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net: fib_rules: Add flow label selector attributes

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Add new FIB rule attributes which will allow user space to match on the
IPv6 flow label with a mask. Temporarily set the type of the attributes
to 'NLA_REJECT' while support is being added in the IPv6 code.

Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Guillaume Nault <gnault@redhat.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Ido Schimmel 2024-12-16 19:11:53 +02:00 committed by Paolo Abeni
parent 4fefbc66df
commit d1d761b301
2 changed files with 4 additions and 0 deletions
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2
include/uapi/linux/fib_rules.h
View File

@ -68,6 +68,8 @@ enum {
FRA_SPORT_RANGE, /* sport */
FRA_DPORT_RANGE, /* dport */
FRA_DSCP, /* dscp */
FRA_FLOWLABEL, /* flowlabel */
FRA_FLOWLABEL_MASK, /* flowlabel mask */
__FRA_MAX
};

2
net/core/fib_rules.c
View File

@ -770,6 +770,8 @@ static const struct nla_policy fib_rule_policy[FRA_MAX + 1] = {
[FRA_SPORT_RANGE] = { .len = sizeof(struct fib_rule_port_range) },
[FRA_DPORT_RANGE] = { .len = sizeof(struct fib_rule_port_range) },
[FRA_DSCP] = NLA_POLICY_MAX(NLA_U8, INET_DSCP_MASK >> 2),
[FRA_FLOWLABEL] = { .type = NLA_REJECT },
[FRA_FLOWLABEL_MASK] = { .type = NLA_REJECT },
};
int fib_nl_newrule(struct sk_buff *skb, struct nlmsghdr *nlh,