A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-29 03:01:39 -04:00
Code Issues Projects Releases Packages Wiki Activity

Add 64-bit capability support to the kernel

Browse source 
The patch supports legacy (32-bit) capability userspace, and where possible
translates 32-bit capabilities to/from userspace and the VFS to 64-bit
kernel space capabilities.  If a capability set cannot be compressed into
32-bits for consumption by user space, the system call fails, with -ERANGE.

FWIW libcap-2.00 supports this change (and earlier capability formats)

 http://www.kernel.org/pub/linux/libs/security/linux-privs/kernel-2.6/

[[email protected]: coding-syle fixes]
[[email protected]: use get_task_comm()]
[[email protected]: build fix]
[[email protected]: do not initialise statics to 0 or NULL]
[[email protected]: unused var]
[[email protected]: export __cap_ symbols]
Signed-off-by: Andrew G. Morgan <[email protected]>
Cc: Stephen Smalley <[email protected]>
Acked-by: Serge Hallyn <[email protected]>
Cc: Chris Wright <[email protected]>
Cc: James Morris <[email protected]>
Cc: Casey Schaufler <[email protected]>
Signed-off-by: Erez Zadok <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Andrew Morgan 2008-02-04 22:29:42 -08:00 • committed by Linus Torvalds
commit e338d263a7
7 changed files with 349 additions and 125 deletions
Download patch file Download diff file Expand all files Collapse all files

21
fs/proc/array.c
View file

@ -281,14 +281,23 @@ static inline char *task_sig(struct task_struct *p, char *buffer)
return buffer;
}
static char *render_cap_t(const char *header, kernel_cap_t *a, char *buffer)
{
unsigned __capi;
buffer += sprintf(buffer, "%s", header);
CAP_FOR_EACH_U32(__capi) {
buffer += sprintf(buffer, "%08x",
a->cap[(_LINUX_CAPABILITY_U32S-1) - __capi]);
}
return buffer + sprintf(buffer, "\n");
}
static inline char *task_cap(struct task_struct *p, char *buffer)
{
return buffer + sprintf(buffer, "CapInh:\t%016x\n"
"CapPrm:\t%016x\n"
"CapEff:\t%016x\n",
cap_t(p->cap_inheritable),
cap_t(p->cap_permitted),
cap_t(p->cap_effective));
buffer = render_cap_t("CapInh:\t", &p->cap_inheritable, buffer);
buffer = render_cap_t("CapPrm:\t", &p->cap_permitted, buffer);
return render_cap_t("CapEff:\t", &p->cap_effective, buffer);
}
static inline char *task_context_switch_counts(struct task_struct *p,