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work on -Wconversion...

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This commit is contained in:
goldsimon 2017-07-06 12:38:50 +02:00
parent 2594f1a423
commit b8ecfe640c
2 changed files with 44 additions and 29 deletions
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65
src/core/ipv6/ip6_frag.c
View File

@ -181,7 +181,7 @@ ip6_reass_free_complete_datagram(struct ip6_reassdata *ipr)
}
clen = pbuf_clen(p);
LWIP_ASSERT("pbufs_freed + clen <= 0xffff", pbufs_freed + clen <= 0xffff);
pbufs_freed += clen;
pbufs_freed = (u16_t)(pbufs_freed + clen);
pbuf_free(p);
}
#endif /* LWIP_ICMP6 */
@ -197,7 +197,7 @@ ip6_reass_free_complete_datagram(struct ip6_reassdata *ipr)
p = iprh->next_pbuf;
clen = pbuf_clen(pcur);
LWIP_ASSERT("pbufs_freed + clen <= 0xffff", pbufs_freed + clen <= 0xffff);
pbufs_freed += clen;
pbufs_freed = (u16_t)(pbufs_freed + clen);
pbuf_free(pcur);
}
@ -220,7 +220,7 @@ ip6_reass_free_complete_datagram(struct ip6_reassdata *ipr)
/* Finally, update number of pbufs in reassembly queue */
LWIP_ASSERT("ip_reass_pbufcount >= clen", ip6_reass_pbufcount >= pbufs_freed);
ip6_reass_pbufcount -= pbufs_freed;
ip6_reass_pbufcount = (u16_t)(ip6_reass_pbufcount - pbufs_freed);
}
#if IP_REASS_FREE_OLDEST
@ -275,6 +275,7 @@ ip6_reass(struct pbuf *p)
struct ip6_reass_helper *iprh, *iprh_tmp, *iprh_prev=NULL;
struct ip6_frag_hdr *frag_hdr;
u16_t offset, len, start, end;
ptrdiff_t hdrdiff;
u16_t clen;
u8_t valid = 1;
struct pbuf *q, *next_pbuf;
@ -295,8 +296,24 @@ ip6_reass(struct pbuf *p)
* Adjust for headers before Fragment Header.
* And finally adjust by Fragment Header length. */
len = lwip_ntohs(ip6_current_header()->_plen);
len -= (u16_t)(((u8_t*)p->payload - (const u8_t*)ip6_current_header()) - IP6_HLEN);
len -= IP6_FRAG_HLEN;
hdrdiff = (u8_t*)p->payload - (const u8_t*)ip6_current_header();
LWIP_ASSERT("not a valid pbuf (ip6_input check missing?)", hdrdiff <= 0xFFFF);
LWIP_ASSERT("not a valid pbuf (ip6_input check missing?)", hdrdiff >= IP6_HLEN);
hdrdiff -= IP6_HLEN;
hdrdiff += IP6_FRAG_HLEN;
if (hdrdiff > len) {
IP6_FRAG_STATS_INC(ip6_frag.proterr);
IP6_FRAG_STATS_INC(ip6_frag.drop);
goto nullreturn;
}
len = (u16_t)(len - hdrdiff);
start = (offset & IP6_FRAG_OFFSET_MASK);
if (start > (0xFFFF - len)) {
/* u16_t overflow, cannot handle this */
IP6_FRAG_STATS_INC(ip6_frag.proterr);
IP6_FRAG_STATS_INC(ip6_frag.drop);
goto nullreturn;
}
/* Look for the datagram the fragment belongs to in the current datagram queue,
* remembering the previous in the queue for later dequeueing. */
@ -412,8 +429,7 @@ ip6_reass(struct pbuf *p)
* sure that we are going to add this packet to the list. */
iprh = (struct ip6_reass_helper *)p->payload;
next_pbuf = NULL;
start = (offset & IP6_FRAG_OFFSET_MASK);
end = (offset & IP6_FRAG_OFFSET_MASK) + len;
end = (u16_t)(start + len);
/* find the right place to insert this pbuf */
/* Iterate through until we either get to the end of the list (append),
@ -496,7 +512,7 @@ ip6_reass(struct pbuf *p)
/* Track the current number of pbufs current 'in-flight', in order to limit
the number of fragments that may be enqueued at any one time */
ip6_reass_pbufcount += clen;
ip6_reass_pbufcount = (u16_t)(ip6_reass_pbufcount + clen);
/* Remember IPv6 header if this is the first fragment. */
if (start == 0) {
@ -599,14 +615,14 @@ ip6_reass(struct pbuf *p)
* of the chain, and because the caller adjusts all its pointers on
* successful reassembly. */
MEMMOVE((u8_t*)ipr->iphdr + sizeof(struct ip6_frag_hdr), ipr->iphdr,
(u8_t*)p->payload - (u8_t*)ipr->iphdr);
(size_t)((u8_t*)p->payload - (u8_t*)ipr->iphdr));
/* This is where the IPv6 header is now. */
iphdr_ptr = (struct ip6_hdr*)((u8_t*)ipr->iphdr +
sizeof(struct ip6_frag_hdr));
/* Adjust datagram length by adding header lengths. */
ipr->datagram_len += (u16_t)(((u8_t*)p->payload - (u8_t*)iphdr_ptr)
ipr->datagram_len = (u16_t)(ipr->datagram_len + ((u8_t*)p->payload - (u8_t*)iphdr_ptr)
- IP6_HLEN);
/* Set payload length in ip header. */
@ -638,7 +654,9 @@ ip6_reass(struct pbuf *p)
memp_free(MEMP_IP6_REASSDATA, ipr);
/* adjust the number of pbufs currently queued for reassembly. */
ip6_reass_pbufcount -= pbuf_clen(p);
clen = pbuf_clen(p);
LWIP_ASSERT("ip6_reass_pbufcount >= clen", ip6_reass_pbufcount >= clen);
ip6_reass_pbufcount = (u16_t)(ip6_reass_pbufcount - clen);
/* Move pbuf back to IPv6 header. This should never fail. */
if (pbuf_header_force(p, (s16_t)((u8_t*)p->payload - (u8_t*)iphdr_ptr))) {
@ -718,9 +736,9 @@ ip6_frag(struct pbuf *p, struct netif *netif, const ip6_addr_t *dest)
u16_t left_to_copy;
#endif
static u32_t identification;
u16_t nfb;
u16_t left, cop;
u16_t mtu;
const u16_t mtu = nd6_get_destination_mtu(dest, netif);
const u16_t nfb = (u16_t)((mtu - (IP6_HLEN + IP6_FRAG_HLEN)) & IP6_FRAG_OFFSET_MASK);
u16_t fragment_offset = 0;
u16_t last;
u16_t poff = IP6_HLEN;
@ -729,12 +747,9 @@ ip6_frag(struct pbuf *p, struct netif *netif, const ip6_addr_t *dest)
original_ip6hdr = (struct ip6_hdr *)p->payload;
mtu = nd6_get_destination_mtu(dest, netif);
/* @todo we assume there are no options in the unfragmentable part (IPv6 header). */
left = p->tot_len - IP6_HLEN;
nfb = (mtu - (IP6_HLEN + IP6_FRAG_HLEN)) & IP6_FRAG_OFFSET_MASK;
LWIP_ASSERT("p->tot_len >= IP6_HLEN", p->tot_len >= IP6_HLEN);
left = (u16_t)(p->tot_len - IP6_HLEN);
while (left) {
last = (left <= nfb);
@ -780,8 +795,8 @@ ip6_frag(struct pbuf *p, struct netif *netif, const ip6_addr_t *dest)
/* Can just adjust p directly for needed offset. */
p->payload = (u8_t *)p->payload + poff;
p->len -= poff;
p->tot_len -= poff;
p->len = (u16_t)(p->len - poff);
p->tot_len = (u16_t)(p->tot_len - poff);
left_to_copy = cop;
while (left_to_copy) {
@ -814,7 +829,7 @@ ip6_frag(struct pbuf *p, struct netif *netif, const ip6_addr_t *dest)
* so that it is removed when pbuf_dechain is later called on rambuf.
*/
pbuf_cat(rambuf, newpbuf);
left_to_copy -= newpbuflen;
left_to_copy = (u16_t)(left_to_copy - newpbuflen);
if (left_to_copy) {
p = p->next;
}
@ -825,11 +840,11 @@ ip6_frag(struct pbuf *p, struct netif *netif, const ip6_addr_t *dest)
/* Set headers */
frag_hdr->_nexth = original_ip6hdr->_nexth;
frag_hdr->reserved = 0;
frag_hdr->_fragment_offset = lwip_htons((fragment_offset & IP6_FRAG_OFFSET_MASK) | (last ? 0 : IP6_FRAG_MORE_FLAG));
frag_hdr->_fragment_offset = lwip_htons((u16_t)((fragment_offset & IP6_FRAG_OFFSET_MASK) | (last ? 0 : IP6_FRAG_MORE_FLAG)));
frag_hdr->_identification = lwip_htonl(identification);
IP6H_NEXTH_SET(ip6hdr, IP6_NEXTH_FRAGMENT);
IP6H_PLEN_SET(ip6hdr, cop + IP6_FRAG_HLEN);
IP6H_PLEN_SET(ip6hdr, (u16_t)(cop + IP6_FRAG_HLEN));
/* No need for separate header pbuf - we allowed room for it in rambuf
* when allocated.
@ -845,8 +860,8 @@ ip6_frag(struct pbuf *p, struct netif *netif, const ip6_addr_t *dest)
*/
pbuf_free(rambuf);
left -= cop;
fragment_offset += cop;
left = (u16_t)(left - cop);
fragment_offset = (u16_t)(fragment_offset + cop);
}
return ERR_OK;
}

8
src/core/ipv6/mld6.c
View File

@ -509,20 +509,20 @@ mld6_tmr(void)
*
* @param group the mld_group for which "delaying" membership report
* should be sent
* @param maxresp the max resp delay provided in the query
* @param maxresp_in the max resp delay provided in the query
*/
static void
mld6_delayed_report(struct mld_group *group, u16_t maxresp)
mld6_delayed_report(struct mld_group *group, u16_t maxresp_in)
{
/* Convert maxresp from milliseconds to tmr ticks */
maxresp = maxresp / MLD6_TMR_INTERVAL;
u16_t maxresp = maxresp_in / MLD6_TMR_INTERVAL;
if (maxresp == 0) {
maxresp = 1;
}
#ifdef LWIP_RAND
/* Randomize maxresp. (if LWIP_RAND is supported) */
maxresp = LWIP_RAND() % maxresp;
maxresp = (u16_t)(LWIP_RAND() % maxresp);
if (maxresp == 0) {
maxresp = 1;
}