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Fix netbuf_destport() when LWIP_CHECKSUM_ON_COPY is not enabled

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This commit fixes a bug in netbuf_destport() where LWIP_NETBUF_RECVINFO is
enabled, but not LWIP_CHECKSUM_ON_COPY is enabled

The flags field is only available when LWIP_CHECKSUM_ON_COPY is enabled. In
this mode, the toport_chksum is dual functioning as storage for port and
checksum
This commit is contained in:
Joel Cunningham 2015-07-13 17:39:20 -05:00 committed by sg
parent d3217718a9
commit f77e581468
1 changed files with 4 additions and 0 deletions
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4
src/include/lwip/netbuf.h
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@ -97,7 +97,11 @@ LWIP_NETCONN_SCOPE void netbuf_first (struct netbuf *buf);
#if LWIP_NETBUF_RECVINFO
#define netbuf_destaddr(buf) (&((buf)->toaddr))
#define netbuf_set_destaddr(buf, destaddr) ip_addr_set(&((buf)->toaddr), destaddr)
#if LWIP_CHECKSUM_ON_COPY
#define netbuf_destport(buf) (((buf)->flags & NETBUF_FLAG_DESTADDR) ? (buf)->toport_chksum : 0)
#else
#define netbuf_destport(buf) ((buf)->toport_chksum)
#endif /* LWIP_CHECKSUM_ON_COPY */
#endif /* LWIP_NETBUF_RECVINFO */
#if LWIP_CHECKSUM_ON_COPY
#define netbuf_set_chksum(buf, chksum) do { (buf)->flags = NETBUF_FLAG_CHKSUM; \