interval 26000
mcast_querier_interval 25500 mcast_query_interval 12500
mcast_query_response_interval 1000 mcast_startup_query_interval 3125
mcast_stats_enabled 0 mcast_igmp_version 2 mcast_mld_version 1
nf_call_iptables 0 nf_call_ip6tables 0 nf_call_arptables 0 addrgenmode
eui64
16: bond42: <BROADCAST,MULTICAST,MASTER,UP,LOWER_UP> mtu 1500 qdisc
noqueue master br42 state UNKNOWN mode DEFAULT group default
    link/ether 22:8f:91:bb:9f:09 brd ff:ff:ff:ff:ff:ff promiscuity 1
    bond mode 802.3ad miimon 100 updelay 0 downdelay 0 use_carrier 1
arp_interval 0 arp_validate none arp_all_targets any primary_reselect
always fail_over_mac none xmit_hash_policy layer3+4 resend_igmp 1
num_grat_arp 1 all_slaves_active 0 min_links 1 lp_interval 1
packets_per_slave 1 lacp_rate fast ad_select stable ad_actor_sys_prio
65535 ad_user_port_key 0 ad_actor_system 00:00:00:00:00:00
    bridge_slave state forwarding priority 8 cost 100 hairpin off guard
off root_block off fastleave off learning on flood on port_id 0x8001
port_no 0x1 designated_port 32769 designated_cost 0 designated_bridge
8000.22:8f:91:bb:9f:9 designated_root 8000.22:8f:91:bb:9f:9 hold_timer
0.00 message_age_timer    0.00 forward_delay_timer    0.00
topology_change_ack 0 config_pending 0 proxy_arp off proxy_arp_wifi off
mcast_router 1 mcast_fast_leave off mcast_flood on neigh_suppress off
addrgenmode eui64

$ ip -details -json link show
[{
        "ifindex": 15,
        "ifname": "br42",
        "flags": ["BROADCAST","MULTICAST","UP","LOWER_UP"],
        "mtu": 1500,
        "qdisc": "noqueue",
        "operstate": "UP",
        "linkmode": "DEFAULT",
        "group": "default",
        "link_type": "ether",
        "address": "22:8f:91:bb:9f:09",
        "broadcast": "ff:ff:ff:ff:ff:ff",
        "promiscuity": 0,
        "linkinfo": {
            "info_kind": "bridge",
            "info_data": {
                "forward_delay": 1500,
                "hello_time": 200,
                "max_age": 2000,
                "ageing_time": 30000,
                "stp_state": 0,
                "priority": 32768,
                "vlan_filtering": 0,
                "vlan_protocol": "802.1Q",
                "bridge_id": "8000.22:8f:91:bb:9f:9",
                "root_id": "8000.22:8f:91:bb:9f:9",
                "root_port": 0,
                "root_path_cost": 0,
                "topology_change": 0,
                "topology_change_detected": 0,
                "hello_timer": 0.00,
                "tcn_timer": 0.00,
                "topology_change_timer": 0.00,
                "gc_timer": 298.27,
                "vlan_default_pvid": 1,
                "vlan_stats_enabled": 0,
                "group_fwd_mask": "0",
                "group_addr": "01:80:c2:00:00:00",
                "mcast_snooping": 1,
                "mcast_router": 1,
                "mcast_query_use_ifaddr": 0,
                "mcast_querier": 0,
                "mcast_hash_elasticity": 4096,
                "mcast_hash_max": 4096,
                "mcast_last_member_cnt": 2,
                "mcast_startup_query_cnt": 2,
                "mcast_last_member_intvl": 100,
                "mcast_membership_intvl": 26000,
                "mcast_querier_intvl": 25500,
                "mcast_query_intvl": 12500,
                "mcast_query_response_intvl": 1000,
                "mcast_startup_query_intvl": 3125,
                "mcast_stats_enabled": 0,
                "mcast_igmp_version": 2,
                "mcast_mld_version": 1,
                "nf_call_iptables": 0,
                "nf_call_ip6tables": 0,
                "nf_call_arptables": 0
            }
        },
        "inet6_addr_gen_mode": "eui64",
        "num_tx_queues": 1,
        "num_rx_queues": 1,
        "gso_max_size": 65536,
        "gso_max_segs": 65535
    },{
        "ifindex": 16,
        "ifname": "bond42",
        "flags": ["BROADCAST","MULTICAST","MASTER","UP","LOWER_UP"],
        "mtu": 1500,
        "qdisc": "noqueue",
        "master": "br42",
        "operstate": "UNKNOWN",
        "linkmode": "DEFAULT",
        "group": "default",
        "link_type": "ether",
        "address": "22:8f:91:bb:9f:09",
        "broadcast": "ff:ff:ff:ff:ff:ff",
        "promiscuity": 1,
        "linkinfo": {
            "info_kind": "bond",
            "info_data": {
                "mode": "802.3ad",
                "miimon": 100,
                "updelay": 0,
                "downdelay": 0,
                "use_carrier": 1,
                "arp_interval": 0,
                "arp_validate": null,
                "arp_all_targets": "any",
                "primary_reselect": "always",
                "fail_over_mac": "none",
                "xmit_hash_policy": "layer3+4",
                "resend_igmp": 1,
                "num_peer_notif": 1,
                "all_slaves_active": 0,
                "min_links": 1,
                "lp_interval": 1,
                "packets_per_slave": 1,
                "ad_lacp_rate": "fast",
                "ad_select": "stable",
                "ad_actor_sys_prio": 65535,
                "ad_user_port_key": 0,
                "ad_actor_system": "00:00:00:00:00:00"
            },
            "info_slave_kind": "bridge",
            "info_slave_data": {
                "state": "forwarding",
                "priority": 8,
                "cost": 100,
                "hairpin": false,
                "guard": false,
                "root_block": false,
                "fastleave": false,
                "learning": true,
                "flood": true,
                "id": "0x8001",
                "no": "0x1",
                "designated_port": 32769,
                "designated_cost": 0,
                "bridge_id": "8000.22:8f:91:bb:9f:9",
                "root_id": "8000.22:8f:91:bb:9f:9",
                "hold_timer": 0.00,
                "message_age_timer": 0.00,
                "forward_delay_timer": 11.97,
                "topology_change_ack": 0,
                "config_pending": 0,
                "proxy_arp": false,
                "proxy_arp_wifi": false,
                "multicast_router": 1,
                "mcast_flood": true
            }
        },
        "inet6_addr_gen_mode": "eui64",
        "num_tx_queues": 16,
        "num_rx_queues": 16,
        "gso_max_size": 65536,
        "gso_max_segs": 65535
    }
]

Signed-off-by: Julien Fortin <julien@cumulusnetworks.com>