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Merge b47d5a4f6b ("Merge tag 'audit-pr-20220321' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit") into android-mainline

Browse Source 
Steps on the way to 5.18-rc1

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I3e6d7b82bbb3878c847b4fa7a2b6a239e9f3a88b
This commit is contained in:
Greg Kroah-Hartman
2022-03-30 13:59:07 +02:00
parent 2ad8aa9b5d b47d5a4f6b
commit 2c7316efff
2 changed files with 71 additions and 20 deletions
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4
kernel/audit.h
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@@ -201,6 +201,10 @@ struct audit_context {
struct {
char *name;
} module;
struct {
struct audit_ntp_data ntp_data;
struct timespec64 tk_injoffset;
} time;
};
int fds[2];
struct audit_proctitle proctitle;

87
kernel/auditsc.c
View File

@@ -1340,6 +1340,53 @@ static void audit_log_fcaps(struct audit_buffer *ab, struct audit_names *name)
from_kuid(&init_user_ns, name->fcap.rootid));
}
static void audit_log_time(struct audit_context *context, struct audit_buffer **ab)
{
const struct audit_ntp_data *ntp = &context->time.ntp_data;
const struct timespec64 *tk = &context->time.tk_injoffset;
static const char * const ntp_name[] = {
"offset",
"freq",
"status",
"tai",
"tick",
"adjust",
};
int type;
if (context->type == AUDIT_TIME_ADJNTPVAL) {
for (type = 0; type < AUDIT_NTP_NVALS; type++) {
if (ntp->vals[type].newval != ntp->vals[type].oldval) {
if (!*ab) {
*ab = audit_log_start(context,
GFP_KERNEL,
AUDIT_TIME_ADJNTPVAL);
if (!*ab)
return;
}
audit_log_format(*ab, "op=%s old=%lli new=%lli",
ntp_name[type],
ntp->vals[type].oldval,
ntp->vals[type].newval);
audit_log_end(*ab);
*ab = NULL;
}
}
}
if (tk->tv_sec != 0 || tk->tv_nsec != 0) {
if (!*ab) {
*ab = audit_log_start(context, GFP_KERNEL,
AUDIT_TIME_INJOFFSET);
if (!*ab)
return;
}
audit_log_format(*ab, "sec=%lli nsec=%li",
(long long)tk->tv_sec, tk->tv_nsec);
audit_log_end(*ab);
*ab = NULL;
}
}
static void show_special(struct audit_context *context, int *call_panic)
{
struct audit_buffer *ab;
@@ -1454,6 +1501,11 @@ static void show_special(struct audit_context *context, int *call_panic)
audit_log_format(ab, "(null)");
break;
case AUDIT_TIME_ADJNTPVAL:
case AUDIT_TIME_INJOFFSET:
/* this call deviates from the rest, eating the buffer */
audit_log_time(context, &ab);
break;
}
audit_log_end(ab);
}
@@ -2849,31 +2901,26 @@ void __audit_fanotify(unsigned int response)
void __audit_tk_injoffset(struct timespec64 offset)
{
audit_log(audit_context(), GFP_KERNEL, AUDIT_TIME_INJOFFSET,
"sec=%lli nsec=%li",
(long long)offset.tv_sec, offset.tv_nsec);
}
struct audit_context *context = audit_context();
static void audit_log_ntp_val(const struct audit_ntp_data *ad,
const char *op, enum audit_ntp_type type)
{
const struct audit_ntp_val *val = &ad->vals[type];
if (val->newval == val->oldval)
return;
audit_log(audit_context(), GFP_KERNEL, AUDIT_TIME_ADJNTPVAL,
"op=%s old=%lli new=%lli", op, val->oldval, val->newval);
/* only set type if not already set by NTP */
if (!context->type)
context->type = AUDIT_TIME_INJOFFSET;
memcpy(&context->time.tk_injoffset, &offset, sizeof(offset));
}
void __audit_ntp_log(const struct audit_ntp_data *ad)
{
audit_log_ntp_val(ad, "offset", AUDIT_NTP_OFFSET);
audit_log_ntp_val(ad, "freq", AUDIT_NTP_FREQ);
audit_log_ntp_val(ad, "status", AUDIT_NTP_STATUS);
audit_log_ntp_val(ad, "tai", AUDIT_NTP_TAI);
audit_log_ntp_val(ad, "tick", AUDIT_NTP_TICK);
audit_log_ntp_val(ad, "adjust", AUDIT_NTP_ADJUST);
struct audit_context *context = audit_context();
int type;
for (type = 0; type < AUDIT_NTP_NVALS; type++)
if (ad->vals[type].newval != ad->vals[type].oldval) {
/* unconditionally set type, overwriting TK */
context->type = AUDIT_TIME_ADJNTPVAL;
memcpy(&context->time.ntp_data, ad, sizeof(*ad));
break;
}
}
void __audit_log_nfcfg(const char *name, u8 af, unsigned int nentries,