8cabd8778c
Build fails with gcc 9:
CC slirp/ndp_table.o
slirp/ndp_table.c: In function ‘ndp_table_add’:
slirp/ndp_table.c:31:23: error: taking address of packed member of ‘struct ndpentry’ may result in an unaligned pointer value [-Werror=address-of-packed-member]
31 | if (in6_equal(&ndp_table->table[i].ip_addr, &ip_addr)) {
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
slirp/ndp_table.c: In function ‘ndp_table_search’:
slirp/ndp_table.c:75:23: error: taking address of packed member of ‘struct ndpentry’ may result in an unaligned pointer value [-Werror=address-of-packed-member]
75 | if (in6_equal(&ndp_table->table[i].ip_addr, &ip_addr)) {
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
The ndpentry structure isn't used to model on-the-wire data or anything
else that would care for the struct layout. It doesn't need to be packed
actually. Just drop SLIRP_PACKED.
Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <155143315831.102868.17515265400523392682.stgit@bahia.lan>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
275 lines
6.9 KiB
C
275 lines
6.9 KiB
C
#ifndef SLIRP_H
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#define SLIRP_H
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#ifdef _WIN32
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/* as defined in sdkddkver.h */
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#ifndef _WIN32_WINNT
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#define _WIN32_WINNT 0x0600 /* Vista */
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#endif
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/* reduces the number of implicitly included headers */
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#ifndef WIN32_LEAN_AND_MEAN
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#define WIN32_LEAN_AND_MEAN
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#endif
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# include <winsock2.h>
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# include <windows.h>
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# include <ws2tcpip.h>
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# include <sys/timeb.h>
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# include <iphlpapi.h>
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#else
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# if !defined(__HAIKU__)
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# define O_BINARY 0
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# endif
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#endif
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#ifndef _WIN32
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#include <sys/uio.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <sys/socket.h>
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#include <sys/ioctl.h>
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#endif
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#ifdef __APPLE__
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# include <sys/filio.h>
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#endif
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/* Avoid conflicting with the libc insque() and remque(), which
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have different prototypes. */
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#define insque slirp_insque
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#define remque slirp_remque
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#define quehead slirp_quehead
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#include "debug.h"
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#include "util.h"
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#include "qtailq.h"
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#include "libslirp.h"
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#include "ip.h"
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#include "ip6.h"
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#include "tcp.h"
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#include "tcp_timer.h"
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#include "tcp_var.h"
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#include "tcpip.h"
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#include "udp.h"
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#include "ip_icmp.h"
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#include "ip6_icmp.h"
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#include "mbuf.h"
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#include "sbuf.h"
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#include "socket.h"
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#include "if.h"
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#include "main.h"
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#include "misc.h"
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#include "bootp.h"
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#include "tftp.h"
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#define ARPOP_REQUEST 1 /* ARP request */
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#define ARPOP_REPLY 2 /* ARP reply */
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struct ethhdr {
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unsigned char h_dest[ETH_ALEN]; /* destination eth addr */
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unsigned char h_source[ETH_ALEN]; /* source ether addr */
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unsigned short h_proto; /* packet type ID field */
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};
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struct slirp_arphdr {
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unsigned short ar_hrd; /* format of hardware address */
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unsigned short ar_pro; /* format of protocol address */
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unsigned char ar_hln; /* length of hardware address */
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unsigned char ar_pln; /* length of protocol address */
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unsigned short ar_op; /* ARP opcode (command) */
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/*
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* Ethernet looks like this : This bit is variable sized however...
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*/
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unsigned char ar_sha[ETH_ALEN]; /* sender hardware address */
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uint32_t ar_sip; /* sender IP address */
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unsigned char ar_tha[ETH_ALEN]; /* target hardware address */
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uint32_t ar_tip; /* target IP address */
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} SLIRP_PACKED;
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#define ARP_TABLE_SIZE 16
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typedef struct ArpTable {
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struct slirp_arphdr table[ARP_TABLE_SIZE];
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int next_victim;
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} ArpTable;
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void arp_table_add(Slirp *slirp, uint32_t ip_addr, uint8_t ethaddr[ETH_ALEN]);
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bool arp_table_search(Slirp *slirp, uint32_t ip_addr,
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uint8_t out_ethaddr[ETH_ALEN]);
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struct ndpentry {
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unsigned char eth_addr[ETH_ALEN]; /* sender hardware address */
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struct in6_addr ip_addr; /* sender IP address */
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};
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#define NDP_TABLE_SIZE 16
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typedef struct NdpTable {
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struct ndpentry table[NDP_TABLE_SIZE];
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int next_victim;
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} NdpTable;
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void ndp_table_add(Slirp *slirp, struct in6_addr ip_addr,
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uint8_t ethaddr[ETH_ALEN]);
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bool ndp_table_search(Slirp *slirp, struct in6_addr ip_addr,
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uint8_t out_ethaddr[ETH_ALEN]);
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struct Slirp {
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QTAILQ_ENTRY(Slirp) entry;
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unsigned time_fasttimo;
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unsigned last_slowtimo;
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bool do_slowtimo;
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bool in_enabled, in6_enabled;
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/* virtual network configuration */
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struct in_addr vnetwork_addr;
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struct in_addr vnetwork_mask;
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struct in_addr vhost_addr;
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struct in6_addr vprefix_addr6;
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uint8_t vprefix_len;
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struct in6_addr vhost_addr6;
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struct in_addr vdhcp_startaddr;
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struct in_addr vnameserver_addr;
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struct in6_addr vnameserver_addr6;
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struct in_addr client_ipaddr;
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char client_hostname[33];
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int restricted;
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struct gfwd_list *guestfwd_list;
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/* mbuf states */
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struct quehead m_freelist;
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struct quehead m_usedlist;
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int mbuf_alloced;
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/* if states */
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struct quehead if_fastq; /* fast queue (for interactive data) */
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struct quehead if_batchq; /* queue for non-interactive data */
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bool if_start_busy; /* avoid if_start recursion */
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/* ip states */
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struct ipq ipq; /* ip reass. queue */
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uint16_t ip_id; /* ip packet ctr, for ids */
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/* bootp/dhcp states */
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BOOTPClient bootp_clients[NB_BOOTP_CLIENTS];
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char *bootp_filename;
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size_t vdnssearch_len;
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uint8_t *vdnssearch;
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char *vdomainname;
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/* tcp states */
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struct socket tcb;
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struct socket *tcp_last_so;
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tcp_seq tcp_iss; /* tcp initial send seq # */
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uint32_t tcp_now; /* for RFC 1323 timestamps */
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/* udp states */
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struct socket udb;
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struct socket *udp_last_so;
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/* icmp states */
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struct socket icmp;
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struct socket *icmp_last_so;
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/* tftp states */
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char *tftp_prefix;
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struct tftp_session tftp_sessions[TFTP_SESSIONS_MAX];
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char *tftp_server_name;
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ArpTable arp_table;
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NdpTable ndp_table;
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GRand *grand;
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void *ra_timer;
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const SlirpCb *cb;
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void *opaque;
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};
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void if_start(Slirp *);
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int get_dns_addr(struct in_addr *pdns_addr);
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int get_dns6_addr(struct in6_addr *pdns6_addr, uint32_t *scope_id);
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/* ncsi.c */
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void ncsi_input(Slirp *slirp, const uint8_t *pkt, int pkt_len);
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#ifndef _WIN32
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#include <netdb.h>
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#endif
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extern bool slirp_do_keepalive;
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#define TCP_MAXIDLE (TCPTV_KEEPCNT * TCPTV_KEEPINTVL)
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/* dnssearch.c */
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int translate_dnssearch(Slirp *s, const char ** names);
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/* cksum.c */
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int cksum(struct mbuf *m, int len);
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int ip6_cksum(struct mbuf *m);
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/* if.c */
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void if_init(Slirp *);
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void if_output(struct socket *, struct mbuf *);
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/* ip_input.c */
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void ip_init(Slirp *);
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void ip_cleanup(Slirp *);
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void ip_input(struct mbuf *);
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void ip_slowtimo(Slirp *);
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void ip_stripoptions(register struct mbuf *, struct mbuf *);
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/* ip_output.c */
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int ip_output(struct socket *, struct mbuf *);
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/* ip6_input.c */
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void ip6_init(Slirp *);
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void ip6_cleanup(Slirp *);
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void ip6_input(struct mbuf *);
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/* ip6_output */
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int ip6_output(struct socket *, struct mbuf *, int fast);
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/* tcp_input.c */
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void tcp_input(register struct mbuf *, int, struct socket *, unsigned short af);
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int tcp_mss(register struct tcpcb *, unsigned);
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/* tcp_output.c */
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int tcp_output(register struct tcpcb *);
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void tcp_setpersist(register struct tcpcb *);
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/* tcp_subr.c */
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void tcp_init(Slirp *);
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void tcp_cleanup(Slirp *);
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void tcp_template(struct tcpcb *);
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void tcp_respond(struct tcpcb *, register struct tcpiphdr *,
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register struct mbuf *, tcp_seq, tcp_seq, int, unsigned short);
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struct tcpcb * tcp_newtcpcb(struct socket *);
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struct tcpcb * tcp_close(register struct tcpcb *);
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void tcp_sockclosed(struct tcpcb *);
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int tcp_fconnect(struct socket *, unsigned short af);
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void tcp_connect(struct socket *);
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int tcp_attach(struct socket *);
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uint8_t tcp_tos(struct socket *);
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int tcp_emu(struct socket *, struct mbuf *);
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int tcp_ctl(struct socket *);
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struct tcpcb *tcp_drop(struct tcpcb *tp, int err);
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struct socket *
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slirp_find_ctl_socket(Slirp *slirp, struct in_addr guest_addr, int guest_port);
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void slirp_send_packet_all(Slirp *slirp, const void *buf, size_t len);
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#endif
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