[issue26835] Add file-sealing ops to fcntl

[Christian Heimes]

Change by Christian Heimes :


--
resolution:  -> fixed
stage: patch review -> resolved
status: open -> closed

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[issue26835] Add file-sealing ops to fcntl

[Irit Katriel]

Irit Katriel  added the comment:

This seems complete, can it be closed?

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nosy: +iritkatriel

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[issue26835] Add file-sealing ops to fcntl

[Christian Heimes]

Christian Heimes  added the comment:


New changeset 8cbb5b6625268400d6e9092b75b06d6f90398dc9 by Christian Heimes in 
branch 'master':
bpo-26835: Add file sealing constants to fcntl (GH-13694)
https://github.com/python/cpython/commit/8cbb5b6625268400d6e9092b75b06d6f90398dc9


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[issue26835] Add file-sealing ops to fcntl

[Christian Heimes]

Change by Christian Heimes :


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pull_requests: +13580
pull_request: https://github.com/python/cpython/pull/13694

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[issue26835] Add file-sealing ops to fcntl

[Joannah Nanjekye]

Change by Joannah Nanjekye :


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keywords: +patch
pull_requests: +12938
stage: needs patch -> patch review

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[issue26835] Add file-sealing ops to fcntl

[Joannah Nanjekye]

Change by Joannah Nanjekye :


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nosy: +nanjekyejoannah

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[issue26835] Add file-sealing ops to fcntl

[Christian Heimes]

Changes by Christian Heimes :


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assignee: christian.heimes -> 

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[issue26835] Add file-sealing ops to fcntl

[Christian Heimes]

New submission from Christian Heimes:

The file-sealing ops are useful for memfd_create(). The new syscall and ops are 
only available on Linux with a recent kernel.

http://man7.org/linux/man-pages/man2/fcntl.2.html
http://man7.org/linux/man-pages/man2/memfd_create.2.html

Code:

#include 

#ifndef F_ADD_SEALS

/*
 * Set/Get seals
 */
#define F_ADD_SEALS (F_LINUX_SPECIFIC_BASE + 9)
#define F_GET_SEALS (F_LINUX_SPECIFIC_BASE + 10)

/*
 * Types of seals
 */
#define F_SEAL_SEAL 0x0001  /* prevent further seals from being set */
#define F_SEAL_SHRINK   0x0002  /* prevent file from shrinking */
#define F_SEAL_GROW 0x0004  /* prevent file from growing */
#define F_SEAL_WRITE0x0008  /* prevent writes */
/* (1U << 31) is reserved for signed error codes */

#endif /* F_ADD_SEALS */

--
assignee: christian.heimes
components: Extension Modules
messages: 264108
nosy: christian.heimes
priority: normal
severity: normal
stage: needs patch
status: open
title: Add file-sealing ops to fcntl
type: enhancement
versions: Python 3.6

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