+2005-05-03 Paul Jakma <paul@dishone.st>
+
+ * (general) More cleaning up of stream abuse, isisd should be
+ back to previous functionality. Replace various XMALLOC+memset's
+ with XCALLOC
+ * isis_tlv.c: (tlv_add_padding) use stream_put to clear the stream
+ rather than forward endp, as isisd reuses streams.
+ * isis_pdu.c: (process_lsp) cleanup direct reference to stream endp
+ (send_lsp) manual copy of a stream cleaned up to use stream_copy.
+ * isis_network.c: (isis_recv_pdu_bcast) replace direct memcpy with
+ stream_write
+ (isis_recv_pdu_p2p) replace recvfrom directly into stream with
+ stream_recvfrom. Remove dangerous and now unneeded manual update
+ of endp.
+ (isis_recv_pdu_bcast / non-GNU_LINUX) Replace direct memcpy with
+ stream_write.
+ (isis_recv_pdu_p2p) replace read direct into stream with
+ stream_read_try, and hence remove the manual update of endp.
+ * isis_lsp.c: (lsp_update_data) manual stream dup replaced with
+ stream_dup.
+ (lsppdu_realloc) mempcy into stream data replaced with stream_put.
+ (lsp_build_nonpseudo) remove mysterious stream_forward_endp's -
+ which were originally stream_set_putp - shouldn't be needed
+ now that all the manual fiddling of private stream data has been
+ corrected.
+ (build_topology_lsp_data) remove unneeded twiddling of endp,
+ appears to be due to lsppdu_realloc(), but it appears to sort of
+ do the right thing wrt streams.
+
2005-04-15 Paul Jakma <paul@dishone.st>
* topology/Makefile.am: random.c is a source of libtopology, so list
* with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
+
#include <stdlib.h>
#include <stdio.h>
#include <zebra.h>
int retval;
/* copying only the relevant part of our stream */
- lsp->pdu = stream_new (stream->endp);
- lsp->pdu->getp = stream->getp;
- lsp->pdu->endp = stream->endp;
- memcpy (lsp->pdu->data, stream->data, stream->endp);
-
+ lsp->pdu = stream_dup (stream);
+
/* setting pointers to the correct place */
lsp->isis_header = (struct isis_fixed_hdr *) (STREAM_DATA (lsp->pdu));
lsp->lsp_header = (struct isis_link_state_hdr *) (STREAM_DATA (lsp->pdu) +
#else /* otherwise we have to move all pointers */
u_char *newpdu;
newpdu = stream_new (ntohs (lsp->lsp_header->pdu_len) + size);
- memcpy (STREAM_DATA (newpdu), STREAM_DATA (lsp->pdu),
- ntohs (lsp->lsp_header->pdu_len));
+ stream_put (newpdu, STREAM_DATA(lsp->pdu), ntohs (lsp->lsp_header->pdu_len);
XFREE (memorytype, lsp->pdu);
lsp->pdu = newpdu;
lsp->isis_header = (struct isis_fixed_hdr *) STREAM_DATA (lsp->pdu);
}
}
- stream_forward_endp (lsp->pdu, ISIS_FIXED_HDR_LEN + ISIS_LSP_HDR_LEN);
-
if (lsp->tlv_data.nlpids)
tlv_add_nlpid (lsp->tlv_data.nlpids, lsp->pdu);
if (lsp->tlv_data.hostname)
/*
* Building the zero lsp
*/
- stream_forward_endp (lsp->pdu, ISIS_FIXED_HDR_LEN + ISIS_LSP_HDR_LEN);
/*
* Add the authentication info if its present
*/
lsp->tlv_data.is_neighs = list_new ();
lsp->tlv_data.is_neighs->del = free_tlv;
}
- is_neigh = XMALLOC (MTYPE_ISIS_TLV, sizeof (struct is_neigh));
- memset (is_neigh, 0, sizeof (struct is_neigh));
+ is_neigh = XCALLOC (MTYPE_ISIS_TLV, sizeof (struct is_neigh));
+
memcpy (&is_neigh->neigh_id, isis->sysid, ISIS_SYS_ID_LEN);
listnode_add (lsp->tlv_data.is_neighs, is_neigh);
(level == 2 && adj->sys_type == ISIS_SYSTYPE_L2_IS))
{
/* an IS neighbour -> add it */
- is_neigh = XMALLOC (MTYPE_ISIS_TLV, sizeof (struct is_neigh));
- memset (is_neigh, 0, sizeof (struct is_neigh));
+ is_neigh = XCALLOC (MTYPE_ISIS_TLV, sizeof (struct is_neigh));
+
memcpy (&is_neigh->neigh_id, adj->sysid, ISIS_SYS_ID_LEN);
listnode_add (lsp->tlv_data.is_neighs, is_neigh);
}
lsp->tlv_data.es_neighs = list_new ();
lsp->tlv_data.es_neighs->del = free_tlv;
}
- es_neigh = XMALLOC (MTYPE_ISIS_TLV, sizeof (struct es_neigh));
- memset (es_neigh, 0, sizeof (struct es_neigh));
+ es_neigh = XCALLOC (MTYPE_ISIS_TLV, sizeof (struct es_neigh));
+
memcpy (&es_neigh->first_es_neigh, adj->sysid, ISIS_SYS_ID_LEN);
listnode_add (lsp->tlv_data.es_neighs, is_neigh);
}
}
}
- stream_forward_endp (lsp->pdu, ISIS_FIXED_HDR_LEN + ISIS_LSP_HDR_LEN);
/*
* Add the authentication info if it's present
*/
(lsppdu_realloc (lsp, MTYPE_ISIS_TLV, strlen (buff)) - 1);
memcpy (lsp->tlv_data.hostname->name, buff, strlen (buff));
}
-
- /* thanks to hannes, another bug bites the dust */
- lsp->pdu->endp = ntohs (lsp->lsp_header->pdu_len);
}
#endif /* TOPOLOGY_GENERATE */
(struct sockaddr *) &s_addr, (socklen_t *) &addr_len);
/* then we lose the LLC */
- memcpy (STREAM_DATA (circuit->rcv_stream),
- sock_buff + LLC_LEN, bytesread - LLC_LEN);
- circuit->rcv_stream->endp = bytesread - LLC_LEN;
+ stream_write (circuit->rcv_stream, sock_buff + LLC_LEN, bytesread - LLC_LEN);
memcpy (ssnpa, &s_addr.sll_addr, s_addr.sll_halen);
addr_len = sizeof (s_addr);
/* we can read directly to the stream */
- bytesread = recvfrom (circuit->fd, STREAM_DATA (circuit->rcv_stream),
- circuit->interface->mtu, 0,
- (struct sockaddr *) &s_addr, (socklen_t *) &addr_len);
+ bytesread = stream_recvfrom (circuit->rcv_stream, circuit->fd,
+ circuit->interface->mtu, 0,
+ (struct sockaddr *) &s_addr,
+ (socklen_t *) &addr_len);
if (s_addr.sll_pkttype == PACKET_OUTGOING)
{
return ISIS_WARNING;
}
- circuit->rcv_stream->endp = bytesread;
-
/* If we don't have protocol type 0x00FE which is
* ISO over GRE we exit with pain :)
*/
offset = bpf_hdr->bh_hdrlen + LLC_LEN + ETHER_HDR_LEN;
/* then we lose the BPF, LLC and ethernet headers */
- memcpy (STREAM_DATA (circuit->rcv_stream),
- readbuff + offset, bpf_hdr->bh_caplen - LLC_LEN - ETHER_HDR_LEN);
-
- circuit->rcv_stream->endp = bpf_hdr->bh_caplen - LLC_LEN - ETHER_HDR_LEN;
- circuit->rcv_stream->getp = 0;
+ stream_write (circuit->rcv_stream, readbuff + offset,
+ bpf_hdr->bh_caplen - LLC_LEN - ETHER_HDR_LEN);
+ stream_set_getp (circuit->rcv_stream, 0);
memcpy (ssnpa, readbuff + bpf_hdr->bh_hdrlen + ETHER_ADDR_LEN,
ETHER_ADDR_LEN);
{
int bytesread;
- bytesread = read (circuit->fd, STREAM_DATA (circuit->rcv_stream),
- circuit->interface->mtu);
+ bytesread = stream_read (circuit->rcv_stream, circuit->fd,
+ circuit->interface->mtu);
if (bytesread < 0)
{
return ISIS_WARNING;
}
- circuit->rcv_stream->endp = bytesread;
-
return ISIS_OK;
}
ntohl (hdr->seq_num),
ntohs (hdr->checksum),
ntohs (hdr->rem_lifetime),
- circuit->rcv_stream->endp, circuit->interface->name);
+ stream_get_endp (circuit->rcv_stream),
+ circuit->interface->name);
}
assert (ntohs (hdr->pdu_len) > ISIS_LSP_HDR_LEN);
circuit->interface->name);
}
/* copy our lsp to the send buffer */
- circuit->snd_stream->getp = lsp->pdu->getp;
- circuit->snd_stream->endp = lsp->pdu->endp;
- memcpy (circuit->snd_stream->data, lsp->pdu->data, lsp->pdu->endp);
+ stream_copy (circuit->snd_stream, lsp->pdu);
retval = circuit->tx (circuit, lsp->level);
goto err;
if (!stream_putc (stream, (u_char) 255)) /* LENGHT */
goto err;
- stream_forward_endp (stream, 255); /* VALUE */
+ stream_put (stream, NULL, 255); /* zero padding */
}
left = STREAM_SIZE (stream) - stream_get_endp (stream);
stream_putc (stream, PADDING);
stream_putc (stream, left - 2);
- stream_forward_endp (stream, left - 2);
+ stream_put (stream, NULL, left-2);
return ISIS_OK;
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