Merge branch 'tc-tunnels-tos-ttl' into iproute2-next

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

man/man8/tc-flower.8

@@ -76,6 +76,10 @@ flower \- flow based traffic control filter
 .IR ipv4_address " | " ipv6_address " } | "
 .B enc_dst_port
 .IR port_number " | "
+.B enc_tos
+.IR TOS " | "
+.B enc_ttl
+.IR TTL " | "
 .BR ip_flags
 .IR IP_FLAGS
 .SH DESCRIPTION
@@ -275,6 +279,10 @@ bits is assumed.
 .BI enc_src_ip " PREFIX"
 .TQ
 .BI enc_dst_port " NUMBER"
+.TQ
+.BI enc_tos " NUMBER"
+.TQ
+.BI enc_ttl " NUMBER"
 Match on IP tunnel metadata. Key id
 .I NUMBER
 is a 32 bit tunnel key id (e.g. VNI for VXLAN tunnel).
@@ -283,7 +291,11 @@ must be a valid IPv4 or IPv6 address optionally followed by a slash and the
 prefix length. If the prefix is missing, \fBtc\fR assumes a full-length
 host match.  Dst port
 .I NUMBER
-is a 16 bit UDP dst port.
+is a 16 bit UDP dst port. Tos
+.I NUMBER
+is an 8 bit tos (dscp+ecn) value, ttl
+.I NUMBER
+is an 8 bit time-to-live value.
 .TP
 .BI ip_flags " IP_FLAGS"
 .I IP_FLAGS

man/man8/tc-tunnel_key.8

@@ -16,6 +16,8 @@ tunnel_key - Tunnel metadata manipulation
 .IR ADDRESS
 .BI id " KEY_ID"
 .BI dst_port " UDP_PORT"
+.BI tos " TOS"
+.BI ttl " TTL"
 .RB "[ " csum " | " nocsum " ]"
 
 .SH DESCRIPTION
@@ -89,6 +91,12 @@ is specified in the form CLASS:TYPE:DATA, where CLASS is represented as a
 variable length hexadecimal value. Additionally multiple options may be
 listed using a comma delimiter.
 .TP
+.B tos
+Outer header TOS
+.TP
+.B ttl
+Outer header TTL
+.TP
 .RB [ no ] csum
 Controlls outer UDP checksum. When set to
 .B csum

tc/f_flower.c

@@ -77,6 +77,8 @@ static void explain(void)
 		"                       enc_dst_ip [ IPV4-ADDR | IPV6-ADDR ] |\n"
 		"                       enc_src_ip [ IPV4-ADDR | IPV6-ADDR ] |\n"
 		"                       enc_key_id [ KEY-ID ] |\n"
+		"                       enc_tos MASKED-IP_TOS |\n"
+		"                       enc_ttl MASKED-IP_TTL |\n"
 		"                       ip_flags IP-FLAGS | \n"
 		"                       enc_dst_port [ port_number ] }\n"
 		"       FILTERID := X:Y:Z\n"
@@ -1019,6 +1021,26 @@ static int flower_parse_opt(struct filter_util *qu, char *handle,
 				fprintf(stderr, "Illegal \"enc_dst_port\"\n");
 				return -1;
 			}
+		} else if (matches(*argv, "enc_tos") == 0) {
+			NEXT_ARG();
+			ret = flower_parse_ip_tos_ttl(*argv,
+						      TCA_FLOWER_KEY_ENC_IP_TOS,
+						      TCA_FLOWER_KEY_ENC_IP_TOS_MASK,
+						      n);
+			if (ret < 0) {
+				fprintf(stderr, "Illegal \"enc_tos\"\n");
+				return -1;
+			}
+		} else if (matches(*argv, "enc_ttl") == 0) {
+			NEXT_ARG();
+			ret = flower_parse_ip_tos_ttl(*argv,
+						      TCA_FLOWER_KEY_ENC_IP_TTL,
+						      TCA_FLOWER_KEY_ENC_IP_TTL_MASK,
+						      n);
+			if (ret < 0) {
+				fprintf(stderr, "Illegal \"enc_ttl\"\n");
+				return -1;
+			}
 		} else if (matches(*argv, "action") == 0) {
 			NEXT_ARG();
 			ret = parse_action(&argc, &argv, TCA_FLOWER_ACT, n);
@@ -1542,6 +1564,11 @@ static int flower_print_opt(struct filter_util *qu, FILE *f,
 
 	flower_print_port("enc_dst_port", tb[TCA_FLOWER_KEY_ENC_UDP_DST_PORT]);
 
+	flower_print_ip_attr("enc_tos", tb[TCA_FLOWER_KEY_ENC_IP_TOS],
+			    tb[TCA_FLOWER_KEY_ENC_IP_TOS_MASK]);
+	flower_print_ip_attr("enc_ttl", tb[TCA_FLOWER_KEY_ENC_IP_TTL],
+			    tb[TCA_FLOWER_KEY_ENC_IP_TTL_MASK]);
+
 	flower_print_matching_flags("ip_flags", FLOWER_IP_FLAGS,
 				    tb[TCA_FLOWER_KEY_FLAGS],
 				    tb[TCA_FLOWER_KEY_FLAGS_MASK]);

tc/m_tunnel_key.c

@@ -190,6 +190,22 @@ static int tunnel_key_parse_geneve_opts(char *str, struct nlmsghdr *n)
 	return 0;
 }
 
+static int tunnel_key_parse_tos_ttl(char *str, int type, struct nlmsghdr *n)
+{
+	int ret;
+	__u8 val;
+
+	ret = get_u8(&val, str, 10);
+	if (ret)
+		ret = get_u8(&val, str, 16);
+	if (ret)
+		return -1;
+
+	addattr8(n, MAX_MSG, type, val);
+
+	return 0;
+}
+
 static int parse_tunnel_key(struct action_util *a, int *argc_p, char ***argv_p,
 			    int tca_id, struct nlmsghdr *n)
 {
@@ -273,6 +289,22 @@ static int parse_tunnel_key(struct action_util *a, int *argc_p, char ***argv_p,
 				fprintf(stderr, "Illegal \"geneve_opts\"\n");
 				return -1;
 			}
+		} else if (matches(*argv, "tos") == 0) {
+			NEXT_ARG();
+			ret = tunnel_key_parse_tos_ttl(*argv,
+							TCA_TUNNEL_KEY_ENC_TOS, n);
+			if (ret < 0) {
+				fprintf(stderr, "Illegal \"tos\"\n");
+				return -1;
+			}
+		} else if (matches(*argv, "ttl") == 0) {
+			NEXT_ARG();
+			ret = tunnel_key_parse_tos_ttl(*argv,
+							TCA_TUNNEL_KEY_ENC_TTL, n);
+			if (ret < 0) {
+				fprintf(stderr, "Illegal \"ttl\"\n");
+				return -1;
+			}
 		} else if (matches(*argv, "csum") == 0) {
 			csum = 1;
 		} else if (matches(*argv, "nocsum") == 0) {
@@ -435,6 +467,23 @@ static void tunnel_key_print_key_opt(const char *name, struct rtattr *attr)
 					tb[TCA_TUNNEL_KEY_ENC_OPTS_GENEVE]);
 }
 
+static void tunnel_key_print_tos_ttl(FILE *f, char *name,
+				     struct rtattr *attr)
+{
+	if (!attr)
+		return;
+
+	if (matches(name, "tos") == 0 && rta_getattr_u8(attr) != 0) {
+		print_string(PRINT_FP, NULL, "%s", _SL_);
+		print_uint(PRINT_ANY, "tos", "\ttos 0x%x",
+			   rta_getattr_u8(attr));
+	} else if (matches(name, "ttl") == 0 && rta_getattr_u8(attr) != 0) {
+		print_string(PRINT_FP, NULL, "%s", _SL_);
+		print_uint(PRINT_ANY, "ttl", "\tttl %u",
+			   rta_getattr_u8(attr));
+	}
+}
+
 static int print_tunnel_key(struct action_util *au, FILE *f, struct rtattr *arg)
 {
 	struct rtattr *tb[TCA_TUNNEL_KEY_MAX + 1];
@@ -476,6 +525,10 @@ static int print_tunnel_key(struct action_util *au, FILE *f, struct rtattr *arg)
 					 tb[TCA_TUNNEL_KEY_ENC_OPTS]);
 		tunnel_key_print_flag(f, "nocsum", "csum",
 				      tb[TCA_TUNNEL_KEY_NO_CSUM]);
+		tunnel_key_print_tos_ttl(f, "tos",
+					  tb[TCA_TUNNEL_KEY_ENC_TOS]);
+		tunnel_key_print_tos_ttl(f, "ttl",
+					  tb[TCA_TUNNEL_KEY_ENC_TTL]);
 		break;
 	}
 	print_action_control(f, " ", parm->action, "");