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work on -Wconversion...

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This commit is contained in:
goldsimon 2017-07-06 11:22:38 +02:00
parent 9d61e36466
commit 694fc7e472
4 changed files with 46 additions and 35 deletions
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71
src/core/ipv6/ip6.c
View File

@ -509,7 +509,7 @@ ip6_input(struct pbuf *p, struct netif *inp)
struct ip6_hdr *ip6hdr;
struct netif *netif;
u8_t nexth;
u16_t hlen; /* the current header length */
u16_t hlen, hlen_tot; /* the current header length */
#if 0 /*IP_ACCEPT_LINK_LAYER_ADDRESSING*/
@todo
int check_ip_src=1;
@ -536,7 +536,7 @@ ip6_input(struct pbuf *p, struct netif *inp)
#endif
/* header length exceeds first pbuf length, or ip length exceeds total pbuf length? */
if ((IP6_HLEN > p->len) || ((IP6H_PLEN(ip6hdr) + IP6_HLEN) > p->tot_len)) {
if ((IP6_HLEN > p->len) || (IP6H_PLEN(ip6hdr) > (p->tot_len - IP6_HLEN))) {
if (IP6_HLEN > p->len) {
LWIP_DEBUGF(IP6_DEBUG | LWIP_DBG_LEVEL_SERIOUS,
("IPv6 header (len %"U16_F") does not fit in first pbuf (len %"U16_F"), IP packet dropped.\n",
@ -556,7 +556,7 @@ ip6_input(struct pbuf *p, struct netif *inp)
/* Trim pbuf. This should have been done at the netif layer,
* but we'll do it anyway just to be sure that its done. */
pbuf_realloc(p, IP6_HLEN + IP6H_PLEN(ip6hdr));
pbuf_realloc(p, (u16_t)(IP6_HLEN + IP6H_PLEN(ip6hdr)));
/* copy IP addresses to aligned ip6_addr_t */
ip_addr_copy_from_ip6_packed(ip_data.current_iphdr_dest, ip6hdr->dest);
@ -692,7 +692,7 @@ netif_found:
nexth = IP6H_NEXTH(ip6hdr);
/* Init header length. */
hlen = ip_data.current_ip_header_tot_len = IP6_HLEN;
hlen = hlen_tot = IP6_HLEN;
/* Move to payload. */
pbuf_header(p, -IP6_HLEN);
@ -704,8 +704,8 @@ netif_found:
case IP6_NEXTH_HOPBYHOP:
LWIP_DEBUGF(IP6_DEBUG, ("ip6_input: packet with Hop-by-Hop options header\n"));
/* Get and check the header length, while staying in packet bounds. */
if ((p->len < 8) ||
((hlen = 8 * (1 + *((u8_t *)p->payload + 1))) > p->len)) {
hlen = (u16_t)(8 * (1 + *((u8_t *)p->payload + 1)));
if ((p->len < 8) || (hlen > p->len)) {
LWIP_DEBUGF(IP6_DEBUG | LWIP_DBG_LEVEL_SERIOUS,
("IPv6 options header (hlen %"U16_F") does not fit in first pbuf (len %"U16_F"), IPv6 packet dropped.\n",
hlen, p->len));
@ -716,20 +716,20 @@ netif_found:
goto ip6_input_cleanup;
}
ip_data.current_ip_header_tot_len += hlen;
hlen_tot = (u16_t)(hlen_tot + hlen);
/* Get next header type. */
nexth = *((u8_t *)p->payload);
/* Skip over this header. */
pbuf_header(p, -(s16_t)hlen);
pbuf_header(p, (s16_t)-(s16_t)hlen);
break;
case IP6_NEXTH_DESTOPTS:
LWIP_DEBUGF(IP6_DEBUG, ("ip6_input: packet with Destination options header\n"));
/* Get and check the header length, while staying in packet bounds. */
if ((p->len < 8) ||
(hlen = 8 * (1 + *((u8_t *)p->payload + 1))) > p->len) {
hlen = (u16_t)(8 * (1 + *((u8_t *)p->payload + 1)));
if ((p->len < 8) || (hlen > p->len)) {
LWIP_DEBUGF(IP6_DEBUG | LWIP_DBG_LEVEL_SERIOUS,
("IPv6 options header (hlen %"U16_F") does not fit in first pbuf (len %"U16_F"), IPv6 packet dropped.\n",
hlen, p->len));
@ -740,20 +740,20 @@ netif_found:
goto ip6_input_cleanup;
}
ip_data.current_ip_header_tot_len += hlen;
hlen_tot = (u16_t)(hlen_tot + hlen);
/* Get next header type. */
nexth = *((u8_t *)p->payload);
/* Skip over this header. */
pbuf_header(p, -(s16_t)hlen);
pbuf_header(p, (s16_t)-(s16_t)hlen);
break;
case IP6_NEXTH_ROUTING:
LWIP_DEBUGF(IP6_DEBUG, ("ip6_input: packet with Routing header\n"));
/* Get and check the header length, while staying in packet bounds. */
if ((p->len < 8) ||
(hlen = 8 * (1 + *((u8_t *)p->payload + 1))) > p->len) {
hlen = (u16_t)(8 * (1 + *((u8_t *)p->payload + 1)));
if ((p->len < 8) || (hlen > p->len)) {
LWIP_DEBUGF(IP6_DEBUG | LWIP_DBG_LEVEL_SERIOUS,
("IPv6 options header (hlen %"U16_F") does not fit in first pbuf (len %"U16_F"), IPv6 packet dropped.\n",
hlen, p->len));
@ -768,9 +768,9 @@ netif_found:
nexth = *((u8_t *)p->payload);
/* Skip over this header. */
ip_data.current_ip_header_tot_len += hlen;
hlen_tot = (u16_t)(hlen_tot + hlen);
pbuf_header(p, -(s16_t)hlen);
pbuf_header(p, (s16_t)-(s16_t)hlen);
break;
case IP6_NEXTH_FRAGMENT:
@ -793,7 +793,7 @@ netif_found:
goto ip6_input_cleanup;
}
ip_data.current_ip_header_tot_len += hlen;
hlen_tot = (u16_t)(hlen_tot + hlen);
frag_hdr = (struct ip6_frag_hdr *)p->payload;
@ -804,11 +804,12 @@ netif_found:
if ((frag_hdr->_fragment_offset &
PP_HTONS(IP6_FRAG_OFFSET_MASK | IP6_FRAG_MORE_FLAG)) == 0) {
/* This is a 1-fragment packet. Skip this header and continue. */
pbuf_header(p, -(s16_t)hlen);
pbuf_header(p, (s16_t)-(s16_t)hlen);
} else {
#if LWIP_IPV6_REASS
/* reassemble the packet */
ip_data.current_ip_header_tot_len = hlen_tot;
p = ip6_reass(p);
/* packet not fully reassembled yet? */
if (p == NULL) {
@ -819,7 +820,7 @@ netif_found:
* Update all our variables and pointers and continue. */
ip6hdr = (struct ip6_hdr *)p->payload;
nexth = IP6H_NEXTH(ip6hdr);
hlen = ip_data.current_ip_header_tot_len = IP6_HLEN;
hlen = hlen_tot = IP6_HLEN;
pbuf_header(p, -IP6_HLEN);
#else /* LWIP_IPV6_REASS */
@ -839,19 +840,33 @@ netif_found:
}
options_done:
/* p points to IPv6 header again. */
pbuf_header_force(p, (s16_t)ip_data.current_ip_header_tot_len);
if (hlen_tot >= 0x8000) {
/* s16_t overflow */
LWIP_DEBUGF(IP6_DEBUG | LWIP_DBG_LEVEL_SERIOUS, ("ip6_input: header length overflow: %"U16_F"\n", hlen_tot));
pbuf_free(p);
IP6_STATS_INC(ip6.proterr);
IP6_STATS_INC(ip6.drop);
goto options_done;
}
/* send to upper layers */
LWIP_DEBUGF(IP6_DEBUG, ("ip6_input: \n"));
ip6_debug_print(p);
LWIP_DEBUGF(IP6_DEBUG, ("ip6_input: p->len %"U16_F" p->tot_len %"U16_F"\n", p->len, p->tot_len));
ip_data.current_ip_header_tot_len = hlen_tot;
#if LWIP_RAW
/* p points to IPv6 header again for raw_input. */
pbuf_header_force(p, (s16_t)hlen_tot);
/* raw input did not eat the packet? */
if (raw_input(p, inp) == 0)
#endif /* LWIP_RAW */
{
/* Point to payload. */
pbuf_header(p, (s16_t)-(s16_t)hlen_tot);
#else /* LWIP_RAW */
{
#endif /* LWIP_RAW */
switch (nexth) {
case IP6_NEXTH_NONE:
pbuf_free(p);
@ -861,31 +876,27 @@ options_done:
#if LWIP_UDPLITE
case IP6_NEXTH_UDPLITE:
#endif /* LWIP_UDPLITE */
/* Point to payload. */
pbuf_header(p, -(s16_t)ip_data.current_ip_header_tot_len);
udp_input(p, inp);
break;
#endif /* LWIP_UDP */
#if LWIP_TCP
case IP6_NEXTH_TCP:
/* Point to payload. */
pbuf_header(p, -(s16_t)ip_data.current_ip_header_tot_len);
tcp_input(p, inp);
break;
#endif /* LWIP_TCP */
#if LWIP_ICMP6
case IP6_NEXTH_ICMP6:
/* Point to payload. */
pbuf_header(p, -(s16_t)ip_data.current_ip_header_tot_len);
icmp6_input(p, inp);
break;
#endif /* LWIP_ICMP */
default:
#if LWIP_ICMP6
/* p points to IPv6 header again for raw_input. */
pbuf_header_force(p, (s16_t)hlen_tot);
/* send ICMP parameter problem unless it was a multicast or ICMPv6 */
if ((!ip6_addr_ismulticast(ip6_current_dest_addr())) &&
(IP6H_NEXTH(ip6hdr) != IP6_NEXTH_ICMP6)) {
icmp6_param_problem(p, ICMP6_PP_HEADER, ip_data.current_ip_header_tot_len - hlen);
icmp6_param_problem(p, ICMP6_PP_HEADER, (u32_t)(hlen_tot - hlen));
}
#endif /* LWIP_ICMP */
LWIP_DEBUGF(IP6_DEBUG | LWIP_DBG_LEVEL_SERIOUS, ("ip6_input: Unsupported transport protocol %"U16_F"\n", (u16_t)IP6H_NEXTH(ip6hdr)));
@ -1002,7 +1013,7 @@ ip6_output_if_src(struct pbuf *p, const ip6_addr_t *src, const ip6_addr_t *dest,
ip6_addr_copy_to_packed(ip6hdr->dest, *dest);
IP6H_VTCFL_SET(ip6hdr, 6, tc, 0);
IP6H_PLEN_SET(ip6hdr, p->tot_len - IP6_HLEN);
IP6H_PLEN_SET(ip6hdr, (u16_t)(p->tot_len - IP6_HLEN));
if (src == NULL) {
src = IP6_ADDR_ANY6;

2
src/core/ipv6/ip6_addr.c
View File

@ -57,7 +57,7 @@ const ip_addr_t ip6_addr_any = IPADDR6_INIT(0ul, 0ul, 0ul, 0ul);
#define isxdigit(c) (isdigit(c) || in_range(c, 'a', 'f') || in_range(c, 'A', 'F'))
#define islower(c) in_range(c, 'a', 'z')
#define isspace(c) (c == ' ' || c == '\f' || c == '\n' || c == '\r' || c == '\t' || c == '\v')
#define xchar(i) ((i) < 10 ? '0' + (i) : 'A' + (i) - 10)
#define xchar(i) ((char)((i) < 10 ? '0' + (i) : 'A' + (i) - 10))
#endif
/**

6
src/include/lwip/ip.h
View File

@ -116,7 +116,7 @@ struct ip_globals
#endif /* LWIP_IPV4 */
#if LWIP_IPV6
/** Header of the input IPv6 packet currently being processed. */
struct ip6_hdr *current_ip6_header;
const struct ip6_hdr *current_ip6_header;
#endif /* LWIP_IPV6 */
/** Total header length of current_ip4/6_header (i.e. after this, the UDP/TCP header starts) */
u16_t current_ip_header_tot_len;
@ -152,7 +152,7 @@ extern struct ip_globals ip_data;
/** Get the IPv6 header of the current packet.
* This function must only be called from a receive callback (udp_recv,
* raw_recv, tcp_accept). It will return NULL otherwise. */
#define ip6_current_header() ((const struct ip6_hdr*)(ip_data.current_ip6_header))
#define ip6_current_header() ip_data.current_ip6_header
/** Returns TRUE if the current IP input packet is IPv6, FALSE if it is IPv4 */
#define ip_current_is_v6() (ip6_current_header() != NULL)
/** Source IPv6 address of current_header */
@ -194,7 +194,7 @@ extern struct ip_globals ip_data;
/** Get the IPv6 header of the current packet.
* This function must only be called from a receive callback (udp_recv,
* raw_recv, tcp_accept). It will return NULL otherwise. */
#define ip6_current_header() ((const struct ip6_hdr*)(ip_data.current_ip6_header))
#define ip6_current_header() ip_data.current_ip6_header
/** Always returns TRUE when only supporting IPv6 only */
#define ip_current_is_v6() 1
/** Get the transport layer protocol */

2
src/include/lwip/ip6_frag.h
View File

@ -90,7 +90,7 @@ extern "C" {
struct ip6_reassdata {
struct ip6_reassdata *next;
struct pbuf *p;
struct ip6_hdr *iphdr; /* pointer to the first (original) IPv6 header */
const struct ip6_hdr *iphdr; /* pointer to the first (original) IPv6 header */
#if IPV6_FRAG_COPYHEADER
ip6_addr_p_t src; /* copy of the source address in the IP header */
ip6_addr_p_t dest; /* copy of the destination address in the IP header */