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net: fib_rules: Add new attribute to set protocol

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For ages iproute2 has used `struct rtmsg` as the ancillary header for
FIB rules and in the process set the protocol value to RTPROT_BOOT.
Until ca56209a66 ("net: Allow a rule to track originating protocol")
the kernel rules code ignored the protocol value sent from userspace
and always returned 0 in notifications. To avoid incompatibility with
existing iproute2, send the protocol as a new attribute.

Fixes: cac56209a6 ("net: Allow a rule to track originating protocol")
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Donald Sharp
2018-02-23 14:01:52 -05:00
committed by David S. Miller
parent cc30c93fa0
commit 1b71af6053
4 changed files with 20 additions and 8 deletions
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3
include/net/fib_rules.h
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@@ -109,7 +109,8 @@ struct fib_rule_notifier_info {
[FRA_SUPPRESS_IFGROUP] = { .type = NLA_U32 }, \
[FRA_GOTO] = { .type = NLA_U32 }, \
[FRA_L3MDEV] = { .type = NLA_U8 }, \
[FRA_UID_RANGE] = { .len = sizeof(struct fib_rule_uid_range) }
[FRA_UID_RANGE] = { .len = sizeof(struct fib_rule_uid_range) }, \
[FRA_PROTOCOL] = { .type = NLA_U8 }
static inline void fib_rule_get(struct fib_rule *rule)
{