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Address coderabbit-discoverd issues

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This commit is contained in:
Adam Outler
2025-11-01 18:18:32 +00:00
parent 79887f0bd7
commit 70373b1fbd
8 changed files with 136 additions and 198 deletions
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9
install/production-filesystem/entrypoint.d/90-excessive-capabilities.sh
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@@ -1,12 +1,17 @@
#!/bin/bash
# Bash used in this check for simplicty of math operations.
# excessive-capabilities.sh checks that no more than the necessary
# NET_ADMIN NET_BIND_SERVICE and NET_RAW capabilities are present.
# Get bounding capabilities from /proc/self/status (what can be acquired)
BND_HEX=$(grep '^CapBnd:' /proc/self/status | awk '{print $2}' | tr -d '\t')
BND_HEX=$(grep '^CapBnd:' /proc/self/status 2>/dev/null | awk '{print $2}' | tr -d '\t')
if [ -z "$BND_HEX" ]; then
exit 0
fi
# Convert hex to decimal
BND_DEC=$(( 16#$BND_HEX ))
BND_DEC=$(( 16#$BND_HEX )) || exit 0
# Allowed capabilities: NET_BIND_SERVICE (10), NET_ADMIN (12), NET_RAW (13)
ALLOWED_DEC=$(( ( 1 << 10 ) | ( 1 << 12 ) | ( 1 << 13 ) ))