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1. Re: [PATCH net] ipvs: Improve robustness to the ipvs sysctl (score: 1): Author: hujunwei <hujunwei4@xxxxxxxxxx>; Date: Tue, 30 Jul 2019 10:23:31 +0800; Hello, Julian I agree with you, in these four function, only proc_do_sync_mode can use extra1/2 in table for the proc_dointvec_minmax, i will update it in patch v2. Thank you for reply. Regards, Junw; /html/lvs-devel/2019-07/msg00055.html (11,500 bytes)
2. Re: [PATCH net] ipvs: Improve robustness to the ipvs sysctl (score: 1): Author: Julian Anastasov <ja@xxxxxx>; Date: Mon, 29 Jul 2019 23:20:06 +0300 (EEST); Hello, We store the 'ipvs' back-ptr in extra2, so may be we can not use it in the table for proc_do_defense_mode, only for tmp. proc_do_sync_mode may use extra1/2 in table for the proc_dointvec_minma; /html/lvs-devel/2019-07/msg00054.html (10,658 bytes)
3. Re: [PATCH net] ipvs: Improve robustness to the ipvs sysctl (score: 1): Author: hujunwei <hujunwei4@xxxxxxxxxx>; Date: Mon, 29 Jul 2019 22:58:45 +0800; Hi Julian, thank you for replay. For example, when a negative number value occurs over a period of time, the func such as ip_vs_sync_conn_v0() will get invalid number by sysctl_sync_threshold(), casu; /html/lvs-devel/2019-07/msg00052.html (11,574 bytes)
4. Re: [PATCH net] ipvs: Improve robustness to the ipvs sysctl (score: 1): Author: Florian Westphal <fw@xxxxxxxxx>; Date: Mon, 29 Jul 2019 02:49:58 +0200; [ trimmed CC list ] Does this cause any problems? If so, what are those? Wouldn't it be better do use proc_dointvec_minmax and set the constraints via .extra1,2 in the sysctl knob definition?; /html/lvs-devel/2019-07/msg00051.html (10,610 bytes)
5. [PATCH net] ipvs: Improve robustness to the ipvs sysctl (score: 1): Author: hujunwei <hujunwei4@xxxxxxxxxx>; Date: Mon, 15 Jul 2019 22:48:18 +0800; The ipvs module parse the user buffer and save it to sysctl, then check if the value is valid. invalid value occurs over a period of time. Here, I add a variable, struct ctl_table tmp, used to read t; /html/lvs-devel/2019-07/msg00035.html (13,569 bytes)

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