diff mbox series

[net-next,1/6] net: fib_rules: Add DSCP mask attribute

Message ID 20250220080525.831924-2-idosch@nvidia.com (mailing list archive)
State Accepted
Commit ca4edd969a9483b1a1837056641019f62287063f
Delegated to: Netdev Maintainers
Headers show
Series net: fib_rules: Add DSCP mask support | expand

Checks

Context Check Description
netdev/series_format success Posting correctly formatted
netdev/tree_selection success Clearly marked for net-next
netdev/ynl success Generated files up to date; no warnings/errors; no diff in generated;
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 16 this patch: 16
netdev/build_tools success Errors and warnings before: 26 (+1) this patch: 26 (+1)
netdev/cc_maintainers warning 1 maintainers not CCed: kuniyu@amazon.com
netdev/build_clang success Errors and warnings before: 28 this patch: 28
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 2617 this patch: 2617
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 14 lines checked
netdev/build_clang_rust success No Rust files in patch. Skipping build
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0
netdev/contest success net-next-2025-02-20--18-00 (tests: 893)

Commit Message

Ido Schimmel Feb. 20, 2025, 8:05 a.m. UTC 
Add an attribute that allows matching on DSCP with a mask. Matching on
DSCP with a mask is needed in deployments where users encode path
information into certain bits of the DSCP field.

Temporarily set the type of the attribute to 'NLA_REJECT' while support
is being added.

Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
---
 include/uapi/linux/fib_rules.h | 1 +
 net/core/fib_rules.c           | 1 +
 2 files changed, 2 insertions(+)
diff mbox series

Patch

diff --git a/include/uapi/linux/fib_rules.h b/include/uapi/linux/fib_rules.h
index 95ec01b15c65..2df6e4035d50 100644
--- a/include/uapi/linux/fib_rules.h
+++ b/include/uapi/linux/fib_rules.h
@@ -72,6 +72,7 @@  enum {
 	FRA_FLOWLABEL_MASK,	/* flowlabel mask */
 	FRA_SPORT_MASK,	/* sport mask */
 	FRA_DPORT_MASK,	/* dport mask */
+	FRA_DSCP_MASK,	/* dscp mask */
 	__FRA_MAX
 };
 
diff --git a/net/core/fib_rules.c b/net/core/fib_rules.c
index 5ddd34cbe7f6..00e6fe79ecba 100644
--- a/net/core/fib_rules.c
+++ b/net/core/fib_rules.c
@@ -845,6 +845,7 @@  static const struct nla_policy fib_rule_policy[FRA_MAX + 1] = {
 	[FRA_FLOWLABEL_MASK] = { .type = NLA_BE32 },
 	[FRA_SPORT_MASK] = { .type = NLA_U16 },
 	[FRA_DPORT_MASK] = { .type = NLA_U16 },
+	[FRA_DSCP_MASK] = { .type = NLA_REJECT },
 };
 
 int fib_newrule(struct net *net, struct sk_buff *skb, struct nlmsghdr *nlh,