Blame SOURCES/0053-fix-nftables-packet-marks-with-masks.patch

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From 08cb6f0c7abca95fa898020bb9f3ba3f4bfbf148 Mon Sep 17 00:00:00 2001
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From: Eric Garver <eric@garver.life>
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Date: Fri, 28 Aug 2020 13:15:34 -0400
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Subject: [PATCH 53/62] fix(nftables): packet marks with masks
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(cherry picked from commit e296b926ae5dc4cbc277b6dd755d045e73ed4411)
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(cherry picked from commit 371efe757f2bde20b4301a78ed3c48ec1d31bf5e)
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---
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 src/firewall/core/fw_zone.py  | 2 ++
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 src/firewall/core/nftables.py | 9 +++++++--
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 2 files changed, 9 insertions(+), 2 deletions(-)
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diff --git a/src/firewall/core/fw_zone.py b/src/firewall/core/fw_zone.py
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index 129306b6f969..6eaed4232405 100644
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--- a/src/firewall/core/fw_zone.py
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+++ b/src/firewall/core/fw_zone.py
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@@ -1719,6 +1719,8 @@ class FirewallZone(object):
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                 if enable:
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                     transaction.add_chain(zone, table, "INPUT")
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                     transaction.add_chain(zone, table, "FORWARD_IN")
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+                if enable and type(rule.action) == Rich_Mark:
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+                    transaction.add_chain(zone, "mangle", "PREROUTING")
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                 rules = backend.build_zone_icmp_block_rules(enable, zone, ict, rule)
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                 transaction.add_rules(backend, rules)
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diff --git a/src/firewall/core/nftables.py b/src/firewall/core/nftables.py
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index 0198200b2372..76668a60468f 100644
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--- a/src/firewall/core/nftables.py
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+++ b/src/firewall/core/nftables.py
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@@ -1043,8 +1043,13 @@ class nftables(object):
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                                                 zone=zone)
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             table = "mangle"
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             chain = "%s_%s_%s" % (table, target, chain_suffix)
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-            rule_action = {"mangle": {"key": {"meta": {"key": "mark"}},
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-                                      "value": rich_rule.action.set}}
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+            value = rich_rule.action.set.split("/")
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+            if len(value) > 1:
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+                rule_action = {"mangle": {"key": {"meta": {"key": "mark"}},
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+                                          "value": {"^": [{"&": [{"meta": {"key": "mark"}}, value[1]]}, value[0]]}}}
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+            else:
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+                rule_action = {"mangle": {"key": {"meta": {"key": "mark"}},
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+                                          "value": value[0]}}
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         else:
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             raise FirewallError(INVALID_RULE,
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                                 "Unknown action %s" % type(rich_rule.action))
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-- 
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2.28.0
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