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sysctl: print dotted keys again

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When the globbing update was put into sysctl, you could no longer
simply use the keys because one key could potentially be
multiple paths once the glob expansion occured.  Using the path
instead gave a unique output.

Except certain programs, such as salt, expected the output to use
the dotted path "kernel.hostname" and not "kernel/hostname".

We can no longer use the original key, so now for each path:
  Copy the path
  strip off /proc/
  convert all / to .

The sysctl testsuite was also updated to check for a few different
types of conversion failures.

References:
 commit 6389deca5b
 https://www.freelists.org/post/procps/some-procpsn4400-fixes,4
 https://repo.saltproject.io/

Signed-off-by: Craig Small <csmall@dropbear.xyz>
This commit is contained in:
Craig Small
2022-04-09 14:18:28 +10:00
parent 4fbf8d22a9
commit b159c198c9
4 changed files with 33 additions and 11 deletions
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14
testsuite/sysctl.test/sysctl_write.exp
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@ -3,11 +3,19 @@ set sysctl ${topdir}sysctl
set test "sysctl write from command line"
spawn $sysctl --dry-run kernel.hostname=procps-test
expect_pass "$test" "/proc/sys/kernel/hostname = procps-test"
expect_pass "$test" "kernel.hostname = procps-test"
set test "sysctl write from command line using slash"
spawn $sysctl --dry-run kernel/hostname=procps-test
expect_pass "$test" "kernel.hostname = procps-test"
set test "sysctl write from configuration file"
spawn $sysctl --dry-run -f ${topdir}testsuite/sysctl_glob_test.conf
expect_pass "$test" "/proc/sys/fs/protected_fifos = 2\\s+/proc/sys/fs/protected_symlinks = 2\\s+/proc/sys/fs/protected_hardlinks = 1"
expect_pass "$test" "fs.protected_fifos = 2\\s+fs.protected_symlinks = 2\\s+fs.protected_hardlinks = 1"
set test "sysctl write from file with slashes"
spawn $sysctl --dry-run -f ${topdir}testsuite/sysctl_slash_test.conf
expect_pass "$test" "kernel.hostname = procps-test"
set hostname_file "/proc/sys/kernel/hostname"
if {[file exists ${hostname_file}]} {
@ -25,7 +33,7 @@ if {[file exists ${hostname_file}]} {
expect_spawn_retval "$test" 0
}
} else {
unsupported "sysctl write: hostname file doe not exist"
unsupported "sysctl write: hostname file does not exist"
}
set test "sysctl write above /proc"