lib: mgmtd: fix too early daemon detach of mgmtd #16451
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Correct FRR startup counts on a daemon's vty socket to be open when the parent process exits. The parent process waits for `frr_check_detach()` to be called by the child before exiting. The problem is when the `FRR_MANUAL_VTY_START` flag is set the vty socket was not opened but `frr_check_detach()` was called anyway. Instead add a bool option for `frr_check_detach()` to be called when the socket is opened with `frr_vty_serv_start()`, and do so when "manually" calling said function (i.e., when FRR_MANUAL_VTY_START is set). The `FRR_MANUAL_VTY_START` flag is only set by mgmtd. The reason we wait to open the vty socket is so that mgmtd can parse the various daemon specific config files it has taken over, after the event loop has started, but before we receive any possible new config from `vtysh`. fixes FRRouting#16362 Signed-off-by: Christian Hopps <chopps@labn.net>
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https://github.com/Mergifyio backport dev/10.1 stable/10.0 |
✅ Backports have been created
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This was referenced Jul 24, 2024
ton31337
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Jul 25, 2024
lib: mgmtd: fix too early daemon detach of mgmtd (backport #16451)
ton31337
added a commit
that referenced
this pull request
Jul 25, 2024
lib: mgmtd: fix too early daemon detach of mgmtd (backport #16451)
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Correct FRR startup counts on a daemon's vty socket to be open when the parent process exits. The parent process waits for
frr_check_detach()to be called by the child before exiting. The problem is when theFRR_MANUAL_VTY_STARTflag is set the vty socket was not opened butfrr_check_detach()was called anyway.Instead add a bool option for
frr_check_detach()to be called when the socket is opened withfrr_vty_serv_start(), and do so when "manually" calling said function (i.e., when FRR_MANUAL_VTY_START is set).The
FRR_MANUAL_VTY_STARTflag is only set by mgmtd. The reason we wait to open the vty socket is so that mgmtd can parse the various daemon specific config files it has taken over, after the event loop has started, but before we receive any possible new config fromvtysh.fixes #16362