src/plugins/dpdk/ipsec/ipsec.c

#include <openssl/pem.h>
#include <vppinfra/error.h>
#include "certs.h"

int
ptls_compare_separator_line (const char *line, const char *begin_or_end,
			     const char *label)
{
  int ret = strncmp (line, "-----", 5);
  size_t text_index = 5;

  if (ret == 0)
    {
      size_t begin_or_end_length = strlen (begin_or_end);
      ret = strncmp (line + text_index, begin_or_end, begin_or_end_length);
      text_index += begin_or_end_length;
    }

  if (ret == 0)
    {
      ret = line[text_index] - ' ';
      text_index++;
    }

  if (ret == 0)
    {
      size_t label_length = strlen (label);
      ret = strncmp (line + text_index, label, label_length);
      text_index += label_length;
    }

  if (ret == 0)
    {
      ret = strncmp (line + text_index, "-----", 5);
    }

  return ret;
}

int
ptls_get_bio_pem_object (BIO * bio, const char *label, ptls_buffer_t * buf)
{
  int ret = PTLS_ERROR_PEM_LABEL_NOT_FOUND;
  char line[256];
  ptls_base64_decode_state_t state;

  /* Get the label on a line by itself */
  while (BIO_gets (bio, line, 256))
    {
      if (ptls_compare_separator_line (line, "BEGIN", label) == 0)
	{
	  ret = 0;
	  ptls_base64_decode_init (&state);
	  break;
	}
    }
  /* Get the data in the buffer */
  while (ret == 0 && BIO_gets (bio, line, 256))
    {
      if (ptls_compare_separator_line (line, "END", label) == 0)
	{
	  if (state.status == PTLS_BASE64_DECODE_DONE
	      || (state.status == PTLS_BASE64_DECODE_IN_PROGRESS
		  && state.nbc == 0))
	    {
	      ret = 0;
	    }
	  else
	    {
	      ret = PTLS_ERROR_INCORRECT_BASE64;
	    }
	  break;
	}
      else
	{
	  ret = ptls_base64_decode (line, &state, buf);
	}
    }

  return ret;
}

int
ptls_load_bio_pem_objects (BIO * bio, const char *label, ptls_iovec_t * list,
			   size_t list_max, size_t * nb_objects)
{
  int ret = 0;
  size_t count = 0;

  *nb_objects = 0;

  if (ret == 0)
    {
      while (count < list_max)
	{
	  ptls_buffer_t buf;

	  ptls_buffer_init (&buf, "", 0);

	  ret = ptls_get_bio_pem_object (bio, label, &buf);

	  if (ret == 0)
	    {
	      if (buf.off > 0 && buf.is_allocated)
		{
		  list[count].base = buf.base;
		  list[count].len = buf.off;
		  count++;
		}
	      else
		{
		  ptls_buffer_dispose (&buf);
		}
	    }
	  else
	    {
	      ptls_buffer_dispose (&buf);
	      break;
	    }
	}
    }

  if (ret == PTLS_ERROR_PEM_LABEL_NOT_FOUND && count > 0)
    {
      ret = 0;
    }

  *nb_objects = count;

  return ret;
}

#define PTLS_MAX_CERTS_IN_CONTEXT 16

int
ptls_load_bio_certificates (ptls_context_t * ctx, BIO * bio)
{
  int ret = 0;

  ctx->certificates.list =
    (ptls_iovec_t *) malloc (PTLS_MAX_CERTS_IN_CONTEXT *
			     sizeof (ptls_iovec_t));

  if (ctx->certificates.list == NULL)
    {
      ret = PTLS_ERROR_NO_MEMORY;
    }
  else
    {
      ret =
	ptls_load_bio_pem_objects (bio, "CERTIFICATE", ctx->certificates.list,
				   PTLS_MAX_CERTS_IN_CONTEXT,
				   &ctx->certificates.count);
    }

  return ret;
}

int
load_bio_certificate_chain (ptls_context_t * ctx, const char *cert_data)
{
  BIO *cert_bio;
  cert_bio = BIO_new_mem_buf (cert_data, -1);
  if (ptls_load_bio_certificates (ctx, cert_bio) != 0)
    {
      BIO_free (cert_bio);
      return -1;
    }
  BIO_free (cert_bio);
  return 0;
}

int
load_bio_private_key (ptls_context_t * ctx, const char *pk_data)
{
  static ptls_openssl_sign_certificate_t sc;
  EVP_PKEY *pkey;
  BIO *key_bio;

  key_bio = BIO_new_mem_buf (pk_data, -1);
  pkey = PEM_read_bio_PrivateKey (key_bio, NULL, NULL, NULL);
  BIO_free (key_bio);

  if (pkey == NULL)
    return -1;

  ptls_openssl_init_sign_certificate (&sc, pkey);
  EVP_PKEY_free (pkey);

  ctx->sign_certificate = &sc.super;
  return 0;
}

/*
 * fd.io coding-style-patch-verification: ON
 *
 * Local Variables:
 * eval: (c-set-style "gnu")
 * End:
 */
Age	Commit message (Expand)	Author	Files	Lines
2017-04-28	dpdk: cryptodev support enabled by default	Sergio Gonzalez Monroy	1	-9/+1
2017-04-06	Use thread local storage for thread index	Damjan Marion	1	-1/+1
2017-03-09	vlib_mains == 0 special cases be gone	Dave Barach	1	-6/+2
2017-03-01	dpdk: be a plugin	Damjan Marion	1	-0/+430