#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>

#include "rnd.h"
#include "die.h"
#include "ioexact.h"
#include "ioops.h"

static int fdw = -1;

static void randombytes_weak(unsigned char *x, size_t xlen)
{
	int ret;

	if (fdw == -1) {
		for (;;) {
			fdw = open(LOW_ENTROPY_SOURCE, O_RDONLY);
			if (fdw != -1)
				break;
			sleep(1);
		}
	}

	while (xlen > 0) {
		if (xlen < 1048576)
			ret = xlen;
		else
			ret = 1048576;

		ret = read(fdw, x, ret);
		if (ret < 1) {
			sleep(1);
			continue;
		}

		x += ret;
		xlen -= ret;
	}
}

static void randombytes_strong(unsigned char *x, size_t xlen)
{
	int fds, ret;

	fds = open_or_die(HIG_ENTROPY_SOURCE, O_RDONLY);

	ret = read_exact(fds, x, xlen, 0);
	if (ret != (int) xlen)
		panic("Error reading from entropy source!\n");

	close(fds);
}

int secrand(void)
{
	int ret;

	randombytes_weak((void *) &ret, sizeof(ret));

	return ret;
}

void gen_key_bytes(unsigned char *area, size_t len)
{
	randombytes_strong(area, len);
}
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<tr><th>author</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-01-27 12:29:30 -0800</td></tr>
<tr><th>committer</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-01-27 12:29:30 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/tools/perf/tests/thread-mg-share.c?id=dd3b9f25c867cb2507a45e436d6ede8eb08e7b05'>dd3b9f25c867cb2507a45e436d6ede8eb08e7b05</a> (<a href='/cgit.cgi/linux/net-next.git/patch/tools/perf/tests/thread-mg-share.c?id=dd3b9f25c867cb2507a45e436d6ede8eb08e7b05'>patch</a>)</td></tr>
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<div class='commit-subject'>Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma</div><div class='commit-msg'>Pull rdma fixes from Doug Ledford:
 "Second round of -rc fixes for 4.10.

  This -rc cycle has been slow for the rdma subsystem. I had already
  sent you the first batch before the Holiday break. After that, we kept
  only getting a few here or there. Up until this week, when I got a
  drop of 13 to one driver (qedr). So, here's the -rc patches I have. I
  currently have none held in reserve, so unless something new comes in,
  this is it until the next merge window opens.

  Summary:

   - series of iw_cxgb4 fixes to make it work with the drain cq API

   - one or two patches each to: srp, iser, cxgb3, vmw_pvrdma, umem,
     rxe, and ipoib

   - one big series (13 patches) for the new qedr driver"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (27 commits)
  RDMA/cma: Fix unknown symbol when CONFIG_IPV6 is not enabled
  IB/rxe: Prevent from completer to operate on non valid QP
  IB/rxe: Fix rxe dev insertion to rxe_dev_list
  IB/umem: Release pid in error and ODP flow
  RDMA/qedr: Dispatch port active event from qedr_add
  RDMA/qedr: Fix and simplify memory leak in PD alloc
  RDMA/qedr: Fix RDMA CM loopback
  RDMA/qedr: Fix formatting
  RDMA/qedr: Mark three functions as static
  RDMA/qedr: Don't reset QP when queues aren't flushed
  RDMA/qedr: Don't spam dmesg if QP is in error state
  RDMA/qedr: Remove CQ spinlock from CM completion handlers
  RDMA/qedr: Return max inline data in QP query result
  RDMA/qedr: Return success when not changing QP state
  RDMA/qedr: Add uapi header qedr-abi.h
  RDMA/qedr: Fix MTU returned from QP query
  RDMA/core: Add the function ib_mtu_int_to_enum
  IB/vmw_pvrdma: Fix incorrect cleanup on pvrdma_pci_probe error path
  IB/vmw_pvrdma: Don't leak info from alloc_ucontext
  IB/cxgb3: fix misspelling in header guard
  ...
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=dd3b9f25c867cb2507a45e436d6ede8eb08e7b05'>Diffstat</a> (limited to 'tools/perf/tests/thread-mg-share.c')</div><table summary='diffstat' class='diffstat'>