Merge branch 'iproute2-master' into iproute2-next

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

include/SNAPSHOT.h

@@ -1 +1 @@
-static const char SNAPSHOT[] = "180402";
+static const char SNAPSHOT[] = "180608";

include/uapi/linux/bpf.h

@@ -143,6 +143,7 @@ enum bpf_prog_type {
 	BPF_PROG_TYPE_RAW_TRACEPOINT,
 	BPF_PROG_TYPE_CGROUP_SOCK_ADDR,
 	BPF_PROG_TYPE_LWT_SEG6LOCAL,
+	BPF_PROG_TYPE_LIRC_MODE2,
 };
 
 enum bpf_attach_type {
@@ -160,6 +161,9 @@ enum bpf_attach_type {
 	BPF_CGROUP_INET6_CONNECT,
 	BPF_CGROUP_INET4_POST_BIND,
 	BPF_CGROUP_INET6_POST_BIND,
+	BPF_CGROUP_UDP4_SENDMSG,
+	BPF_CGROUP_UDP6_SENDMSG,
+	BPF_LIRC_MODE2,
 	__MAX_BPF_ATTACH_TYPE
 };
 
@@ -1008,7 +1012,6 @@ union bpf_attr {
  * 		::
  *
  * 			# sysctl kernel.perf_event_max_stack=<new value>
- *
  * 	Return
  * 		The positive or null stack id on success, or a negative error
  * 		in case of failure.
@@ -1819,10 +1822,9 @@ union bpf_attr {
  * 		::
  *
  * 			# sysctl kernel.perf_event_max_stack=<new value>
- *
  * 	Return
- * 		a non-negative value equal to or less than size on success, or
+ * 		A non-negative value equal to or less than *size* on success,
- * 		a negative error in case of failure.
+ * 		or a negative error in case of failure.
  *
  * int skb_load_bytes_relative(const struct sk_buff *skb, u32 offset, void *to, u32 len, u32 start_header)
  * 	Description
@@ -1843,7 +1845,6 @@ union bpf_attr {
  * 		in socket filters where *skb*\ **->data** does not always point
  * 		to the start of the mac header and where "direct packet access"
  * 		is not available.
- *
  * 	Return
  * 		0 on success, or a negative error in case of failure.
  *
@@ -1853,22 +1854,24 @@ union bpf_attr {
  *		If lookup is successful and result shows packet is to be
  *		forwarded, the neighbor tables are searched for the nexthop.
  *		If successful (ie., FIB lookup shows forwarding and nexthop
- *		is resolved), the nexthop address is returned in ipv4_dst,
+ *		is resolved), the nexthop address is returned in ipv4_dst
- *		ipv6_dst or mpls_out based on family, smac is set to mac
+ *		or ipv6_dst based on family, smac is set to mac address of
- *		address of egress device, dmac is set to nexthop mac address,
+ *		egress device, dmac is set to nexthop mac address, rt_metric
- *		rt_metric is set to metric from route.
+ *		is set to metric from route (IPv4/IPv6 only).
  *
  *             *plen* argument is the size of the passed in struct.
- *             *flags* argument can be one or more BPF_FIB_LOOKUP_ flags:
+ *             *flags* argument can be a combination of one or more of the
+ *             following values:
  *
- *             **BPF_FIB_LOOKUP_DIRECT** means do a direct table lookup vs
+ *		**BPF_FIB_LOOKUP_DIRECT**
- *             full lookup using FIB rules
+ *			Do a direct table lookup vs full lookup using FIB
- *             **BPF_FIB_LOOKUP_OUTPUT** means do lookup from an egress
+ *			rules.
- *             perspective (default is ingress)
+ *		**BPF_FIB_LOOKUP_OUTPUT**
+ *			Perform lookup from an egress perspective (default is
+ *			ingress).
  *
  *             *ctx* is either **struct xdp_md** for XDP programs or
  *             **struct sk_buff** tc cls_act programs.
- *
  *     Return
  *             Egress device index on success, 0 if packet needs to continue
  *             up the stack for further processing or a negative error in case
@@ -2004,6 +2007,74 @@ union bpf_attr {
  * 		direct packet access.
  *	Return
  * 		0 on success, or a negative error in case of failure.
+ *
+ * int bpf_rc_keydown(void *ctx, u32 protocol, u64 scancode, u32 toggle)
+ *	Description
+ *		This helper is used in programs implementing IR decoding, to
+ *		report a successfully decoded key press with *scancode*,
+ *		*toggle* value in the given *protocol*. The scancode will be
+ *		translated to a keycode using the rc keymap, and reported as
+ *		an input key down event. After a period a key up event is
+ *		generated. This period can be extended by calling either
+ *		**bpf_rc_keydown** () again with the same values, or calling
+ *		**bpf_rc_repeat** ().
+ *
+ *		Some protocols include a toggle bit, in case the button	was
+ *		released and pressed again between consecutive scancodes.
+ *
+ *		The *ctx* should point to the lirc sample as passed into
+ *		the program.
+ *
+ *		The *protocol* is the decoded protocol number (see
+ *		**enum rc_proto** for some predefined values).
+ *
+ *		This helper is only available is the kernel was compiled with
+ *		the **CONFIG_BPF_LIRC_MODE2** configuration option set to
+ *		"**y**".
+ *
+ *	Return
+ *		0
+ *
+ * int bpf_rc_repeat(void *ctx)
+ *	Description
+ *		This helper is used in programs implementing IR decoding, to
+ *		report a successfully decoded repeat key message. This delays
+ *		the generation of a key up event for previously generated
+ *		key down event.
+ *
+ *		Some IR protocols like NEC have a special IR message for
+ *		repeating last button, for when a button is held down.
+ *
+ *		The *ctx* should point to the lirc sample as passed into
+ *		the program.
+ *
+ *		This helper is only available is the kernel was compiled with
+ *		the **CONFIG_BPF_LIRC_MODE2** configuration option set to
+ *		"**y**".
+ *
+ *	Return
+ *		0
+ *
+ * uint64_t bpf_skb_cgroup_id(struct sk_buff *skb)
+ * 	Description
+ * 		Return the cgroup v2 id of the socket associated with the *skb*.
+ * 		This is roughly similar to the **bpf_get_cgroup_classid**\ ()
+ * 		helper for cgroup v1 by providing a tag resp. identifier that
+ * 		can be matched on or used for map lookups e.g. to implement
+ * 		policy. The cgroup v2 id of a given path in the hierarchy is
+ * 		exposed in user space through the f_handle API in order to get
+ * 		to the same 64-bit id.
+ *
+ * 		This helper can be used on TC egress path, but not on ingress,
+ * 		and is available only if the kernel was compiled with the
+ * 		**CONFIG_SOCK_CGROUP_DATA** configuration option.
+ * 	Return
+ * 		The id is returned or 0 in case the id could not be retrieved.
+ *
+ * u64 bpf_get_current_cgroup_id(void)
+ * 	Return
+ * 		A 64-bit integer containing the current cgroup id based
+ * 		on the cgroup within which the current task is running.
  */
 #define __BPF_FUNC_MAPPER(FN)		\
 	FN(unspec),			\
@@ -2082,7 +2153,11 @@ union bpf_attr {
 	FN(lwt_push_encap),		\
 	FN(lwt_seg6_store_bytes),	\
 	FN(lwt_seg6_adjust_srh),	\
-	FN(lwt_seg6_action),
+	FN(lwt_seg6_action),		\
+	FN(rc_repeat),			\
+	FN(rc_keydown),			\
+	FN(skb_cgroup_id),		\
+	FN(get_current_cgroup_id),
 
 /* integer value in 'imm' field of BPF_CALL instruction selects which helper
  * function eBPF program intends to call
@@ -2199,7 +2274,7 @@ struct bpf_tunnel_key {
 	};
 	__u8 tunnel_tos;
 	__u8 tunnel_ttl;
-	__u16 tunnel_ext;
+	__u16 tunnel_ext;	/* Padding, future use. */
 	__u32 tunnel_label;
 };
 
@@ -2210,6 +2285,7 @@ struct bpf_xfrm_state {
 	__u32 reqid;
 	__u32 spi;	/* Stored in network byte order */
 	__u16 family;
+	__u16 ext;	/* Padding, future use. */
 	union {
 		__u32 remote_ipv4;	/* Stored in network byte order */
 		__u32 remote_ipv6[4];	/* Stored in network byte order */
@@ -2332,6 +2408,7 @@ struct bpf_map_info {
 	__u32 map_flags;
 	char  name[BPF_OBJ_NAME_LEN];
 	__u32 ifindex;
+	__u32 :32;
 	__u64 netns_dev;
 	__u64 netns_ino;
 	__u32 btf_id;
@@ -2363,6 +2440,12 @@ struct bpf_sock_addr {
 	__u32 family;		/* Allows 4-byte read, but no write */
 	__u32 type;		/* Allows 4-byte read, but no write */
 	__u32 protocol;		/* Allows 4-byte read, but no write */
+	__u32 msg_src_ip4;	/* Allows 1,2,4-byte read an 4-byte write.
+				 * Stored in network byte order.
+				 */
+	__u32 msg_src_ip6[4];	/* Allows 1,2,4-byte read an 4-byte write.
+				 * Stored in network byte order.
+				 */
 };
 
 /* User bpf_sock_ops struct to access socket values and specify request ops
@@ -2530,8 +2613,10 @@ struct bpf_raw_tracepoint_args {
 #define BPF_FIB_LOOKUP_OUTPUT  BIT(1)
 
 struct bpf_fib_lookup {
-	/* input */
+	/* input:  network family for lookup (AF_INET, AF_INET6)
-	__u8	family;   /* network family, AF_INET, AF_INET6, AF_MPLS */
+	 * output: network family of egress nexthop
+	 */
+	__u8	family;
 
 	/* set if lookup is to consider L4 data - e.g., FIB rules */
 	__u8	l4_protocol;
@@ -2545,24 +2630,22 @@ struct bpf_fib_lookup {
 	union {
 		/* inputs to lookup */
 		__u8	tos;		/* AF_INET  */
-		__be32	flowlabel;	/* AF_INET6 */
+		__be32	flowinfo;	/* AF_INET6, flow_label + priority */
 
-		/* output: metric of fib result */
+		/* output: metric of fib result (IPv4/IPv6 only) */
-		__u32 rt_metric;
+		__u32	rt_metric;
 	};
 
 	union {
-		__be32		mpls_in;
 		__be32		ipv4_src;
 		__u32		ipv6_src[4];  /* in6_addr; network order */
 	};
 
-	/* input to bpf_fib_lookup, *dst is destination address.
+	/* input to bpf_fib_lookup, ipv{4,6}_dst is destination address in
-	 * output: bpf_fib_lookup sets to gateway address
+	 * network header. output: bpf_fib_lookup sets to gateway address
+	 * if FIB lookup returns gateway route
 	 */
 	union {
-		/* return for MPLS lookups */
-		__be32		mpls_out[4];  /* support up to 4 labels */
 		__be32		ipv4_dst;
 		__u32		ipv6_dst[4];  /* in6_addr; network order */
 	};

include/uapi/linux/rtnetlink.h

@@ -254,6 +254,11 @@ enum {
 #define RTPROT_DHCP	16      /* DHCP client */
 #define RTPROT_MROUTED	17      /* Multicast daemon */
 #define RTPROT_BABEL	42      /* Babel daemon */
+#define RTPROT_BGP	186     /* BGP Routes */
+#define RTPROT_ISIS	187     /* ISIS Routes */
+#define RTPROT_OSPF	188     /* OSPF Routes */
+#define RTPROT_RIP	189     /* RIP Routes */
+#define RTPROT_EIGRP	192     /* EIGRP Routes */
 
 /* rtm_scope
 

include/uapi/linux/types.h

@@ -44,11 +44,7 @@ typedef __u32 __bitwise __wsum;
 #define __aligned_be64 __be64 __attribute__((aligned(8)))
 #define __aligned_le64 __le64 __attribute__((aligned(8)))
 
-#ifdef __CHECK_POLL
 typedef unsigned __bitwise __poll_t;
-#else
-typedef unsigned __poll_t;
-#endif
 
 #endif /*  __ASSEMBLY__ */
 #endif /* _LINUX_TYPES_H */

ip/ip_common.h

@@ -60,6 +60,9 @@ void netns_map_init(void);
 void netns_nsid_socket_init(void);
 int print_nsid(const struct sockaddr_nl *who,
 	       struct nlmsghdr *n, void *arg);
+char *get_name_from_nsid(int nsid);
+int get_netnsid_from_name(const char *name);
+int set_netnsid_from_name(const char *name, int nsid);
 int do_ipaddr(int argc, char **argv);
 int do_ipaddrlabel(int argc, char **argv);
 int do_iproute(int argc, char **argv);

ip/ipaddress.c

@@ -955,10 +955,16 @@ int print_linkinfo(const struct sockaddr_nl *who,
 		if (is_json_context()) {
 			print_int(PRINT_JSON, "link_netnsid", NULL, id);
 		} else {
-			if (id >= 0)
+			if (id >= 0) {
-				print_int(PRINT_FP, NULL,
+				char *name = get_name_from_nsid(id);
-					  " link-netnsid %d", id);
+
-			else
+				if (name)
+					print_string(PRINT_FP, NULL,
+						     " link-netns %s", name);
+				else
+					print_int(PRINT_FP, NULL,
+						  " link-netnsid %d", id);
+			} else
 				print_string(PRINT_FP, NULL,
 					     " link-netnsid %s", "unknown");
 		}
@@ -966,8 +972,12 @@ int print_linkinfo(const struct sockaddr_nl *who,
 
 	if (tb[IFLA_NEW_NETNSID]) {
 		int id = rta_getattr_u32(tb[IFLA_NEW_NETNSID]);
+		char *name = get_name_from_nsid(id);
 
-		print_int(PRINT_FP, NULL, " new-nsid %d", id);
+		if (name)
+			print_string(PRINT_FP, NULL, " new-netns %s", name);
+		else
+			print_int(PRINT_FP, NULL, " new-netnsid %d", id);
 	}
 	if (tb[IFLA_NEW_IFINDEX]) {
 		int id = rta_getattr_u32(tb[IFLA_NEW_IFINDEX]);

ip/iplink.c

@@ -85,7 +85,7 @@ void iplink_usage(void)
 		"	                  [ broadcast LLADDR ]\n"
 		"	                  [ mtu MTU ]\n"
 		"	                  [ netns { PID | NAME } ]\n"
-		"	                  [ link-netnsid ID ]\n"
+		"	                  [ link-netns NAME | link-netnsid ID ]\n"
 		"			  [ alias NAME ]\n"
 		"	                  [ vf NUM [ mac LLADDR ]\n"
 		"				   [ vlan VLANID [ qos VLAN-QOS ] [ proto VLAN-PROTO ] ]\n"
@@ -865,10 +865,24 @@ int iplink_parse(int argc, char **argv, struct iplink_req *req, char **type)
 				 IFLA_INET6_ADDR_GEN_MODE, mode);
 			addattr_nest_end(&req->n, afs6);
 			addattr_nest_end(&req->n, afs);
+		} else if (matches(*argv, "link-netns") == 0) {
+			NEXT_ARG();
+			if (link_netnsid != -1)
+				duparg("link-netns/link-netnsid", *argv);
+			link_netnsid = get_netnsid_from_name(*argv);
+			/* No nsid? Try to assign one. */
+			if (link_netnsid < 0)
+				set_netnsid_from_name(*argv, -1);
+			link_netnsid = get_netnsid_from_name(*argv);
+			if (link_netnsid < 0)
+				invarg("Invalid \"link-netns\" value\n",
+				       *argv);
+			addattr32(&req->n, sizeof(*req), IFLA_LINK_NETNSID,
+				  link_netnsid);
 		} else if (matches(*argv, "link-netnsid") == 0) {
 			NEXT_ARG();
 			if (link_netnsid != -1)
-				duparg("link-netnsid", *argv);
+				duparg("link-netns/link-netnsid", *argv);
 			if (get_integer(&link_netnsid, *argv, 0))
 				invarg("Invalid \"link-netnsid\" value\n",
 				       *argv);

ip/ipnetns.c

@@ -91,7 +91,7 @@ static int ipnetns_have_nsid(void)
 	return have_rtnl_getnsid;
 }
 
-static int get_netnsid_from_name(const char *name)
+int get_netnsid_from_name(const char *name)
 {
 	struct {
 		struct nlmsghdr n;
@@ -108,6 +108,8 @@ static int get_netnsid_from_name(const char *name)
 	struct rtgenmsg *rthdr;
 	int len, fd;
 
+	netns_nsid_socket_init();
+
 	fd = netns_get_fd(name);
 	if (fd < 0)
 		return fd;
@@ -169,6 +171,20 @@ static struct nsid_cache *netns_map_get_by_nsid(int nsid)
 	return NULL;
 }
 
+char *get_name_from_nsid(int nsid)
+{
+	struct nsid_cache *c;
+
+	netns_nsid_socket_init();
+	netns_map_init();
+
+	c = netns_map_get_by_nsid(nsid);
+	if (c)
+		return c->name;
+
+	return NULL;
+}
+
 static int netns_map_add(int nsid, const char *name)
 {
 	struct nsid_cache *c;
@@ -691,7 +707,7 @@ out_delete:
 	return -1;
 }
 
-static int set_netnsid_from_name(const char *name, int nsid)
+int set_netnsid_from_name(const char *name, int nsid)
 {
 	struct {
 		struct nlmsghdr n;
@@ -705,6 +721,8 @@ static int set_netnsid_from_name(const char *name, int nsid)
 	};
 	int fd, err = 0;
 
+	netns_nsid_socket_init();
+
 	fd = netns_get_fd(name);
 	if (fd < 0)
 		return fd;

tipc/link.c

@@ -97,6 +97,7 @@ static int cmd_link_get_prop(struct nlmsghdr *nlh, const struct cmd *cmd,
 {
 	int prop;
 	char buf[MNL_SOCKET_BUFFER_SIZE];
+	struct nlattr *attrs;
 	struct opt *opt;
 	struct opt opts[] = {
 		{ "link",		OPT_KEYVAL,	NULL },
@@ -131,7 +132,9 @@ static int cmd_link_get_prop(struct nlmsghdr *nlh, const struct cmd *cmd,
 		fprintf(stderr, "error, missing link\n");
 		return -EINVAL;
 	}
+	attrs = mnl_attr_nest_start(nlh, TIPC_NLA_LINK);
 	mnl_attr_put_strz(nlh, TIPC_NLA_LINK_NAME, opt->val);
+	mnl_attr_nest_end(nlh, attrs);
 
 	return msg_doit(nlh, link_get_cb, &prop);
 }