mbuf: add m_dataptr() for length-checked access to mbuf data
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Authored by abhijeetsharma2002_gmail.com on Sun, Oct 18, 1:45 AM.

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	F176369235: D60831.diff
	Sun, Oct 18, 7:28 AM

	F176360095: D60831.id190166.diff
	Sun, Oct 18, 5:37 AM

	F176356074: D60831.id190166.diff
	Sun, Oct 18, 4:43 AM

	F176355677: D60831.diff
	Sun, Oct 18, 4:36 AM

	F176348998: D60831.diff
	Sun, Oct 18, 3:09 AM

	F176344661: D60831.diff
	Sun, Oct 18, 2:15 AM

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imp

olce

This is a draft revision that has not yet been submitted for review.

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Reviewers

rpaulo
emaste

Summary

m_dataptr(m, off, len) returns a pointer to len bytes at off in m, or
NULL if m does not hold them, in every build. Under -fbounds-safety the
result is bounded to len. debug.bounds_dataptr_test exercises it.

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Repository

rG FreeBSD src repository

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Build Status

Buildable 78327
Build 75210: arc lint + arc unit

Event Timeline

abhijeetsharma2002_gmail.com created this revision.Sun, Oct 18, 1:45 AM

abhijeetsharma2002_gmail.com held this revision as a draft.

Herald added subscribers: olce, imp. · View Herald TranscriptSun, Oct 18, 1:45 AM

Harbormaster completed remote builds in B78327: Diff 190166.Sun, Oct 18, 1:45 AM

abhijeetsharma2002_gmail.com added a parent revision: D60830: tcp: build tcp_sack.c and tcp_reass.c under bounds-safety.Sun, Oct 18, 1:45 AM

abhijeetsharma2002_gmail.com added reviewers: rpaulo, emaste.Sun, Oct 18, 1:51 AM

Revision Contents
Changeset List

Path

Size

sys/

kern/

kern_bounds_test.c

75 lines

sys/

mbuf.h

14 lines

Diff 190166

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sys/kern/kern_bounds_test.c