lwIP - A Lightweight TCP/IP stack - Bugs: bug #38203, DHCP options are not recorded in...
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bug #38203: DHCP options are not recorded in all DHCP ack messages
| Submitter: | Christoffer Lind <christofferlind> | ||
| Submitted: | Wed 30 Jan 2013 03:43:21 PM UTC | ||
| Category: | DHCP | Severity: | 3 - Normal |
| Item Group: | Faulty Behaviour | Status: | Fixed |
| Privacy: | Public | Assigned to: | goldsimon |
| Open/Closed: | Closed | Planned Release: | None |
| lwIP version: | 1.4.0 | ||
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Wed 23 Mar 2016 08:10:28 PM UTC, comment #5: |
Simon Goldschmidt <goldsimon> |
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Fri 18 Mar 2016 06:41:35 PM UTC, comment #4: Hello,
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Florent Matignon <fmatignon> |
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Tue 23 Jun 2015 07:21:52 AM UTC, comment #3: Hmmm... This is not a problem on our DHCP servers since they seem to send everything needed. Nevertheless, I don't want to leave it as is and don't really have the time right now to investigate this further...
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Simon Goldschmidt <goldsimon> |
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Mon 22 Jun 2015 02:13:46 PM UTC, comment #2: As commented by a user (in the user's list), this patch causes unwanted behavior (As I understand the RFC, this looks so) in REBOOTING.
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Sergio R. Caprile <scaprile> |
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Fri 20 Mar 2015 07:33:24 PM UTC, comment #1: Reading the RFC, I think you're right about the options in ACKs - I've just fixed that, thanks for reporting.
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Simon Goldschmidt <goldsimon> |
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Wed 30 Jan 2013 03:43:21 PM UTC, original submission:
The code in dhcp_recv() only calls the function dhcp_handle_ack() if the current state is DHCP_REQUESTING. According to RFC 2131 "4.4 DHCP client behavior" the client shall record the lease time in state DHCP_REBOOTING, DHCP_REBINDING and DHCP_RENEWING as well. As far as I understand from the RFC this applies to all options (not only the lease time) and the options shall be updated in all 4 states.
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Christoffer Lind <christofferlind> |
Depends on the following items: None found
Items that depend on this one: None found
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Follow 10 latest changes.
| Date | Changed by | Updated Field | Previous Value | => | Replaced by |
|---|---|---|---|---|---|
| 2016-03-23 | goldsimon | Status | None | Fixed | |
| Assigned to | None | goldsimon | |||
| Open/Closed | Open | Closed | |||
| 2016-03-18 | fmatignon | Attached File | - | Added dhcp-options-are-not-recorded-in-all-dhcp-ack-messages.patch, #36689 | |
| 2015-08-31 | goldsimon | Assigned to | goldsimon | None | |
| 2015-06-23 | goldsimon | Status | Fixed | None | |
| Open/Closed | Closed | Open | |||
| 2015-03-20 | goldsimon | Status | None | Fixed | |
| Assigned to | None | goldsimon | |||
| Open/Closed | Open | Closed |

Of course you're right about the RFC! Fixed, thanks for the patch.