gk: forbid del_fib_entry_locked() to delete neighbor entries#526
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AltraMayor merged 3 commits intomasterfrom Aug 24, 2021
Merged
gk: forbid del_fib_entry_locked() to delete neighbor entries#526AltraMayor merged 3 commits intomasterfrom
AltraMayor merged 3 commits intomasterfrom
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Simplify remove_prefix_from_lpm_locked() by reusing check_prefix_exists_locked().
There are two motivations to drop remove_prefix_from_lpm_locked(): 1. Thanks to the simplification of remove_prefix_from_lpm_locked(), what was accomplished in the previous patch, having its whole code within del_fib_entry_locked(), its only caller, became reasonable. 2. This prepares del_fib_entry_locked() for the following patch, which addresses an issue of del_fib_entry_locked().
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Tested on XIA1 server. |
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Calling
del_fib_entry_locked()on a neighbor prefix would've put Gatekeeper's FIB table in an inconsistent state. Besides this problem, there's no need to remove neighbor prefixes. This pull request forbids the operation.