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-rw-r--r--hosts/vidhar/printing/ruleset.nft191
1 files changed, 0 insertions, 191 deletions
diff --git a/hosts/vidhar/printing/ruleset.nft b/hosts/vidhar/printing/ruleset.nft
deleted file mode 100644
index edf8597d..00000000
--- a/hosts/vidhar/printing/ruleset.nft
+++ /dev/null
@@ -1,191 +0,0 @@
1define icmp_protos = {ipv6-icmp, icmp, igmp}
2
3table arp filter {
4 limit lim_arp {
5 rate over 50 mbytes/second burst 50 mbytes
6 }
7
8 counter arp-rx {}
9 counter arp-tx {}
10
11 counter arp-ratelimit-rx {}
12 counter arp-ratelimit-tx {}
13
14 chain input {
15 type filter hook input priority filter
16 policy accept
17
18 limit name lim_arp counter name arp-ratelimit-rx drop
19
20 counter name arp-rx
21 }
22
23 chain output {
24 type filter hook output priority filter
25 policy accept
26
27 limit name lim_arp counter name arp-ratelimit-tx drop
28
29 counter name arp-tx
30 }
31}
32
33table inet filter {
34 limit lim_reject {
35 rate over 1000/second burst 1000 packets
36 }
37
38 limit lim_icmp {
39 rate over 50 mbytes/second burst 50 mbytes
40 }
41
42 counter invalid-fw {}
43 counter fw-lo {}
44 counter fw-printer {}
45 counter fw-host {}
46
47 counter icmp-fw {}
48 counter icmp-ratelimit-fw {}
49
50 counter reject-ratelimit-fw {}
51 counter reject-fw {}
52 counter reject-tcp-fw {}
53 counter reject-icmp-fw {}
54
55 counter drop-fw {}
56
57 counter invalid-rx {}
58
59 counter rx-lo {}
60 counter invalid-local4-rx {}
61 counter invalid-local6-rx {}
62
63 counter icmp-ratelimit-rx {}
64 counter icmp-rx {}
65
66 counter dhcp-rx {}
67 counter cups-rx {}
68
69 counter established-rx {}
70
71 counter reject-ratelimit-rx {}
72 counter reject-rx {}
73 counter reject-tcp-rx {}
74 counter reject-icmp-rx {}
75
76 counter drop-rx {}
77
78 counter tx-lo {}
79
80 counter icmp-ratelimit-tx {}
81 counter icmp-tx {}
82
83 counter cups-tx {}
84 counter dhcp-tx {}
85
86 counter tx {}
87
88 chain forward {
89 type filter hook forward priority filter
90 policy drop
91
92
93 ct state invalid log level debug prefix "drop invalid forward: " counter name invalid-fw drop
94
95
96 iifname lo counter name fw-lo accept
97
98
99 meta l4proto $icmp_protos limit name lim_icmp counter name icmp-ratelimit-fw drop
100 meta l4proto $icmp_protos counter name icmp-fw accept
101
102
103 iifname printer oifname eth0 ip daddr 10.141.5.0 meta l4proto . th dport { tcp . 53, udp . 53, udp . 123 } counter name fw-printer accept
104 iifname printer oifname eth0 ip6 daddr 2a03:4000:52:ada:5:: meta l4proto . th dport { tcp . 53, udp . 53, udp . 123 } counter name fw-printer accept
105 iifname eth0 oifname printer counter name fw-host accept
106
107
108 limit name lim_reject log level debug prefix "drop forward: " counter name reject-ratelimit-fw drop
109 log level debug prefix "reject forward: " counter name reject-fw
110 meta l4proto tcp ct state new counter name reject-tcp-fw reject with tcp reset
111 ct state new counter name reject-icmp-fw reject
112
113
114 counter name drop-fw
115 }
116
117 chain input {
118 type filter hook input priority filter
119 policy drop
120
121
122 ct state invalid log level debug prefix "drop invalid input: " counter name invalid-rx drop
123
124
125 iifname lo counter name rx-lo accept
126 iif != lo ip daddr 127.0.0.1/8 counter name invalid-local4-rx reject
127 iif != lo ip6 daddr ::1/128 counter name invalid-local6-rx reject
128
129 meta l4proto $icmp_protos limit name lim_icmp counter name icmp-ratelimit-rx drop
130 meta l4proto $icmp_protos counter name icmp-rx accept
131
132
133 tcp dport 631 counter name cups-rx accept
134
135 iifname printer udp dport 67 counter name dhcp-rx accept
136
137 ct state {established, related} counter name established-rx accept
138
139
140 limit name lim_reject log level debug prefix "drop input: " counter name reject-ratelimit-rx drop
141 log level debug prefix "reject input: " counter name reject-rx
142 meta l4proto tcp ct state new counter name reject-tcp-rx reject with tcp reset
143 ct state new counter name reject-icmp-rx reject
144
145
146 counter name drop-rx
147 }
148
149 chain output {
150 type filter hook output priority filter
151 policy accept
152
153
154 oifname lo counter name tx-lo accept
155
156 meta l4proto $icmp_protos limit name lim_icmp counter name icmp-ratelimit-tx drop
157 meta l4proto $icmp_protos counter name icmp-tx accept
158
159
160 tcp sport 631 counter name cups-tx accept
161
162 udp sport 67 counter name dhcp-tx accept
163
164
165 counter name tx
166 }
167}
168
169table ip nat {
170 counter host-nat {}
171
172 chain postrouting {
173 type nat hook postrouting priority srcnat
174 policy accept
175
176
177 oifname eth0 counter name host-nat masquerade
178 }
179}
180
181table ip mss_clamp {
182 counter host-mss-clamp {}
183
184 chain postrouting {
185 type filter hook postrouting priority mangle
186 policy accept
187
188
189 oifname eth0 tcp flags & (syn|rst) == syn counter name host-mss-clamp tcp option maxseg size set rt mtu
190 }
191}
generated by cgit v1.2.3 (git 2.25.1) at 2025-11-07 07:49:53 +0000