search for: nlh

...y that a message will have that "nlmsg_len" in the header, but this report assumes that such bytes are possible while parsing, and a parser using libmnl must correctly identify any incomplete messages. Looking at the source code ``` EXPORT_SYMBOL bool mnl_nlmsg_ok(const struct nlmsghdr *nlh, int len) { return len >= (int)sizeof(struct nlmsghdr) && nlh->nlmsg_len >= sizeof(struct nlmsghdr) && (int)nlh->nlmsg_len <= len; } ``` The last line casts "nlh->nlmsg_len" to "int", but that value can't be stored...

...skip: + idx++; + } + } + +out: + cb->args[1] = idx; + cb->args[2] = mdb->seq; + nla_nest_end(skb, nest); + return err; +} + +static int br_mdb_dump(struct sk_buff *skb, struct netlink_callback *cb) +{ + struct net_device *dev; + struct net *net = sock_net(skb->sk); + struct nlmsghdr *nlh; + int idx = 0, s_idx; + + s_idx = cb->args[0]; + + rcu_read_lock(); + + for_each_netdev_rcu(net, dev) { + if (dev->priv_flags & IFF_EBRIDGE) { + struct br_port_msg *bpm; + + if (idx < s_idx) + goto skip; + + nlh = nlmsg_put(skb, NETLINK_CB(cb->skb).portid, + cb->nl...

...entry=0x7fffffffe440, msgs=msgs at entry=0x7fffffffe430) at src/main.c:227 #10 0x0000000000405fca in main (argc=3, argv=<optimized out>) at src/main.c:340 # Loading a larger ruleset containing two ~1700-element sets: Program received signal SIGSEGV, Segmentation fault. mnl_attr_nest_start (nlh=nlh at entry=0x7fffffffd150, type=type at entry=1) at attr.c:535 535 start->nla_type = NLA_F_NESTED | type; (gdb) bt #0 mnl_attr_nest_start (nlh=nlh at entry=0x7fffffffd150, type=type at entry=1) at attr.c:535 #1 0x00007ffff7712f6d in nft_set_elem_nlmsg_build_payload (nlh=nlh at en...

...nfo); + if (error != 0) { + strcpy(buffer, "getaddrinfo failed\n"); + error = 1; + goto get_domain_done; + } + strcpy(buffer, info->ai_canonname); +get_domain_done: + freeaddrinfo(info); + return error; +} + +static int +netlink_send(int fd, struct cn_msg *msg) +{ + struct nlmsghdr *nlh; + unsigned int size; + struct msghdr message; + char buffer[64]; + struct iovec iov[2]; + + size = NLMSG_SPACE(sizeof(struct cn_msg) + msg->len); + + nlh = (struct nlmsghdr *)buffer; + nlh->nlmsg_seq = 0; + nlh->nlmsg_pid = getpid(); + nlh->nlmsg_type = NLMSG_DONE; + nlh->nlmsg_len...

...nfo); + if (error != 0) { + strcpy(buffer, "getaddrinfo failed\n"); + error = 1; + goto get_domain_done; + } + strcpy(buffer, info->ai_canonname); +get_domain_done: + freeaddrinfo(info); + return error; +} + +static int +netlink_send(int fd, struct cn_msg *msg) +{ + struct nlmsghdr *nlh; + unsigned int size; + struct msghdr message; + char buffer[64]; + struct iovec iov[2]; + + size = NLMSG_SPACE(sizeof(struct cn_msg) + msg->len); + + nlh = (struct nlmsghdr *)buffer; + nlh->nlmsg_seq = 0; + nlh->nlmsg_pid = getpid(); + nlh->nlmsg_type = NLMSG_DONE; + nlh->nlmsg_len...

...; + if (error !=3D 0) { + strcpy(buffer, "getaddrinfo failed\n"); + error =3D 1; + goto get_domain_done; + } + strcpy(buffer, info->ai_canonname); +get_domain_done: + freeaddrinfo(info); + return error; +} + +static int +netlink_send(int fd, struct cn_msg *msg) +{ + struct nlmsghdr *nlh; + unsigned int size; + struct msghdr message; + char buffer[64]; + struct iovec iov[2]; + + size =3D NLMSG_SPACE(sizeof(struct cn_msg) + msg->len); + + nlh =3D (struct nlmsghdr *)buffer; + nlh->nlmsg_seq =3D 0; + nlh->nlmsg_pid =3D getpid(); + nlh->nlmsg_type =3D NLMSG_DONE; + nlh->...

...; + if (error !=3D 0) { + strcpy(buffer, "getaddrinfo failed\n"); + error =3D 1; + goto get_domain_done; + } + strcpy(buffer, info->ai_canonname); +get_domain_done: + freeaddrinfo(info); + return error; +} + +static int +netlink_send(int fd, struct cn_msg *msg) +{ + struct nlmsghdr *nlh; + unsigned int size; + struct msghdr message; + char buffer[64]; + struct iovec iov[2]; + + size =3D NLMSG_SPACE(sizeof(struct cn_msg) + msg->len); + + nlh =3D (struct nlmsghdr *)buffer; + nlh->nlmsg_seq =3D 0; + nlh->nlmsg_pid =3D getpid(); + nlh->nlmsg_type =3D NLMSG_DONE; + nlh->...

...nfo); + if (error != 0) { + strcpy(buffer, "getaddrinfo failed\n"); + error = 1; + goto get_domain_done; + } + strcpy(buffer, info->ai_canonname); +get_domain_done: + freeaddrinfo(info); + return error; +} + +static int +netlink_send(int fd, struct cn_msg *msg) +{ + struct nlmsghdr *nlh; + unsigned int size; + struct msghdr message; + char buffer[64]; + struct iovec iov[2]; + + size = NLMSG_SPACE(sizeof(struct cn_msg) + msg->len); + + nlh = (struct nlmsghdr *)buffer; + nlh->nlmsg_seq = 0; + nlh->nlmsg_pid = getpid(); + nlh->nlmsg_type = NLMSG_DONE; + nlh->nlmsg_len...

...nfo); + if (error != 0) { + strcpy(buffer, "getaddrinfo failed\n"); + error = 1; + goto get_domain_done; + } + strcpy(buffer, info->ai_canonname); +get_domain_done: + freeaddrinfo(info); + return error; +} + +static int +netlink_send(int fd, struct cn_msg *msg) +{ + struct nlmsghdr *nlh; + unsigned int size; + struct msghdr message; + char buffer[64]; + struct iovec iov[2]; + + size = NLMSG_SPACE(sizeof(struct cn_msg) + msg->len); + + nlh = (struct nlmsghdr *)buffer; + nlh->nlmsg_seq = 0; + nlh->nlmsg_pid = getpid(); + nlh->nlmsg_type = NLMSG_DONE; + nlh->nlmsg_len...

Based on net-next. This patch exports port->port_no port->port_id in the end of IFA_INFO_DATA. Cc: Herbert Xu <herbert at gondor.apana.org.au> Cc: Stephen Hemminger <shemminger at vyatta.com> Cc: "David S. Miller" <davem at davemloft.net> Cc: Thomas Graf <tgraf at suug.ch> Cc: Jesper Dangaard Brouer <brouer at redhat.com> Signed-off-by: Cong Wang

Hi, this set of patches contains the initial implementation of the IEEE 802.1Qbg standard: code for the exchange of EVB TLVs in LLDP frames to negotiate VSI capabalities as well as VDP VSI TLVs between a host with virtual machines and an adjacent switch. It supports setting the parameters of the TLV exchange from the command line using lldptool. VDP profiles consisting of

Hi, this set of patches contains the initial implementation of the IEEE 802.1Qbg standard: code for the exchange of EVB TLVs in LLDP frames to negotiate VSI capabalities as well as VDP VSI TLVs between a host with virtual machines and an adjacent switch. It supports setting the parameters of the TLV exchange from the command line using lldptool. VDP profiles consisting of

Hi, this set of patches contains the initial implementation of the IEEE 802.1Qbg standard: code for the exchange of EVB TLVs in LLDP frames to negotiate VSI capabalities as well as VDP VSI TLVs between a host with virtual machines and an adjacent switch. It supports setting the parameters of the TLV exchange from the command line using lldptool. VDP profiles consisting of

Hi, this set of patches contains the initial implementation of the IEEE 802.1Qbg standard: code for the exchange of EVB TLVs in LLDP frames to negotiate VSI capabalities as well as VDP VSI TLVs between a host with virtual machines and an adjacent switch. It supports setting the parameters of the TLV exchange from the command line using lldptool. VDP profiles consisting of

...nla_nest_end(skb, nest2); + skip: + idx++; + } + } + +out: + cb->args[1] = idx; + nla_nest_end(skb, nest); + return err; +} + +static int br_mdb_dump(struct sk_buff *skb, struct netlink_callback *cb) +{ + struct net_device *dev; + struct net *net = sock_net(skb->sk); + struct nlmsghdr *nlh = NULL; + int idx = 0, s_idx; + + s_idx = cb->args[0]; + + rcu_read_lock(); + + /* TODO: in case of rehashing, we need to check + * consistency for dumping. + */ + cb->seq = net->dev_base_seq; + + for_each_netdev_rcu(net, dev) { + if (dev->priv_flags & IFF_EBRIDGE) { + struct b...

...t (*ndo_mdb_dump)(struct net_device *dev, struct sk_buff *skb, + * struct netlink_callback *cb); + * Dumps MDB entries from dev. The first argument (marker) in the netlink + * callback is used by core rtnetlink code. + * * int (*ndo_bridge_setlink)(struct net_device *dev, struct nlmsghdr *nlh, * u16 flags, struct netlink_ext_ack *extack) * int (*ndo_bridge_getlink)(struct sk_buff *skb, u32 pid, u32 seq, @@ -1569,6 +1580,16 @@ struct net_device_ops { const unsigned char *addr, u16 vid, u32 portid, u32 seq, struct netlink_ext_ack *extack);...

...=0x5555556115a0) at segtree.c:978 #11 0x00005555555abaff in nlr_for_each_set (nlr=nlr at entry=0x5555556ac190, cb=cb at entry=0x5555555ab9c0 <rule_map_decompose_cb>, cache=0x55555560c340, data=0x0) at monitor.c:193 #12 0x00005555555ac326 in netlink_events_rule_cb (monh=0x7fffffffcce0, type=6, nlh=0x7fffffffcda0) at monitor.c:517 #13 netlink_events_cb (nlh=nlh at entry=0x7fffffffcda0, data=data at entry=0x7fffffffcce0) at monitor.c:890 #14 0x00005555555ad062 in netlink_echo_callback (nlh=nlh at entry=0x7fffffffcda0, data=data at entry=0x7fffffffde10) at monitor.c:924 #15 0x00007ffff7fb6748 i...

Hi, This set of patches contains the initial implementation of the IEEE 802.1Qbg standard: code for the exchange of EVB TLVs in LLDP frames to negotiate VSI capabalities as well as VDP VSI TLVs between a host with virtual machines and an adjacent switch. It supports setting the parameters of the TLV exchange from the command line using lldptool. VDP profiles consisting of

Hi, This set of patches contains the initial implementation of the IEEE 802.1Qbg standard: code for the exchange of EVB TLVs in LLDP frames to negotiate VSI capabalities as well as VDP VSI TLVs between a host with virtual machines and an adjacent switch. It supports setting the parameters of the TLV exchange from the command line using lldptool. VDP profiles consisting of

Changes since v9: * series re-ordering so make functionality more distinct. Basic vlan filtering is patches 1-4. Support for PVID/untagged vlans is patches 5 and 6. VLAN support for FDB/MDB is patches 7-11. Patch 12 is still additional egress policy. * Slight simplification to code that extracts the VID from skb. Since we now depend on the vlan module, at the time of input skb_tci is