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https://git.hardenedbsd.org/hardenedbsd/HardenedBSD.git
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ipfw: add support radix tables and table lookup for MAC addresses
By analogy with IP address matching, add a way to use ipfw radix tables for MAC matching. This is implemented using new ipfw table with mac:radix type. Also there are src-mac and dst-mac lookup commands added. Usage example: ipfw table 1 create type mac ipfw table 1 add 11:22:33:44:55:66/48 ipfw add skipto tablearg src-mac 'table(1)' ipfw add deny src-mac 'table(1, 100)' ipfw add deny lookup dst-mac 1 Note: sysctl net.link.ether.ipfw=1 should be set to enable ipfw filtering on L2. Reviewed by: melifaro Obtained from: Yandex LLC MFC after: 1 month Relnotes: yes Sponsored by: Yandex LLC Differential Revision: https://reviews.freebsd.org/D35103
This commit is contained in:
Arseny Smalyuk
Andrey V. Elsukov
parent
32a01b2b86
commit
81cac3906e
@ -1,7 +1,7 @@
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.\"
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.\" $FreeBSD$
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.\"
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.Dd June 14, 2021
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.Dd June 4, 2022
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.Dt IPFW 8
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.Os
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.Sh NAME
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@ -1610,6 +1610,20 @@ Matches IPv6 packets containing any of the flow labels given in
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.Ar labels .
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.Ar labels
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is a comma separated list of numeric flow labels.
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.It Cm dst-mac Ar table Ns Pq Ar name Ns Op , Ns Ar value
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Search for the destination MAC address entry in lookup table
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.Ar name .
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If not found, the match fails.
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Otherwise, the match succeeds and
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.Cm tablearg
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is set to the value extracted from the table.
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.It Cm src-mac Ar table Ns Pq Ar name Ns Op , Ns Ar value
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Search for the source MAC address entry in lookup table
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.Ar name .
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If not found, the match fails.
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Otherwise, the match succeeds and
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.Cm tablearg
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is set to the value extracted from the table.
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.It Cm frag Ar spec
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Matches IPv4 packets whose
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.Cm ip_off
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@ -1823,7 +1837,7 @@ set of parameters as specified in the rule.
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One or more
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of source and destination addresses and ports can be
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specified.
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.It Cm lookup Bro Cm dst-ip | dst-port | src-ip | src-port | uid | jail Brc Ar name
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.It Cm lookup Bro Cm dst-ip | dst-port | dst-mac | src-ip | src-port | src-mac | uid | jail Brc Ar name
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Search an entry in lookup table
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.Ar name
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that matches the field specified as argument.
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@ -2133,7 +2147,7 @@ There may be up to 65535 different lookup tables.
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.Pp
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The following table types are supported:
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.Bl -tag -width indent
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.It Ar table-type : Ar addr | iface | number | flow
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.It Ar table-type : Ar addr | iface | number | flow | mac
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.It Ar table-key : Ar addr Ns Oo / Ns Ar masklen Oc | iface-name | number | flow-spec
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.It Ar flow-spec : Ar flow-field Ns Op , Ns Ar flow-spec
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.It Ar flow-field : src-ip | proto | src-port | dst-ip | dst-port
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@ -2163,6 +2177,20 @@ Ranges are not supported.
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Matches packet fields specified by
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.Ar flow
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type suboptions with table entries.
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.It Cm mac
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Matches MAC address.
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Each entry is represented by an
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.Ar addr Ns Op / Ns Ar masklen
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and will match all addresses with base
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.Ar addr
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and mask width of
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.Ar masklen
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bits.
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If
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.Ar masklen
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is not specified, it defaults to 48.
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When looking up an MAC address in a table, the most specific
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entry will match.
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.El
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.Pp
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Tables require explicit creation via
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@ -2266,7 +2294,7 @@ Shows generic table information and algo-specific data.
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The following lookup algorithms are supported:
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.Bl -tag -width indent
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.It Ar algo-desc : algo-name | "algo-name algo-data"
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.It Ar algo-name : Ar addr: radix | addr: hash | iface: array | number: array | flow: hash
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.It Ar algo-name : Ar addr: radix | addr: hash | iface: array | number: array | flow: hash | mac: radix
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.It Cm addr: radix
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Separate Radix trees for IPv4 and IPv6, the same way as the routing table (see
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.Xr route 4 ) .
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@ -2291,6 +2319,8 @@ Array storing sorted u32 numbers.
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Auto-growing hash storing flow entries.
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Search calculates hash on required packet fields and searches for matching
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entries in selected bucket.
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.It Cm mac: radix
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Radix tree for MAC address
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.El
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.Pp
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The
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@ -300,12 +300,20 @@ static struct _s_x rule_action_params[] = {
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/*
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* The 'lookup' instruction accepts one of the following arguments.
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* -1 is a terminator for the list.
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* Arguments are passed as v[1] in O_DST_LOOKUP options.
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*/
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static int lookup_key[] = {
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TOK_DSTIP, TOK_SRCIP, TOK_DSTPORT, TOK_SRCPORT,
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TOK_UID, TOK_JAIL, TOK_DSCP, -1 };
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static struct _s_x lookup_keys[] = {
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{ "dst-ip", LOOKUP_DST_IP },
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{ "src-ip", LOOKUP_SRC_IP },
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{ "dst-port", LOOKUP_DST_PORT },
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{ "src-port", LOOKUP_SRC_PORT },
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{ "dst-mac", LOOKUP_DST_MAC },
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{ "src-mac", LOOKUP_SRC_MAC },
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{ "uid", LOOKUP_UID },
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{ "jail", LOOKUP_JAIL },
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{ "dscp", LOOKUP_DSCP },
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{ NULL, 0 },
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};
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static struct _s_x rule_options[] = {
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{ "tagged", TOK_TAGGED },
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@ -358,6 +366,8 @@ static struct _s_x rule_options[] = {
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{ "src-ip", TOK_SRCIP },
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{ "dst-port", TOK_DSTPORT },
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{ "src-port", TOK_SRCPORT },
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{ "dst-mac", TOK_DSTMAC },
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{ "src-mac", TOK_SRCMAC },
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{ "proto", TOK_PROTO },
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{ "MAC", TOK_MAC },
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{ "mac", TOK_MAC },
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@ -368,18 +378,18 @@ static struct _s_x rule_options[] = {
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{ "ipsec", TOK_IPSEC },
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{ "icmp6type", TOK_ICMP6TYPES },
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{ "icmp6types", TOK_ICMP6TYPES },
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{ "ext6hdr", TOK_EXT6HDR},
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{ "flow-id", TOK_FLOWID},
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{ "ipv6", TOK_IPV6},
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{ "ip6", TOK_IPV6},
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{ "ipv4", TOK_IPV4},
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{ "ip4", TOK_IPV4},
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{ "dst-ipv6", TOK_DSTIP6},
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{ "dst-ip6", TOK_DSTIP6},
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{ "src-ipv6", TOK_SRCIP6},
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{ "src-ip6", TOK_SRCIP6},
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{ "lookup", TOK_LOOKUP},
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{ "flow", TOK_FLOW},
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{ "ext6hdr", TOK_EXT6HDR },
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{ "flow-id", TOK_FLOWID },
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{ "ipv6", TOK_IPV6 },
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{ "ip6", TOK_IPV6 },
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{ "ipv4", TOK_IPV4 },
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{ "ip4", TOK_IPV4 },
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{ "dst-ipv6", TOK_DSTIP6 },
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{ "dst-ip6", TOK_DSTIP6 },
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{ "src-ipv6", TOK_SRCIP6 },
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{ "src-ip6", TOK_SRCIP6 },
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{ "lookup", TOK_LOOKUP },
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{ "flow", TOK_FLOW },
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{ "defer-action", TOK_SKIPACTION },
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{ "defer-immediate-action", TOK_SKIPACTION },
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{ "//", TOK_COMMENT },
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@ -1211,11 +1221,9 @@ print_ip(struct buf_pr *bp, const struct format_opts *fo,
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bprintf(bp, " ");
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if (cmd->o.opcode == O_IP_DST_LOOKUP && len > F_INSN_SIZE(ipfw_insn_u32)) {
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uint32_t d = a[1];
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const char *arg = "<invalid>";
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const char *arg;
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if (d < sizeof(lookup_key)/sizeof(lookup_key[0]))
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arg = match_value(rule_options, lookup_key[d]);
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arg = match_value(lookup_keys, a[1]);
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t = table_search_ctlv(fo->tstate,
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((const ipfw_insn *)cmd)->arg1);
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bprintf(bp, "lookup %s %s", arg, t);
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@ -1331,6 +1339,22 @@ print_mac(struct buf_pr *bp, const ipfw_insn_mac *mac)
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format_mac(bp, mac->addr + 6, mac->mask + 6);
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}
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static void
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print_mac_lookup(struct buf_pr *bp, const struct format_opts *fo,
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const ipfw_insn *cmd)
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{
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uint32_t len = F_LEN(cmd);
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char *t;
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bprintf(bp, " ");
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t = table_search_ctlv(fo->tstate, cmd->arg1);
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bprintf(bp, "table(%s", t);
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if (len == F_INSN_SIZE(ipfw_insn_u32))
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bprintf(bp, ",%u", ((const ipfw_insn_u32 *)cmd)->d[0]);
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bprintf(bp, ")");
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}
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static void
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fill_icmptypes(ipfw_insn_u32 *cmd, char *av)
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{
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@ -1518,6 +1542,14 @@ print_instruction(struct buf_pr *bp, const struct format_opts *fo,
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bprintf(bp, " dst-ip6");
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print_ip6(bp, insntod(cmd, ip6));
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break;
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case O_MAC_SRC_LOOKUP:
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bprintf(bp, " src-mac");
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print_mac_lookup(bp, fo, cmd);
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break;
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case O_MAC_DST_LOOKUP:
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bprintf(bp, " dst-mac");
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print_mac_lookup(bp, fo, cmd);
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break;
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case O_FLOW6ID:
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print_flow6id(bp, insntod(cmd, u32));
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break;
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@ -2650,7 +2682,6 @@ list_static_range(struct cmdline_opts *co, struct format_opts *fo,
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int n, seen;
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struct ip_fw_rule *r;
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struct ip_fw_bcounter *cntr;
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int c = 0;
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for (n = seen = 0; n < rcnt; n++,
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rtlv = (ipfw_obj_tlv *)((caddr_t)rtlv + rtlv->length)) {
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@ -2669,7 +2700,6 @@ list_static_range(struct cmdline_opts *co, struct format_opts *fo,
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if (r->rulenum >= fo->first && r->rulenum <= fo->last) {
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show_static_rule(co, fo, bp, r, cntr);
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printf("%s", bp->buf);
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c += rtlv->length;
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bp_flush(bp);
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seen++;
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}
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@ -2788,13 +2818,12 @@ ipfw_show_config(struct cmdline_opts *co, struct format_opts *fo,
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char *endptr;
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size_t readsz;
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struct buf_pr bp;
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ipfw_obj_ctlv *ctlv, *tstate;
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ipfw_obj_ctlv *ctlv;
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ipfw_obj_tlv *rbase;
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/*
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* Handle tablenames TLV first, if any
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*/
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tstate = NULL;
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rbase = NULL;
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dynbase = NULL;
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dynsz = 0;
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@ -3682,6 +3711,29 @@ add_dstip(ipfw_insn *cmd, char *av, int cblen, struct tidx *tstate)
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return cmd;
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}
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static ipfw_insn *
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add_srcmac(ipfw_insn *cmd, char *av, struct tidx *tstate)
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{
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if (strncmp(av, "table(", 6) == 0)
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fill_table(cmd, av, O_MAC_SRC_LOOKUP, tstate);
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else
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errx(EX_DATAERR, "only mac table lookup is supported %s", av);
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return cmd;
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}
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static ipfw_insn *
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add_dstmac(ipfw_insn *cmd, char *av, struct tidx *tstate)
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{
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if (strncmp(av, "table(", 6) == 0)
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fill_table(cmd, av, O_MAC_DST_LOOKUP, tstate);
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else
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errx(EX_DATAERR, "only mac table lookup is supported %s", av);
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return cmd;
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}
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static struct _s_x f_reserved_keywords[] = {
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{ "altq", TOK_OR },
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{ "//", TOK_OR },
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@ -4912,6 +4964,21 @@ read_options:
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}
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break;
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case TOK_SRCMAC:
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NEED1("missing source MAC");
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if (add_srcmac(cmd, *av, tstate)) {
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av++;
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}
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break;
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case TOK_DSTMAC:
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NEED1("missing destination MAC");
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if (add_dstmac(cmd, *av, tstate)) {
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av++;
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}
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break;
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case TOK_SRCPORT:
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NEED1("missing source port");
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if (_substrcmp(*av, "any") == 0 ||
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@ -5013,28 +5080,23 @@ read_options:
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case TOK_LOOKUP: {
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ipfw_insn_u32 *c = (ipfw_insn_u32 *)cmd;
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int j;
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if (!av[0] || !av[1])
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errx(EX_USAGE, "format: lookup argument tablenum");
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cmd->opcode = O_IP_DST_LOOKUP;
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cmd->len |= F_INSN_SIZE(ipfw_insn) + 2;
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i = match_token(rule_options, *av);
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for (j = 0; lookup_key[j] >= 0 ; j++) {
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if (i == lookup_key[j])
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break;
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}
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if (lookup_key[j] <= 0)
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i = match_token(lookup_keys, *av);
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if (i == -1)
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errx(EX_USAGE, "format: cannot lookup on %s", *av);
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__PAST_END(c->d, 1) = j; // i converted to option
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__PAST_END(c->d, 1) = i;
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av++;
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if ((j = pack_table(tstate, *av)) == 0)
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if ((i = pack_table(tstate, *av)) == 0)
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errx(EX_DATAERR, "Invalid table name: %s", *av);
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cmd->arg1 = j;
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cmd->arg1 = i;
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av++;
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}
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}
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break;
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case TOK_FLOW:
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NEED1("missing table name");
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@ -177,6 +177,8 @@ enum tokens {
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TOK_SRCIP,
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TOK_DSTPORT,
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TOK_SRCPORT,
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TOK_DSTMAC,
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TOK_SRCMAC,
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TOK_ALL,
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TOK_MASK,
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TOK_FLOW_MASK,
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@ -31,6 +31,7 @@
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#include <string.h>
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#include <sysexits.h>
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#include <net/ethernet.h>
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#include <net/if.h>
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#include <netinet/in.h>
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#include <netinet/ip_fw.h>
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@ -77,6 +78,7 @@ static int tables_foreach(table_cb_t *f, void *arg, int sort);
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static struct _s_x tabletypes[] = {
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{ "addr", IPFW_TABLE_ADDR },
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{ "mac", IPFW_TABLE_MAC },
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{ "iface", IPFW_TABLE_INTERFACE },
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{ "number", IPFW_TABLE_NUMBER },
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{ "flow", IPFW_TABLE_FLOW },
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@ -1188,6 +1190,7 @@ tentry_fill_key_type(char *arg, ipfw_obj_tentry *tentry, uint8_t type,
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char *p, *pp;
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int mask, af;
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struct in6_addr *paddr, tmp;
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struct ether_addr *mac;
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struct tflow_entry *tfe;
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uint32_t key, *pkey;
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uint16_t port;
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@ -1234,6 +1237,24 @@ tentry_fill_key_type(char *arg, ipfw_obj_tentry *tentry, uint8_t type,
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af = AF_INET;
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}
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break;
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case IPFW_TABLE_MAC:
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/* Remove / if exists */
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if ((p = strchr(arg, '/')) != NULL) {
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*p = '\0';
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mask = atoi(p + 1);
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}
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if (p != NULL && mask > 8 * ETHER_ADDR_LEN)
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errx(EX_DATAERR, "bad MAC mask width: %s",
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p + 1);
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if ((mac = ether_aton(arg)) == NULL)
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errx(EX_DATAERR, "Incorrect MAC address");
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memcpy(tentry->k.mac, mac->octet, ETHER_ADDR_LEN);
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masklen = p ? mask : 8 * ETHER_ADDR_LEN;
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af = AF_LINK;
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break;
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case IPFW_TABLE_INTERFACE:
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/* Assume interface name. Copy significant data only */
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mask = MIN(strlen(arg), IF_NAMESIZE - 1);
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@ -1872,6 +1893,7 @@ table_show_entry(ipfw_xtable_info *i, ipfw_obj_tentry *tent)
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{
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char tbuf[128], pval[128];
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const char *comma;
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const u_char *mac;
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void *paddr;
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struct tflow_entry *tfe;
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@ -1884,6 +1906,13 @@ table_show_entry(ipfw_xtable_info *i, ipfw_obj_tentry *tent)
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inet_ntop(tent->subtype, &tent->k, tbuf, sizeof(tbuf));
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printf("%s/%u %s\n", tbuf, tent->masklen, pval);
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break;
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case IPFW_TABLE_MAC:
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/* MAC prefixes */
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mac = tent->k.mac;
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printf("%02x:%02x:%02x:%02x:%02x:%02x/%u %s\n",
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mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
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tent->masklen, pval);
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break;
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case IPFW_TABLE_INTERFACE:
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/* Interface names */
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printf("%s %s\n", tent->k.iface, pval);
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@ -295,9 +295,27 @@ enum ipfw_opcodes { /* arguments (4 byte each) */
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O_SKIP_ACTION, /* none */
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O_TCPMSS, /* arg1=MSS value */
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O_MAC_SRC_LOOKUP, /* arg1=table number, u32=value */
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O_MAC_DST_LOOKUP, /* arg1=table number, u32=value */
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|
||||
O_LAST_OPCODE /* not an opcode! */
|
||||
};
|
||||
|
||||
/*
|
||||
* Defines key types used by lookup instruction
|
||||
*/
|
||||
enum ipfw_table_lookup_type {
|
||||
LOOKUP_DST_IP,
|
||||
LOOKUP_SRC_IP,
|
||||
LOOKUP_DST_PORT,
|
||||
LOOKUP_SRC_PORT,
|
||||
LOOKUP_UID,
|
||||
LOOKUP_JAIL,
|
||||
LOOKUP_DSCP,
|
||||
LOOKUP_DST_MAC,
|
||||
LOOKUP_SRC_MAC,
|
||||
};
|
||||
|
||||
/*
|
||||
* The extension header are filtered only for presence using a bit
|
||||
* vector with a flag for each header.
|
||||
@ -754,7 +772,8 @@ struct _ipfw_dyn_rule {
|
||||
#define IPFW_TABLE_INTERFACE 2 /* Table for holding interface names */
|
||||
#define IPFW_TABLE_NUMBER 3 /* Table for holding ports/uid/gid/etc */
|
||||
#define IPFW_TABLE_FLOW 4 /* Table for holding flow data */
|
||||
#define IPFW_TABLE_MAXTYPE 4 /* Maximum valid number */
|
||||
#define IPFW_TABLE_MAC 5 /* Table for holding mac address prefixes */
|
||||
#define IPFW_TABLE_MAXTYPE 5 /* Maximum valid number */
|
||||
|
||||
#define IPFW_TABLE_CIDR IPFW_TABLE_ADDR /* compat */
|
||||
|
||||
@ -772,6 +791,9 @@ struct _ipfw_dyn_rule {
|
||||
#define IPFW_VTYPE_NH4 0x00000200 /* IPv4 nexthop */
|
||||
#define IPFW_VTYPE_NH6 0x00000400 /* IPv6 nexthop */
|
||||
|
||||
/* MAC/InfiniBand/etc address length */
|
||||
#define IPFW_MAX_L2_ADDR_LEN 20
|
||||
|
||||
typedef struct _ipfw_table_entry {
|
||||
in_addr_t addr; /* network address */
|
||||
u_int32_t value; /* value */
|
||||
@ -895,10 +917,11 @@ typedef struct _ipfw_obj_tentry {
|
||||
uint16_t spare1;
|
||||
union {
|
||||
/* Longest field needs to be aligned by 8-byte boundary */
|
||||
struct in_addr addr; /* IPv4 address */
|
||||
uint32_t key; /* uid/gid/port */
|
||||
struct in6_addr addr6; /* IPv6 address */
|
||||
char iface[IF_NAMESIZE]; /* interface name */
|
||||
struct in_addr addr; /* IPv4 address */
|
||||
uint32_t key; /* uid/gid/port */
|
||||
struct in6_addr addr6; /* IPv6 address */
|
||||
char iface[IF_NAMESIZE]; /* interface name */
|
||||
u_char mac[IPFW_MAX_L2_ADDR_LEN]; /* MAC address */
|
||||
struct tflow_entry flow;
|
||||
} k;
|
||||
union {
|
||||
|
||||
@ -2038,78 +2038,87 @@ do { \
|
||||
|
||||
case O_IP_DST_LOOKUP:
|
||||
{
|
||||
void *pkey;
|
||||
uint32_t vidx, key;
|
||||
uint16_t keylen;
|
||||
|
||||
if (cmdlen > F_INSN_SIZE(ipfw_insn_u32)) {
|
||||
void *pkey;
|
||||
uint32_t vidx, key;
|
||||
uint16_t keylen = 0; /* zero if can't match the packet */
|
||||
|
||||
/* Determine lookup key type */
|
||||
vidx = ((ipfw_insn_u32 *)cmd)->d[1];
|
||||
if (vidx != 4 /* uid */ &&
|
||||
vidx != 5 /* jail */ &&
|
||||
is_ipv6 == 0 && is_ipv4 == 0)
|
||||
break;
|
||||
/* Determine key length */
|
||||
if (vidx == 0 /* dst-ip */ ||
|
||||
vidx == 1 /* src-ip */)
|
||||
keylen = is_ipv6 ?
|
||||
sizeof(struct in6_addr):
|
||||
sizeof(in_addr_t);
|
||||
else {
|
||||
keylen = sizeof(key);
|
||||
pkey = &key;
|
||||
}
|
||||
if (vidx == 0 /* dst-ip */)
|
||||
pkey = is_ipv4 ? (void *)&dst_ip:
|
||||
(void *)&args->f_id.dst_ip6;
|
||||
else if (vidx == 1 /* src-ip */)
|
||||
pkey = is_ipv4 ? (void *)&src_ip:
|
||||
(void *)&args->f_id.src_ip6;
|
||||
else if (vidx == 6 /* dscp */) {
|
||||
if (is_ipv4)
|
||||
key = ip->ip_tos >> 2;
|
||||
switch (vidx) {
|
||||
case LOOKUP_DST_IP:
|
||||
case LOOKUP_SRC_IP:
|
||||
/* Need IP frame */
|
||||
if (is_ipv6 == 0 && is_ipv4 == 0)
|
||||
break;
|
||||
if (vidx == LOOKUP_DST_IP)
|
||||
pkey = is_ipv6 ?
|
||||
(void *)&args->f_id.dst_ip6:
|
||||
(void *)&dst_ip;
|
||||
else
|
||||
key = IPV6_DSCP(
|
||||
(struct ip6_hdr *)ip) >> 2;
|
||||
key &= 0x3f;
|
||||
} else if (vidx == 2 /* dst-port */ ||
|
||||
vidx == 3 /* src-port */) {
|
||||
pkey = is_ipv6 ?
|
||||
(void *)&args->f_id.src_ip6:
|
||||
(void *)&src_ip;
|
||||
keylen = is_ipv6 ?
|
||||
sizeof(struct in6_addr):
|
||||
sizeof(in_addr_t);
|
||||
break;
|
||||
case LOOKUP_DST_PORT:
|
||||
case LOOKUP_SRC_PORT:
|
||||
/* Need IP frame */
|
||||
if (is_ipv6 == 0 && is_ipv4 == 0)
|
||||
break;
|
||||
/* Skip fragments */
|
||||
if (offset != 0)
|
||||
break;
|
||||
/* Skip proto without ports */
|
||||
if (proto != IPPROTO_TCP &&
|
||||
proto != IPPROTO_UDP &&
|
||||
proto != IPPROTO_UDPLITE &&
|
||||
proto != IPPROTO_SCTP)
|
||||
proto != IPPROTO_UDP &&
|
||||
proto != IPPROTO_UDPLITE &&
|
||||
proto != IPPROTO_SCTP)
|
||||
break;
|
||||
if (vidx == 2 /* dst-port */)
|
||||
key = dst_port;
|
||||
else
|
||||
key = src_port;
|
||||
}
|
||||
#ifndef USERSPACE
|
||||
else if (vidx == 4 /* uid */ ||
|
||||
vidx == 5 /* jail */) {
|
||||
key = vidx == LOOKUP_DST_PORT ?
|
||||
dst_port:
|
||||
src_port;
|
||||
pkey = &key;
|
||||
keylen = sizeof(key);
|
||||
break;
|
||||
case LOOKUP_UID:
|
||||
case LOOKUP_JAIL:
|
||||
check_uidgid(
|
||||
(ipfw_insn_u32 *)cmd,
|
||||
args, &ucred_lookup,
|
||||
#ifdef __FreeBSD__
|
||||
&ucred_cache);
|
||||
if (vidx == 4 /* uid */)
|
||||
key = ucred_cache->cr_uid;
|
||||
else if (vidx == 5 /* jail */)
|
||||
key = ucred_cache->cr_prison->pr_id;
|
||||
#else /* !__FreeBSD__ */
|
||||
(void *)&ucred_cache);
|
||||
if (vidx == 4 /* uid */)
|
||||
key = ucred_cache.uid;
|
||||
else if (vidx == 5 /* jail */)
|
||||
key = ucred_cache.xid;
|
||||
#endif /* !__FreeBSD__ */
|
||||
key = vidx == LOOKUP_UID ?
|
||||
ucred_cache->cr_uid:
|
||||
ucred_cache->cr_prison->pr_id;
|
||||
pkey = &key;
|
||||
keylen = sizeof(key);
|
||||
break;
|
||||
case LOOKUP_DSCP:
|
||||
/* Need IP frame */
|
||||
if (is_ipv6 == 0 && is_ipv4 == 0)
|
||||
break;
|
||||
if (is_ipv6)
|
||||
key = IPV6_DSCP(
|
||||
(struct ip6_hdr *)ip) >> 2;
|
||||
else
|
||||
key = ip->ip_tos >> 2;
|
||||
pkey = &key;
|
||||
keylen = sizeof(key);
|
||||
break;
|
||||
case LOOKUP_DST_MAC:
|
||||
case LOOKUP_SRC_MAC:
|
||||
/* Need ether frame */
|
||||
if ((args->flags & IPFW_ARGS_ETHER) == 0)
|
||||
break;
|
||||
pkey = vidx == LOOKUP_DST_MAC ?
|
||||
eh->ether_dhost:
|
||||
eh->ether_shost;
|
||||
keylen = ETHER_ADDR_LEN;
|
||||
break;
|
||||
}
|
||||
#endif /* !USERSPACE */
|
||||
else
|
||||
if (keylen == 0)
|
||||
break;
|
||||
match = ipfw_lookup_table(chain,
|
||||
cmd->arg1, keylen, pkey, &vidx);
|
||||
@ -2155,6 +2164,36 @@ do { \
|
||||
break;
|
||||
}
|
||||
|
||||
case O_MAC_SRC_LOOKUP:
|
||||
case O_MAC_DST_LOOKUP:
|
||||
{
|
||||
void *pkey;
|
||||
uint32_t vidx;
|
||||
uint16_t keylen = ETHER_ADDR_LEN;
|
||||
|
||||
/* Need ether frame */
|
||||
if ((args->flags & IPFW_ARGS_ETHER) == 0)
|
||||
break;
|
||||
|
||||
if (cmd->opcode == O_MAC_DST_LOOKUP)
|
||||
pkey = eh->ether_dhost;
|
||||
else
|
||||
pkey = eh->ether_shost;
|
||||
|
||||
match = ipfw_lookup_table(chain, cmd->arg1,
|
||||
keylen, pkey, &vidx);
|
||||
if (!match)
|
||||
break;
|
||||
if (cmdlen == F_INSN_SIZE(ipfw_insn_u32)) {
|
||||
match = ((ipfw_insn_u32 *)cmd)->d[0] ==
|
||||
TARG_VAL(chain, vidx, tag);
|
||||
if (!match)
|
||||
break;
|
||||
}
|
||||
tablearg = vidx;
|
||||
break;
|
||||
}
|
||||
|
||||
case O_IP_FLOW_LOOKUP:
|
||||
{
|
||||
uint32_t v = 0;
|
||||
|
||||
@ -1909,6 +1909,8 @@ check_ipfw_rule_body(ipfw_insn *cmd, int cmd_len, struct rule_check_info *ci)
|
||||
ci->object_opcodes++;
|
||||
break;
|
||||
case O_IP_FLOW_LOOKUP:
|
||||
case O_MAC_DST_LOOKUP:
|
||||
case O_MAC_SRC_LOOKUP:
|
||||
if (cmd->arg1 >= V_fw_tables_max) {
|
||||
printf("ipfw: invalid table number %d\n",
|
||||
cmd->arg1);
|
||||
|
||||
@ -2752,26 +2752,19 @@ classify_srcdst(ipfw_insn *cmd, uint16_t *puidx, uint8_t *ptype)
|
||||
*/
|
||||
v = ((ipfw_insn_u32 *)cmd)->d[1];
|
||||
switch (v) {
|
||||
case 0:
|
||||
case 1:
|
||||
/* IPv4 src/dst */
|
||||
case LOOKUP_DST_IP:
|
||||
case LOOKUP_SRC_IP:
|
||||
break;
|
||||
case 2:
|
||||
case 3:
|
||||
/* src/dst port */
|
||||
case LOOKUP_DST_PORT:
|
||||
case LOOKUP_SRC_PORT:
|
||||
case LOOKUP_UID:
|
||||
case LOOKUP_JAIL:
|
||||
case LOOKUP_DSCP:
|
||||
*ptype = IPFW_TABLE_NUMBER;
|
||||
break;
|
||||
case 4:
|
||||
/* uid/gid */
|
||||
*ptype = IPFW_TABLE_NUMBER;
|
||||
break;
|
||||
case 5:
|
||||
/* jid */
|
||||
*ptype = IPFW_TABLE_NUMBER;
|
||||
break;
|
||||
case 6:
|
||||
/* dscp */
|
||||
*ptype = IPFW_TABLE_NUMBER;
|
||||
case LOOKUP_DST_MAC:
|
||||
case LOOKUP_SRC_MAC:
|
||||
*ptype = IPFW_TABLE_MAC;
|
||||
break;
|
||||
}
|
||||
}
|
||||
@ -2805,6 +2798,14 @@ classify_flow(ipfw_insn *cmd, uint16_t *puidx, uint8_t *ptype)
|
||||
return (0);
|
||||
}
|
||||
|
||||
static int
|
||||
classify_mac_lookup(ipfw_insn *cmd, uint16_t *puidx, uint8_t *ptype)
|
||||
{
|
||||
*puidx = cmd->arg1;
|
||||
*ptype = IPFW_TABLE_MAC;
|
||||
return (0);
|
||||
}
|
||||
|
||||
static void
|
||||
update_arg1(ipfw_insn *cmd, uint16_t idx)
|
||||
{
|
||||
@ -2955,6 +2956,26 @@ static struct opcode_obj_rewrite opcodes[] = {
|
||||
.create_object = create_table_compat,
|
||||
.manage_sets = table_manage_sets,
|
||||
},
|
||||
{
|
||||
.opcode = O_MAC_SRC_LOOKUP,
|
||||
.etlv = IPFW_TLV_TBL_NAME,
|
||||
.classifier = classify_mac_lookup,
|
||||
.update = update_arg1,
|
||||
.find_byname = table_findbyname,
|
||||
.find_bykidx = table_findbykidx,
|
||||
.create_object = create_table_compat,
|
||||
.manage_sets = table_manage_sets,
|
||||
},
|
||||
{
|
||||
.opcode = O_MAC_DST_LOOKUP,
|
||||
.etlv = IPFW_TLV_TBL_NAME,
|
||||
.classifier = classify_mac_lookup,
|
||||
.update = update_arg1,
|
||||
.find_byname = table_findbyname,
|
||||
.find_bykidx = table_findbykidx,
|
||||
.create_object = create_table_compat,
|
||||
.manage_sets = table_manage_sets,
|
||||
},
|
||||
{
|
||||
.opcode = O_XMIT,
|
||||
.etlv = IPFW_TLV_TBL_NAME,
|
||||
|
||||
@ -48,6 +48,7 @@ __FBSDID("$FreeBSD$");
|
||||
#include <sys/rmlock.h>
|
||||
#include <sys/socket.h>
|
||||
#include <sys/queue.h>
|
||||
#include <net/ethernet.h>
|
||||
#include <net/if.h> /* ip_fw.h requires IFNAMSIZ */
|
||||
#include <net/radix.h>
|
||||
#include <net/route.h>
|
||||
@ -315,15 +316,17 @@ static int bdel(const void *key, void *base, size_t nmemb, size_t size,
|
||||
*/
|
||||
#define KEY_LEN(v) *((uint8_t *)&(v))
|
||||
/*
|
||||
* Do not require radix to compare more than actual IPv4/IPv6 address
|
||||
* Do not require radix to compare more than actual IPv4/IPv6/MAC address
|
||||
*/
|
||||
#define KEY_LEN_INET (offsetof(struct sockaddr_in, sin_addr) + sizeof(in_addr_t))
|
||||
#define KEY_LEN_INET6 (offsetof(struct sa_in6, sin6_addr) + sizeof(struct in6_addr))
|
||||
#define KEY_LEN_MAC (offsetof(struct sa_mac, mac_addr) + ETHER_ADDR_LEN)
|
||||
|
||||
#define OFF_LEN_INET (8 * offsetof(struct sockaddr_in, sin_addr))
|
||||
#define OFF_LEN_INET6 (8 * offsetof(struct sa_in6, sin6_addr))
|
||||
#define OFF_LEN_MAC (8 * offsetof(struct sa_mac, mac_addr))
|
||||
|
||||
struct radix_addr_entry {
|
||||
struct addr_radix_entry {
|
||||
struct radix_node rn[2];
|
||||
struct sockaddr_in addr;
|
||||
uint32_t value;
|
||||
@ -337,20 +340,25 @@ struct sa_in6 {
|
||||
struct in6_addr sin6_addr;
|
||||
};
|
||||
|
||||
struct radix_addr_xentry {
|
||||
struct addr_radix_xentry {
|
||||
struct radix_node rn[2];
|
||||
struct sa_in6 addr6;
|
||||
uint32_t value;
|
||||
uint8_t masklen;
|
||||
};
|
||||
|
||||
struct radix_cfg {
|
||||
struct addr_radix_cfg {
|
||||
struct radix_node_head *head4;
|
||||
struct radix_node_head *head6;
|
||||
size_t count4;
|
||||
size_t count6;
|
||||
};
|
||||
|
||||
struct sa_mac {
|
||||
uint8_t mac_len;
|
||||
struct ether_addr mac_addr;
|
||||
};
|
||||
|
||||
struct ta_buf_radix
|
||||
{
|
||||
void *ent_ptr;
|
||||
@ -365,32 +373,36 @@ struct ta_buf_radix
|
||||
struct sa_in6 sa;
|
||||
struct sa_in6 ma;
|
||||
} a6;
|
||||
struct {
|
||||
struct sa_mac sa;
|
||||
struct sa_mac ma;
|
||||
} mac;
|
||||
} addr;
|
||||
};
|
||||
|
||||
static int ta_lookup_radix(struct table_info *ti, void *key, uint32_t keylen,
|
||||
static int ta_lookup_addr_radix(struct table_info *ti, void *key, uint32_t keylen,
|
||||
uint32_t *val);
|
||||
static int ta_init_radix(struct ip_fw_chain *ch, void **ta_state,
|
||||
static int ta_init_addr_radix(struct ip_fw_chain *ch, void **ta_state,
|
||||
struct table_info *ti, char *data, uint8_t tflags);
|
||||
static int flush_radix_entry(struct radix_node *rn, void *arg);
|
||||
static void ta_destroy_radix(void *ta_state, struct table_info *ti);
|
||||
static void ta_dump_radix_tinfo(void *ta_state, struct table_info *ti,
|
||||
static void ta_destroy_addr_radix(void *ta_state, struct table_info *ti);
|
||||
static void ta_dump_addr_radix_tinfo(void *ta_state, struct table_info *ti,
|
||||
ipfw_ta_tinfo *tinfo);
|
||||
static int ta_dump_radix_tentry(void *ta_state, struct table_info *ti,
|
||||
static int ta_dump_addr_radix_tentry(void *ta_state, struct table_info *ti,
|
||||
void *e, ipfw_obj_tentry *tent);
|
||||
static int ta_find_radix_tentry(void *ta_state, struct table_info *ti,
|
||||
static int ta_find_addr_radix_tentry(void *ta_state, struct table_info *ti,
|
||||
ipfw_obj_tentry *tent);
|
||||
static void ta_foreach_radix(void *ta_state, struct table_info *ti,
|
||||
static void ta_foreach_addr_radix(void *ta_state, struct table_info *ti,
|
||||
ta_foreach_f *f, void *arg);
|
||||
static void tei_to_sockaddr_ent(struct tentry_info *tei, struct sockaddr *sa,
|
||||
static void tei_to_sockaddr_ent_addr(struct tentry_info *tei, struct sockaddr *sa,
|
||||
struct sockaddr *ma, int *set_mask);
|
||||
static int ta_prepare_add_radix(struct ip_fw_chain *ch, struct tentry_info *tei,
|
||||
static int ta_prepare_add_addr_radix(struct ip_fw_chain *ch, struct tentry_info *tei,
|
||||
void *ta_buf);
|
||||
static int ta_add_radix(void *ta_state, struct table_info *ti,
|
||||
static int ta_add_addr_radix(void *ta_state, struct table_info *ti,
|
||||
struct tentry_info *tei, void *ta_buf, uint32_t *pnum);
|
||||
static int ta_prepare_del_radix(struct ip_fw_chain *ch, struct tentry_info *tei,
|
||||
static int ta_prepare_del_addr_radix(struct ip_fw_chain *ch, struct tentry_info *tei,
|
||||
void *ta_buf);
|
||||
static int ta_del_radix(void *ta_state, struct table_info *ti,
|
||||
static int ta_del_addr_radix(void *ta_state, struct table_info *ti,
|
||||
struct tentry_info *tei, void *ta_buf, uint32_t *pnum);
|
||||
static void ta_flush_radix_entry(struct ip_fw_chain *ch, struct tentry_info *tei,
|
||||
void *ta_buf);
|
||||
@ -398,29 +410,29 @@ static int ta_need_modify_radix(void *ta_state, struct table_info *ti,
|
||||
uint32_t count, uint64_t *pflags);
|
||||
|
||||
static int
|
||||
ta_lookup_radix(struct table_info *ti, void *key, uint32_t keylen,
|
||||
ta_lookup_addr_radix(struct table_info *ti, void *key, uint32_t keylen,
|
||||
uint32_t *val)
|
||||
{
|
||||
struct radix_node_head *rnh;
|
||||
|
||||
if (keylen == sizeof(in_addr_t)) {
|
||||
struct radix_addr_entry *ent;
|
||||
struct addr_radix_entry *ent;
|
||||
struct sockaddr_in sa;
|
||||
KEY_LEN(sa) = KEY_LEN_INET;
|
||||
sa.sin_addr.s_addr = *((in_addr_t *)key);
|
||||
rnh = (struct radix_node_head *)ti->state;
|
||||
ent = (struct radix_addr_entry *)(rnh->rnh_matchaddr(&sa, &rnh->rh));
|
||||
ent = (struct addr_radix_entry *)(rnh->rnh_matchaddr(&sa, &rnh->rh));
|
||||
if (ent != NULL) {
|
||||
*val = ent->value;
|
||||
return (1);
|
||||
}
|
||||
} else {
|
||||
struct radix_addr_xentry *xent;
|
||||
} else if (keylen == sizeof(struct in6_addr)) {
|
||||
struct addr_radix_xentry *xent;
|
||||
struct sa_in6 sa6;
|
||||
KEY_LEN(sa6) = KEY_LEN_INET6;
|
||||
memcpy(&sa6.sin6_addr, key, sizeof(struct in6_addr));
|
||||
rnh = (struct radix_node_head *)ti->xstate;
|
||||
xent = (struct radix_addr_xentry *)(rnh->rnh_matchaddr(&sa6, &rnh->rh));
|
||||
xent = (struct addr_radix_xentry *)(rnh->rnh_matchaddr(&sa6, &rnh->rh));
|
||||
if (xent != NULL) {
|
||||
*val = xent->value;
|
||||
return (1);
|
||||
@ -434,10 +446,10 @@ ta_lookup_radix(struct table_info *ti, void *key, uint32_t keylen,
|
||||
* New table
|
||||
*/
|
||||
static int
|
||||
ta_init_radix(struct ip_fw_chain *ch, void **ta_state, struct table_info *ti,
|
||||
ta_init_addr_radix(struct ip_fw_chain *ch, void **ta_state, struct table_info *ti,
|
||||
char *data, uint8_t tflags)
|
||||
{
|
||||
struct radix_cfg *cfg;
|
||||
struct addr_radix_cfg *cfg;
|
||||
|
||||
if (!rn_inithead(&ti->state, OFF_LEN_INET))
|
||||
return (ENOMEM);
|
||||
@ -446,10 +458,10 @@ ta_init_radix(struct ip_fw_chain *ch, void **ta_state, struct table_info *ti,
|
||||
return (ENOMEM);
|
||||
}
|
||||
|
||||
cfg = malloc(sizeof(struct radix_cfg), M_IPFW, M_WAITOK | M_ZERO);
|
||||
cfg = malloc(sizeof(struct addr_radix_cfg), M_IPFW, M_WAITOK | M_ZERO);
|
||||
|
||||
*ta_state = cfg;
|
||||
ti->lookup = ta_lookup_radix;
|
||||
ti->lookup = ta_lookup_addr_radix;
|
||||
|
||||
return (0);
|
||||
}
|
||||
@ -458,9 +470,9 @@ static int
|
||||
flush_radix_entry(struct radix_node *rn, void *arg)
|
||||
{
|
||||
struct radix_node_head * const rnh = arg;
|
||||
struct radix_addr_entry *ent;
|
||||
struct addr_radix_entry *ent;
|
||||
|
||||
ent = (struct radix_addr_entry *)
|
||||
ent = (struct addr_radix_entry *)
|
||||
rnh->rnh_deladdr(rn->rn_key, rn->rn_mask, &rnh->rh);
|
||||
if (ent != NULL)
|
||||
free(ent, M_IPFW_TBL);
|
||||
@ -468,12 +480,12 @@ flush_radix_entry(struct radix_node *rn, void *arg)
|
||||
}
|
||||
|
||||
static void
|
||||
ta_destroy_radix(void *ta_state, struct table_info *ti)
|
||||
ta_destroy_addr_radix(void *ta_state, struct table_info *ti)
|
||||
{
|
||||
struct radix_cfg *cfg;
|
||||
struct addr_radix_cfg *cfg;
|
||||
struct radix_node_head *rnh;
|
||||
|
||||
cfg = (struct radix_cfg *)ta_state;
|
||||
cfg = (struct addr_radix_cfg *)ta_state;
|
||||
|
||||
rnh = (struct radix_node_head *)(ti->state);
|
||||
rnh->rnh_walktree(&rnh->rh, flush_radix_entry, rnh);
|
||||
@ -490,31 +502,31 @@ ta_destroy_radix(void *ta_state, struct table_info *ti)
|
||||
* Provide algo-specific table info
|
||||
*/
|
||||
static void
|
||||
ta_dump_radix_tinfo(void *ta_state, struct table_info *ti, ipfw_ta_tinfo *tinfo)
|
||||
ta_dump_addr_radix_tinfo(void *ta_state, struct table_info *ti, ipfw_ta_tinfo *tinfo)
|
||||
{
|
||||
struct radix_cfg *cfg;
|
||||
struct addr_radix_cfg *cfg;
|
||||
|
||||
cfg = (struct radix_cfg *)ta_state;
|
||||
cfg = (struct addr_radix_cfg *)ta_state;
|
||||
|
||||
tinfo->flags = IPFW_TATFLAGS_AFDATA | IPFW_TATFLAGS_AFITEM;
|
||||
tinfo->taclass4 = IPFW_TACLASS_RADIX;
|
||||
tinfo->count4 = cfg->count4;
|
||||
tinfo->itemsize4 = sizeof(struct radix_addr_entry);
|
||||
tinfo->itemsize4 = sizeof(struct addr_radix_entry);
|
||||
tinfo->taclass6 = IPFW_TACLASS_RADIX;
|
||||
tinfo->count6 = cfg->count6;
|
||||
tinfo->itemsize6 = sizeof(struct radix_addr_xentry);
|
||||
tinfo->itemsize6 = sizeof(struct addr_radix_xentry);
|
||||
}
|
||||
|
||||
static int
|
||||
ta_dump_radix_tentry(void *ta_state, struct table_info *ti, void *e,
|
||||
ta_dump_addr_radix_tentry(void *ta_state, struct table_info *ti, void *e,
|
||||
ipfw_obj_tentry *tent)
|
||||
{
|
||||
struct radix_addr_entry *n;
|
||||
struct addr_radix_entry *n;
|
||||
#ifdef INET6
|
||||
struct radix_addr_xentry *xn;
|
||||
struct addr_radix_xentry *xn;
|
||||
#endif
|
||||
|
||||
n = (struct radix_addr_entry *)e;
|
||||
n = (struct addr_radix_entry *)e;
|
||||
|
||||
/* Guess IPv4/IPv6 radix by sockaddr family */
|
||||
if (n->addr.sin_family == AF_INET) {
|
||||
@ -524,7 +536,7 @@ ta_dump_radix_tentry(void *ta_state, struct table_info *ti, void *e,
|
||||
tent->v.kidx = n->value;
|
||||
#ifdef INET6
|
||||
} else {
|
||||
xn = (struct radix_addr_xentry *)e;
|
||||
xn = (struct addr_radix_xentry *)e;
|
||||
memcpy(&tent->k.addr6, &xn->addr6.sin6_addr,
|
||||
sizeof(struct in6_addr));
|
||||
tent->masklen = xn->masklen;
|
||||
@ -537,7 +549,7 @@ ta_dump_radix_tentry(void *ta_state, struct table_info *ti, void *e,
|
||||
}
|
||||
|
||||
static int
|
||||
ta_find_radix_tentry(void *ta_state, struct table_info *ti,
|
||||
ta_find_addr_radix_tentry(void *ta_state, struct table_info *ti,
|
||||
ipfw_obj_tentry *tent)
|
||||
{
|
||||
struct radix_node_head *rnh;
|
||||
@ -550,7 +562,7 @@ ta_find_radix_tentry(void *ta_state, struct table_info *ti,
|
||||
sa.sin_addr.s_addr = tent->k.addr.s_addr;
|
||||
rnh = (struct radix_node_head *)ti->state;
|
||||
e = rnh->rnh_matchaddr(&sa, &rnh->rh);
|
||||
} else {
|
||||
} else if (tent->subtype == AF_INET6) {
|
||||
struct sa_in6 sa6;
|
||||
KEY_LEN(sa6) = KEY_LEN_INET6;
|
||||
memcpy(&sa6.sin6_addr, &tent->k.addr6, sizeof(struct in6_addr));
|
||||
@ -559,7 +571,7 @@ ta_find_radix_tentry(void *ta_state, struct table_info *ti,
|
||||
}
|
||||
|
||||
if (e != NULL) {
|
||||
ta_dump_radix_tentry(ta_state, ti, e, tent);
|
||||
ta_dump_addr_radix_tentry(ta_state, ti, e, tent);
|
||||
return (0);
|
||||
}
|
||||
|
||||
@ -567,7 +579,7 @@ ta_find_radix_tentry(void *ta_state, struct table_info *ti,
|
||||
}
|
||||
|
||||
static void
|
||||
ta_foreach_radix(void *ta_state, struct table_info *ti, ta_foreach_f *f,
|
||||
ta_foreach_addr_radix(void *ta_state, struct table_info *ti, ta_foreach_f *f,
|
||||
void *arg)
|
||||
{
|
||||
struct radix_node_head *rnh;
|
||||
@ -595,7 +607,7 @@ ipv6_writemask(struct in6_addr *addr6, uint8_t mask)
|
||||
#endif
|
||||
|
||||
static void
|
||||
tei_to_sockaddr_ent(struct tentry_info *tei, struct sockaddr *sa,
|
||||
tei_to_sockaddr_ent_addr(struct tentry_info *tei, struct sockaddr *sa,
|
||||
struct sockaddr *ma, int *set_mask)
|
||||
{
|
||||
int mlen;
|
||||
@ -647,13 +659,13 @@ tei_to_sockaddr_ent(struct tentry_info *tei, struct sockaddr *sa,
|
||||
}
|
||||
|
||||
static int
|
||||
ta_prepare_add_radix(struct ip_fw_chain *ch, struct tentry_info *tei,
|
||||
ta_prepare_add_addr_radix(struct ip_fw_chain *ch, struct tentry_info *tei,
|
||||
void *ta_buf)
|
||||
{
|
||||
struct ta_buf_radix *tb;
|
||||
struct radix_addr_entry *ent;
|
||||
struct addr_radix_entry *ent;
|
||||
#ifdef INET6
|
||||
struct radix_addr_xentry *xent;
|
||||
struct addr_radix_xentry *xent;
|
||||
#endif
|
||||
struct sockaddr *addr, *mask;
|
||||
int mlen, set_mask;
|
||||
@ -691,7 +703,7 @@ ta_prepare_add_radix(struct ip_fw_chain *ch, struct tentry_info *tei,
|
||||
return (EINVAL);
|
||||
}
|
||||
|
||||
tei_to_sockaddr_ent(tei, addr, mask, &set_mask);
|
||||
tei_to_sockaddr_ent_addr(tei, addr, mask, &set_mask);
|
||||
/* Set pointers */
|
||||
tb->addr_ptr = addr;
|
||||
if (set_mask != 0)
|
||||
@ -701,25 +713,25 @@ ta_prepare_add_radix(struct ip_fw_chain *ch, struct tentry_info *tei,
|
||||
}
|
||||
|
||||
static int
|
||||
ta_add_radix(void *ta_state, struct table_info *ti, struct tentry_info *tei,
|
||||
ta_add_addr_radix(void *ta_state, struct table_info *ti, struct tentry_info *tei,
|
||||
void *ta_buf, uint32_t *pnum)
|
||||
{
|
||||
struct radix_cfg *cfg;
|
||||
struct addr_radix_cfg *cfg;
|
||||
struct radix_node_head *rnh;
|
||||
struct radix_node *rn;
|
||||
struct ta_buf_radix *tb;
|
||||
uint32_t *old_value, value;
|
||||
|
||||
cfg = (struct radix_cfg *)ta_state;
|
||||
cfg = (struct addr_radix_cfg *)ta_state;
|
||||
tb = (struct ta_buf_radix *)ta_buf;
|
||||
|
||||
/* Save current entry value from @tei */
|
||||
if (tei->subtype == AF_INET) {
|
||||
rnh = ti->state;
|
||||
((struct radix_addr_entry *)tb->ent_ptr)->value = tei->value;
|
||||
((struct addr_radix_entry *)tb->ent_ptr)->value = tei->value;
|
||||
} else {
|
||||
rnh = ti->xstate;
|
||||
((struct radix_addr_xentry *)tb->ent_ptr)->value = tei->value;
|
||||
((struct addr_radix_xentry *)tb->ent_ptr)->value = tei->value;
|
||||
}
|
||||
|
||||
/* Search for an entry first */
|
||||
@ -729,9 +741,9 @@ ta_add_radix(void *ta_state, struct table_info *ti, struct tentry_info *tei,
|
||||
return (EEXIST);
|
||||
/* Record already exists. Update value if we're asked to */
|
||||
if (tei->subtype == AF_INET)
|
||||
old_value = &((struct radix_addr_entry *)rn)->value;
|
||||
old_value = &((struct addr_radix_entry *)rn)->value;
|
||||
else
|
||||
old_value = &((struct radix_addr_xentry *)rn)->value;
|
||||
old_value = &((struct addr_radix_xentry *)rn)->value;
|
||||
|
||||
value = *old_value;
|
||||
*old_value = tei->value;
|
||||
@ -764,7 +776,7 @@ ta_add_radix(void *ta_state, struct table_info *ti, struct tentry_info *tei,
|
||||
}
|
||||
|
||||
static int
|
||||
ta_prepare_del_radix(struct ip_fw_chain *ch, struct tentry_info *tei,
|
||||
ta_prepare_del_addr_radix(struct ip_fw_chain *ch, struct tentry_info *tei,
|
||||
void *ta_buf)
|
||||
{
|
||||
struct ta_buf_radix *tb;
|
||||
@ -793,7 +805,7 @@ ta_prepare_del_radix(struct ip_fw_chain *ch, struct tentry_info *tei,
|
||||
} else
|
||||
return (EINVAL);
|
||||
|
||||
tei_to_sockaddr_ent(tei, addr, mask, &set_mask);
|
||||
tei_to_sockaddr_ent_addr(tei, addr, mask, &set_mask);
|
||||
tb->addr_ptr = addr;
|
||||
if (set_mask != 0)
|
||||
tb->mask_ptr = mask;
|
||||
@ -802,15 +814,15 @@ ta_prepare_del_radix(struct ip_fw_chain *ch, struct tentry_info *tei,
|
||||
}
|
||||
|
||||
static int
|
||||
ta_del_radix(void *ta_state, struct table_info *ti, struct tentry_info *tei,
|
||||
ta_del_addr_radix(void *ta_state, struct table_info *ti, struct tentry_info *tei,
|
||||
void *ta_buf, uint32_t *pnum)
|
||||
{
|
||||
struct radix_cfg *cfg;
|
||||
struct addr_radix_cfg *cfg;
|
||||
struct radix_node_head *rnh;
|
||||
struct radix_node *rn;
|
||||
struct ta_buf_radix *tb;
|
||||
|
||||
cfg = (struct radix_cfg *)ta_state;
|
||||
cfg = (struct addr_radix_cfg *)ta_state;
|
||||
tb = (struct ta_buf_radix *)ta_buf;
|
||||
|
||||
if (tei->subtype == AF_INET)
|
||||
@ -825,9 +837,9 @@ ta_del_radix(void *ta_state, struct table_info *ti, struct tentry_info *tei,
|
||||
|
||||
/* Save entry value to @tei */
|
||||
if (tei->subtype == AF_INET)
|
||||
tei->value = ((struct radix_addr_entry *)rn)->value;
|
||||
tei->value = ((struct addr_radix_entry *)rn)->value;
|
||||
else
|
||||
tei->value = ((struct radix_addr_xentry *)rn)->value;
|
||||
tei->value = ((struct addr_radix_xentry *)rn)->value;
|
||||
|
||||
tb->ent_ptr = rn;
|
||||
|
||||
@ -871,17 +883,17 @@ struct table_algo addr_radix = {
|
||||
.type = IPFW_TABLE_ADDR,
|
||||
.flags = TA_FLAG_DEFAULT,
|
||||
.ta_buf_size = sizeof(struct ta_buf_radix),
|
||||
.init = ta_init_radix,
|
||||
.destroy = ta_destroy_radix,
|
||||
.prepare_add = ta_prepare_add_radix,
|
||||
.prepare_del = ta_prepare_del_radix,
|
||||
.add = ta_add_radix,
|
||||
.del = ta_del_radix,
|
||||
.init = ta_init_addr_radix,
|
||||
.destroy = ta_destroy_addr_radix,
|
||||
.prepare_add = ta_prepare_add_addr_radix,
|
||||
.prepare_del = ta_prepare_del_addr_radix,
|
||||
.add = ta_add_addr_radix,
|
||||
.del = ta_del_addr_radix,
|
||||
.flush_entry = ta_flush_radix_entry,
|
||||
.foreach = ta_foreach_radix,
|
||||
.dump_tentry = ta_dump_radix_tentry,
|
||||
.find_tentry = ta_find_radix_tentry,
|
||||
.dump_tinfo = ta_dump_radix_tinfo,
|
||||
.foreach = ta_foreach_addr_radix,
|
||||
.dump_tentry = ta_dump_addr_radix_tentry,
|
||||
.find_tentry = ta_find_addr_radix_tentry,
|
||||
.dump_tinfo = ta_dump_addr_radix_tinfo,
|
||||
.need_modify = ta_need_modify_radix,
|
||||
};
|
||||
|
||||
@ -4006,6 +4018,328 @@ struct table_algo addr_kfib = {
|
||||
.print_config = ta_print_kfib_config,
|
||||
};
|
||||
|
||||
struct mac_radix_entry {
|
||||
struct radix_node rn[2];
|
||||
uint32_t value;
|
||||
uint8_t masklen;
|
||||
struct sa_mac sa;
|
||||
};
|
||||
|
||||
struct mac_radix_cfg {
|
||||
struct radix_node_head *head;
|
||||
size_t count;
|
||||
};
|
||||
|
||||
static int
|
||||
ta_lookup_mac_radix(struct table_info *ti, void *key, uint32_t keylen,
|
||||
uint32_t *val)
|
||||
{
|
||||
struct radix_node_head *rnh;
|
||||
|
||||
if (keylen == ETHER_ADDR_LEN) {
|
||||
struct mac_radix_entry *ent;
|
||||
struct sa_mac sa;
|
||||
KEY_LEN(sa) = KEY_LEN_MAC;
|
||||
memcpy(sa.mac_addr.octet, key, ETHER_ADDR_LEN);
|
||||
rnh = (struct radix_node_head *)ti->state;
|
||||
ent = (struct mac_radix_entry *)(rnh->rnh_matchaddr(&sa, &rnh->rh));
|
||||
if (ent != NULL) {
|
||||
*val = ent->value;
|
||||
return (1);
|
||||
}
|
||||
}
|
||||
return (0);
|
||||
}
|
||||
|
||||
static int
|
||||
ta_init_mac_radix(struct ip_fw_chain *ch, void **ta_state, struct table_info *ti,
|
||||
char *data, uint8_t tflags)
|
||||
{
|
||||
struct mac_radix_cfg *cfg;
|
||||
|
||||
if (!rn_inithead(&ti->state, OFF_LEN_MAC))
|
||||
return (ENOMEM);
|
||||
|
||||
cfg = malloc(sizeof(struct mac_radix_cfg), M_IPFW, M_WAITOK | M_ZERO);
|
||||
|
||||
*ta_state = cfg;
|
||||
ti->lookup = ta_lookup_mac_radix;
|
||||
|
||||
return (0);
|
||||
}
|
||||
|
||||
static void
|
||||
ta_destroy_mac_radix(void *ta_state, struct table_info *ti)
|
||||
{
|
||||
struct mac_radix_cfg *cfg;
|
||||
struct radix_node_head *rnh;
|
||||
|
||||
cfg = (struct mac_radix_cfg *)ta_state;
|
||||
|
||||
rnh = (struct radix_node_head *)(ti->state);
|
||||
rnh->rnh_walktree(&rnh->rh, flush_radix_entry, rnh);
|
||||
rn_detachhead(&ti->state);
|
||||
|
||||
free(cfg, M_IPFW);
|
||||
}
|
||||
|
||||
static void
|
||||
tei_to_sockaddr_ent_mac(struct tentry_info *tei, struct sockaddr *sa,
|
||||
struct sockaddr *ma, int *set_mask)
|
||||
{
|
||||
int mlen, i;
|
||||
struct sa_mac *addr, *mask;
|
||||
u_char *cp;
|
||||
|
||||
mlen = tei->masklen;
|
||||
addr = (struct sa_mac *)sa;
|
||||
mask = (struct sa_mac *)ma;
|
||||
/* Set 'total' structure length */
|
||||
KEY_LEN(*addr) = KEY_LEN_MAC;
|
||||
KEY_LEN(*mask) = KEY_LEN_MAC;
|
||||
|
||||
for (i = mlen, cp = mask->mac_addr.octet; i >= 8; i -= 8)
|
||||
*cp++ = 0xFF;
|
||||
if (i > 0)
|
||||
*cp = ~((1 << (8 - i)) - 1);
|
||||
|
||||
addr->mac_addr = *((struct ether_addr *)tei->paddr);
|
||||
for (i = 0; i < ETHER_ADDR_LEN; ++i)
|
||||
addr->mac_addr.octet[i] &= mask->mac_addr.octet[i];
|
||||
|
||||
if (mlen != 8 * ETHER_ADDR_LEN)
|
||||
*set_mask = 1;
|
||||
else
|
||||
*set_mask = 0;
|
||||
}
|
||||
|
||||
static int
|
||||
ta_prepare_add_mac_radix(struct ip_fw_chain *ch, struct tentry_info *tei,
|
||||
void *ta_buf)
|
||||
{
|
||||
struct ta_buf_radix *tb;
|
||||
struct mac_radix_entry *ent;
|
||||
struct sockaddr *addr, *mask;
|
||||
int mlen, set_mask;
|
||||
|
||||
tb = (struct ta_buf_radix *)ta_buf;
|
||||
|
||||
mlen = tei->masklen;
|
||||
set_mask = 0;
|
||||
|
||||
if (tei->subtype == AF_LINK) {
|
||||
if (mlen > 8 * ETHER_ADDR_LEN)
|
||||
return (EINVAL);
|
||||
ent = malloc(sizeof(*ent), M_IPFW_TBL, M_WAITOK | M_ZERO);
|
||||
ent->masklen = mlen;
|
||||
|
||||
addr = (struct sockaddr *)&ent->sa;
|
||||
mask = (struct sockaddr *)&tb->addr.mac.ma;
|
||||
tb->ent_ptr = ent;
|
||||
} else {
|
||||
/* Unknown CIDR type */
|
||||
return (EINVAL);
|
||||
}
|
||||
|
||||
tei_to_sockaddr_ent_mac(tei, addr, mask, &set_mask);
|
||||
/* Set pointers */
|
||||
tb->addr_ptr = addr;
|
||||
if (set_mask != 0)
|
||||
tb->mask_ptr = mask;
|
||||
|
||||
return (0);
|
||||
}
|
||||
|
||||
static int
|
||||
ta_add_mac_radix(void *ta_state, struct table_info *ti, struct tentry_info *tei,
|
||||
void *ta_buf, uint32_t *pnum)
|
||||
{
|
||||
struct mac_radix_cfg *cfg;
|
||||
struct radix_node_head *rnh;
|
||||
struct radix_node *rn;
|
||||
struct ta_buf_radix *tb;
|
||||
uint32_t *old_value, value;
|
||||
|
||||
cfg = (struct mac_radix_cfg *)ta_state;
|
||||
tb = (struct ta_buf_radix *)ta_buf;
|
||||
|
||||
/* Save current entry value from @tei */
|
||||
rnh = ti->state;
|
||||
((struct mac_radix_entry *)tb->ent_ptr)->value = tei->value;
|
||||
|
||||
/* Search for an entry first */
|
||||
rn = rnh->rnh_lookup(tb->addr_ptr, tb->mask_ptr, &rnh->rh);
|
||||
if (rn != NULL) {
|
||||
if ((tei->flags & TEI_FLAGS_UPDATE) == 0)
|
||||
return (EEXIST);
|
||||
/* Record already exists. Update value if we're asked to */
|
||||
old_value = &((struct mac_radix_entry *)rn)->value;
|
||||
|
||||
value = *old_value;
|
||||
*old_value = tei->value;
|
||||
tei->value = value;
|
||||
|
||||
/* Indicate that update has happened instead of addition */
|
||||
tei->flags |= TEI_FLAGS_UPDATED;
|
||||
*pnum = 0;
|
||||
|
||||
return (0);
|
||||
}
|
||||
|
||||
if ((tei->flags & TEI_FLAGS_DONTADD) != 0)
|
||||
return (EFBIG);
|
||||
|
||||
rn = rnh->rnh_addaddr(tb->addr_ptr, tb->mask_ptr, &rnh->rh, tb->ent_ptr);
|
||||
if (rn == NULL) {
|
||||
/* Unknown error */
|
||||
return (EINVAL);
|
||||
}
|
||||
|
||||
cfg->count++;
|
||||
tb->ent_ptr = NULL;
|
||||
*pnum = 1;
|
||||
|
||||
return (0);
|
||||
}
|
||||
|
||||
static int
|
||||
ta_prepare_del_mac_radix(struct ip_fw_chain *ch, struct tentry_info *tei,
|
||||
void *ta_buf)
|
||||
{
|
||||
struct ta_buf_radix *tb;
|
||||
struct sockaddr *addr, *mask;
|
||||
int mlen, set_mask;
|
||||
|
||||
tb = (struct ta_buf_radix *)ta_buf;
|
||||
|
||||
mlen = tei->masklen;
|
||||
set_mask = 0;
|
||||
|
||||
if (tei->subtype == AF_LINK) {
|
||||
if (mlen > 8 * ETHER_ADDR_LEN)
|
||||
return (EINVAL);
|
||||
|
||||
addr = (struct sockaddr *)&tb->addr.mac.sa;
|
||||
mask = (struct sockaddr *)&tb->addr.mac.ma;
|
||||
} else
|
||||
return (EINVAL);
|
||||
|
||||
tei_to_sockaddr_ent_mac(tei, addr, mask, &set_mask);
|
||||
tb->addr_ptr = addr;
|
||||
if (set_mask != 0)
|
||||
tb->mask_ptr = mask;
|
||||
|
||||
return (0);
|
||||
}
|
||||
|
||||
static int
|
||||
ta_del_mac_radix(void *ta_state, struct table_info *ti, struct tentry_info *tei,
|
||||
void *ta_buf, uint32_t *pnum)
|
||||
{
|
||||
struct mac_radix_cfg *cfg;
|
||||
struct radix_node_head *rnh;
|
||||
struct radix_node *rn;
|
||||
struct ta_buf_radix *tb;
|
||||
|
||||
cfg = (struct mac_radix_cfg *)ta_state;
|
||||
tb = (struct ta_buf_radix *)ta_buf;
|
||||
rnh = ti->state;
|
||||
|
||||
rn = rnh->rnh_deladdr(tb->addr_ptr, tb->mask_ptr, &rnh->rh);
|
||||
|
||||
if (rn == NULL)
|
||||
return (ENOENT);
|
||||
|
||||
/* Save entry value to @tei */
|
||||
tei->value = ((struct mac_radix_entry *)rn)->value;
|
||||
|
||||
tb->ent_ptr = rn;
|
||||
cfg->count--;
|
||||
*pnum = 1;
|
||||
|
||||
return (0);
|
||||
}
|
||||
|
||||
static void
|
||||
ta_foreach_mac_radix(void *ta_state, struct table_info *ti, ta_foreach_f *f,
|
||||
void *arg)
|
||||
{
|
||||
struct radix_node_head *rnh;
|
||||
|
||||
rnh = (struct radix_node_head *)(ti->state);
|
||||
rnh->rnh_walktree(&rnh->rh, (walktree_f_t *)f, arg);
|
||||
}
|
||||
|
||||
static void
|
||||
ta_dump_mac_radix_tinfo(void *ta_state, struct table_info *ti, ipfw_ta_tinfo *tinfo)
|
||||
{
|
||||
struct mac_radix_cfg *cfg;
|
||||
|
||||
cfg = (struct mac_radix_cfg *)ta_state;
|
||||
|
||||
tinfo->flags = IPFW_TATFLAGS_AFDATA | IPFW_TATFLAGS_AFITEM;
|
||||
tinfo->taclass4 = IPFW_TACLASS_RADIX;
|
||||
tinfo->count4 = cfg->count;
|
||||
tinfo->itemsize4 = sizeof(struct mac_radix_entry);
|
||||
}
|
||||
|
||||
static int
|
||||
ta_dump_mac_radix_tentry(void *ta_state, struct table_info *ti, void *e,
|
||||
ipfw_obj_tentry *tent)
|
||||
{
|
||||
struct mac_radix_entry *n = (struct mac_radix_entry *)e;
|
||||
|
||||
memcpy(tent->k.mac, n->sa.mac_addr.octet, ETHER_ADDR_LEN);
|
||||
tent->masklen = n->masklen;
|
||||
tent->subtype = AF_LINK;
|
||||
tent->v.kidx = n->value;
|
||||
|
||||
return (0);
|
||||
}
|
||||
|
||||
static int
|
||||
ta_find_mac_radix_tentry(void *ta_state, struct table_info *ti,
|
||||
ipfw_obj_tentry *tent)
|
||||
{
|
||||
struct radix_node_head *rnh;
|
||||
void *e;
|
||||
|
||||
e = NULL;
|
||||
if (tent->subtype == AF_LINK) {
|
||||
struct sa_mac sa;
|
||||
KEY_LEN(sa) = KEY_LEN_MAC;
|
||||
memcpy(tent->k.mac, sa.mac_addr.octet, ETHER_ADDR_LEN);
|
||||
rnh = (struct radix_node_head *)ti->state;
|
||||
e = rnh->rnh_matchaddr(&sa, &rnh->rh);
|
||||
}
|
||||
|
||||
if (e != NULL) {
|
||||
ta_dump_mac_radix_tentry(ta_state, ti, e, tent);
|
||||
return (0);
|
||||
}
|
||||
|
||||
return (ENOENT);
|
||||
}
|
||||
|
||||
struct table_algo mac_radix = {
|
||||
.name = "mac:radix",
|
||||
.type = IPFW_TABLE_MAC,
|
||||
.flags = TA_FLAG_DEFAULT,
|
||||
.ta_buf_size = sizeof(struct ta_buf_radix),
|
||||
.init = ta_init_mac_radix,
|
||||
.destroy = ta_destroy_mac_radix,
|
||||
.prepare_add = ta_prepare_add_mac_radix,
|
||||
.prepare_del = ta_prepare_del_mac_radix,
|
||||
.add = ta_add_mac_radix,
|
||||
.del = ta_del_mac_radix,
|
||||
.flush_entry = ta_flush_radix_entry,
|
||||
.foreach = ta_foreach_mac_radix,
|
||||
.dump_tentry = ta_dump_mac_radix_tentry,
|
||||
.find_tentry = ta_find_mac_radix_tentry,
|
||||
.dump_tinfo = ta_dump_mac_radix_tinfo,
|
||||
.need_modify = ta_need_modify_radix,
|
||||
};
|
||||
|
||||
void
|
||||
ipfw_table_algo_init(struct ip_fw_chain *ch)
|
||||
{
|
||||
@ -4021,6 +4355,7 @@ ipfw_table_algo_init(struct ip_fw_chain *ch)
|
||||
ipfw_add_table_algo(ch, &number_array, sz, &number_array.idx);
|
||||
ipfw_add_table_algo(ch, &flow_hash, sz, &flow_hash.idx);
|
||||
ipfw_add_table_algo(ch, &addr_kfib, sz, &addr_kfib.idx);
|
||||
ipfw_add_table_algo(ch, &mac_radix, sz, &mac_radix.idx);
|
||||
}
|
||||
|
||||
void
|
||||
@ -4033,4 +4368,5 @@ ipfw_table_algo_destroy(struct ip_fw_chain *ch)
|
||||
ipfw_del_table_algo(ch, number_array.idx);
|
||||
ipfw_del_table_algo(ch, flow_hash.idx);
|
||||
ipfw_del_table_algo(ch, addr_kfib.idx);
|
||||
ipfw_del_table_algo(ch, mac_radix.idx);
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user