diff options
Diffstat (limited to 'net/sched')
| -rw-r--r-- | net/sched/act_tunnel_key.c | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/net/sched/act_tunnel_key.c b/net/sched/act_tunnel_key.c index ff0909b57511..30b58256d3da 100644 --- a/net/sched/act_tunnel_key.c +++ b/net/sched/act_tunnel_key.c @@ -11,6 +11,7 @@ #include <linux/rtnetlink.h> #include <net/geneve.h> #include <net/vxlan.h> +#include <net/erspan.h> #include <net/netlink.h> #include <net/pkt_sched.h> #include <net/dst.h> @@ -58,6 +59,7 @@ enc_opts_policy[TCA_TUNNEL_KEY_ENC_OPTS_MAX + 1] = { .strict_start_type = TCA_TUNNEL_KEY_ENC_OPTS_VXLAN }, [TCA_TUNNEL_KEY_ENC_OPTS_GENEVE] = { .type = NLA_NESTED }, [TCA_TUNNEL_KEY_ENC_OPTS_VXLAN] = { .type = NLA_NESTED }, + [TCA_TUNNEL_KEY_ENC_OPTS_ERSPAN] = { .type = NLA_NESTED }, }; static const struct nla_policy @@ -73,6 +75,14 @@ vxlan_opt_policy[TCA_TUNNEL_KEY_ENC_OPT_VXLAN_MAX + 1] = { [TCA_TUNNEL_KEY_ENC_OPT_VXLAN_GBP] = { .type = NLA_U32 }, }; +static const struct nla_policy +erspan_opt_policy[TCA_TUNNEL_KEY_ENC_OPT_ERSPAN_MAX + 1] = { + [TCA_TUNNEL_KEY_ENC_OPT_ERSPAN_VER] = { .type = NLA_U8 }, + [TCA_TUNNEL_KEY_ENC_OPT_ERSPAN_INDEX] = { .type = NLA_U32 }, + [TCA_TUNNEL_KEY_ENC_OPT_ERSPAN_DIR] = { .type = NLA_U8 }, + [TCA_TUNNEL_KEY_ENC_OPT_ERSPAN_HWID] = { .type = NLA_U8 }, +}; + static int tunnel_key_copy_geneve_opt(const struct nlattr *nla, void *dst, int dst_len, struct netlink_ext_ack *extack) @@ -151,6 +161,59 @@ tunnel_key_copy_vxlan_opt(const struct nlattr *nla, void *dst, int dst_len, return sizeof(struct vxlan_metadata); } +static int +tunnel_key_copy_erspan_opt(const struct nlattr *nla, void *dst, int dst_len, + struct netlink_ext_ack *extack) +{ + struct nlattr *tb[TCA_TUNNEL_KEY_ENC_OPT_ERSPAN_MAX + 1]; + int err; + u8 ver; + + err = nla_parse_nested(tb, TCA_TUNNEL_KEY_ENC_OPT_ERSPAN_MAX, nla, + erspan_opt_policy, extack); + if (err < 0) + return err; + + if (!tb[TCA_TUNNEL_KEY_ENC_OPT_ERSPAN_VER]) { + NL_SET_ERR_MSG(extack, "Missing tunnel key erspan option ver"); + return -EINVAL; + } + + ver = nla_get_u8(tb[TCA_TUNNEL_KEY_ENC_OPT_ERSPAN_VER]); + if (ver == 1) { + if (!tb[TCA_TUNNEL_KEY_ENC_OPT_ERSPAN_INDEX]) { + NL_SET_ERR_MSG(extack, "Missing tunnel key erspan option index"); + return -EINVAL; + } + } else if (ver == 2) { + if (!tb[TCA_TUNNEL_KEY_ENC_OPT_ERSPAN_DIR] || + !tb[TCA_TUNNEL_KEY_ENC_OPT_ERSPAN_HWID]) { + NL_SET_ERR_MSG(extack, "Missing tunnel key erspan option dir or hwid"); + return -EINVAL; + } + } else { + NL_SET_ERR_MSG(extack, "Tunnel key erspan option ver is incorrect"); + return -EINVAL; + } + + if (dst) { + struct erspan_metadata *md = dst; + + md->version = ver; + if (ver == 1) { + nla = tb[TCA_TUNNEL_KEY_ENC_OPT_ERSPAN_INDEX]; + md->u.index = nla_get_be32(nla); + } else { + nla = tb[TCA_TUNNEL_KEY_ENC_OPT_ERSPAN_DIR]; + md->u.md2.dir = nla_get_u8(nla); + nla = tb[TCA_TUNNEL_KEY_ENC_OPT_ERSPAN_HWID]; + set_hwid(&md->u.md2, nla_get_u8(nla)); + } + } + + return sizeof(struct erspan_metadata); +} + static int tunnel_key_copy_opts(const struct nlattr *nla, u8 *dst, int dst_len, struct netlink_ext_ack *extack) { @@ -192,6 +255,18 @@ static int tunnel_key_copy_opts(const struct nlattr *nla, u8 *dst, opts_len += opt_len; type = TUNNEL_VXLAN_OPT; break; + case TCA_TUNNEL_KEY_ENC_OPTS_ERSPAN: + if (type) { + NL_SET_ERR_MSG(extack, "Duplicate type for erspan options"); + return -EINVAL; + } + opt_len = tunnel_key_copy_erspan_opt(attr, dst, + dst_len, extack); + if (opt_len < 0) + return opt_len; + opts_len += opt_len; + type = TUNNEL_ERSPAN_OPT; + break; } } @@ -235,6 +310,14 @@ static int tunnel_key_opts_set(struct nlattr *nla, struct ip_tunnel_info *info, #else return -EAFNOSUPPORT; #endif + case TCA_TUNNEL_KEY_ENC_OPTS_ERSPAN: +#if IS_ENABLED(CONFIG_INET) + info->key.tun_flags |= TUNNEL_ERSPAN_OPT; + return tunnel_key_copy_opts(nla, ip_tunnel_info_opts(info), + opts_len, extack); +#else + return -EAFNOSUPPORT; +#endif default: NL_SET_ERR_MSG(extack, "Cannot set tunnel options for unknown tunnel type"); return -EINVAL; @@ -530,6 +613,37 @@ static int tunnel_key_vxlan_opts_dump(struct sk_buff *skb, return 0; } +static int tunnel_key_erspan_opts_dump(struct sk_buff *skb, + const struct ip_tunnel_info *info) +{ + struct erspan_metadata *md = (struct erspan_metadata *)(info + 1); + struct nlattr *start; + + start = nla_nest_start_noflag(skb, TCA_TUNNEL_KEY_ENC_OPTS_ERSPAN); + if (!start) + return -EMSGSIZE; + + if (nla_put_u8(skb, TCA_TUNNEL_KEY_ENC_OPT_ERSPAN_VER, md->version)) + goto err; + + if (md->version == 1 && + nla_put_be32(skb, TCA_TUNNEL_KEY_ENC_OPT_ERSPAN_INDEX, md->u.index)) + goto err; + + if (md->version == 2 && + (nla_put_u8(skb, TCA_TUNNEL_KEY_ENC_OPT_ERSPAN_DIR, + md->u.md2.dir) || + nla_put_u8(skb, TCA_TUNNEL_KEY_ENC_OPT_ERSPAN_HWID, + get_hwid(&md->u.md2)))) + goto err; + + nla_nest_end(skb, start); + return 0; +err: + nla_nest_cancel(skb, start); + return -EMSGSIZE; +} + static int tunnel_key_opts_dump(struct sk_buff *skb, const struct ip_tunnel_info *info) { @@ -551,6 +665,10 @@ static int tunnel_key_opts_dump(struct sk_buff *skb, err = tunnel_key_vxlan_opts_dump(skb, info); if (err) goto err_out; + } else if (info->key.tun_flags & TUNNEL_ERSPAN_OPT) { + err = tunnel_key_erspan_opts_dump(skb, info); + if (err) + goto err_out; } else { err_out: nla_nest_cancel(skb, start); |