diff options
Diffstat (limited to 'net')
| -rw-r--r-- | net/colo-compare.c | 11 | ||||
| -rw-r--r-- | net/colo.c | 1 | ||||
| -rw-r--r-- | net/colo.h | 7 | ||||
| -rw-r--r-- | net/filter-rewriter.c | 9 | ||||
| -rw-r--r-- | net/slirp.c | 61 | ||||
| -rw-r--r-- | net/util.h | 55 |
6 files changed, 99 insertions, 45 deletions
diff --git a/net/colo-compare.c b/net/colo-compare.c index 9156ab3349..3e515f3023 100644 --- a/net/colo-compare.c +++ b/net/colo-compare.c @@ -30,6 +30,7 @@ #include "net/colo-compare.h" #include "migration/colo.h" #include "migration/migration.h" +#include "util.h" #define TYPE_COLO_COMPARE "colo-compare" #define COLO_COMPARE(obj) \ @@ -129,19 +130,19 @@ static int compare_chr_send(CompareState *s, static gint seq_sorter(Packet *a, Packet *b, gpointer data) { - struct tcphdr *atcp, *btcp; + struct tcp_hdr *atcp, *btcp; - atcp = (struct tcphdr *)(a->transport_header); - btcp = (struct tcphdr *)(b->transport_header); + atcp = (struct tcp_hdr *)(a->transport_header); + btcp = (struct tcp_hdr *)(b->transport_header); return ntohl(atcp->th_seq) - ntohl(btcp->th_seq); } static void fill_pkt_tcp_info(void *data, uint32_t *max_ack) { Packet *pkt = data; - struct tcphdr *tcphd; + struct tcp_hdr *tcphd; - tcphd = (struct tcphdr *)pkt->transport_header; + tcphd = (struct tcp_hdr *)pkt->transport_header; pkt->tcp_seq = ntohl(tcphd->th_seq); pkt->tcp_ack = ntohl(tcphd->th_ack); diff --git a/net/colo.c b/net/colo.c index 49176bf07b..8196b35837 100644 --- a/net/colo.c +++ b/net/colo.c @@ -15,6 +15,7 @@ #include "qemu/osdep.h" #include "trace.h" #include "colo.h" +#include "util.h" uint32_t connection_key_hash(const void *opaque) { diff --git a/net/colo.h b/net/colo.h index 11c5226488..b21c6830b5 100644 --- a/net/colo.h +++ b/net/colo.h @@ -15,10 +15,9 @@ #ifndef QEMU_COLO_PROXY_H #define QEMU_COLO_PROXY_H -#include "slirp/slirp.h" #include "qemu/jhash.h" #include "qemu/timer.h" -#include "slirp/tcp.h" +#include "net/eth.h" #define HASHTABLE_MAX_SIZE 16384 @@ -81,10 +80,10 @@ typedef struct Connection { /* the maximum of acknowledgement number in secondary_list queue */ uint32_t sack; /* offset = secondary_seq - primary_seq */ - tcp_seq offset; + uint32_t offset; int tcp_state; /* TCP FSM state */ - tcp_seq fin_ack_seq; /* the seq of 'fin=1,ack=1' */ + uint32_t fin_ack_seq; /* the seq of 'fin=1,ack=1' */ } Connection; uint32_t connection_key_hash(const void *opaque); diff --git a/net/filter-rewriter.c b/net/filter-rewriter.c index 2e26839bc2..b464abe5e8 100644 --- a/net/filter-rewriter.c +++ b/net/filter-rewriter.c @@ -22,6 +22,7 @@ #include "net/checksum.h" #include "net/colo.h" #include "migration/colo.h" +#include "util.h" #define FILTER_COLO_REWRITER(obj) \ OBJECT_CHECK(RewriterState, (obj), TYPE_FILTER_REWRITER) @@ -73,9 +74,9 @@ static int handle_primary_tcp_pkt(RewriterState *rf, Connection *conn, Packet *pkt, ConnectionKey *key) { - struct tcphdr *tcp_pkt; + struct tcp_hdr *tcp_pkt; - tcp_pkt = (struct tcphdr *)pkt->transport_header; + tcp_pkt = (struct tcp_hdr *)pkt->transport_header; if (trace_event_get_state_backends(TRACE_COLO_FILTER_REWRITER_DEBUG)) { trace_colo_filter_rewriter_pkt_info(__func__, inet_ntoa(pkt->ip->ip_src), inet_ntoa(pkt->ip->ip_dst), @@ -176,9 +177,9 @@ static int handle_secondary_tcp_pkt(RewriterState *rf, Connection *conn, Packet *pkt, ConnectionKey *key) { - struct tcphdr *tcp_pkt; + struct tcp_hdr *tcp_pkt; - tcp_pkt = (struct tcphdr *)pkt->transport_header; + tcp_pkt = (struct tcp_hdr *)pkt->transport_header; if (trace_event_get_state_backends(TRACE_COLO_FILTER_REWRITER_DEBUG)) { trace_colo_filter_rewriter_pkt_info(__func__, diff --git a/net/slirp.c b/net/slirp.c index 38ae65e4a9..f98425ee9f 100644 --- a/net/slirp.c +++ b/net/slirp.c @@ -23,6 +23,7 @@ */ #include "qemu/osdep.h" +#include "qemu/log.h" #include "net/slirp.h" @@ -37,12 +38,12 @@ #include "qemu/error-report.h" #include "qemu/sockets.h" #include "slirp/libslirp.h" -#include "slirp/ip6.h" #include "chardev/char-fe.h" #include "sysemu/sysemu.h" #include "qemu/cutils.h" #include "qapi/error.h" #include "qapi/qmp/qdict.h" +#include "util.h" static int get_str_sep(char *buf, int buf_size, const char **pp, int sep) { @@ -99,7 +100,7 @@ static void slirp_smb_cleanup(SlirpState *s); static inline void slirp_smb_cleanup(SlirpState *s) { } #endif -void slirp_output(void *opaque, const uint8_t *pkt, int pkt_len) +static void net_slirp_output(void *opaque, const uint8_t *pkt, int pkt_len) { SlirpState *s = opaque; @@ -140,6 +141,22 @@ static NetClientInfo net_slirp_info = { .cleanup = net_slirp_cleanup, }; +static void net_slirp_guest_error(const char *msg) +{ + qemu_log_mask(LOG_GUEST_ERROR, "%s", msg); +} + +static int64_t net_slirp_clock_get_ns(void) +{ + return qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); +} + +static const SlirpCb slirp_cb = { + .output = net_slirp_output, + .guest_error = net_slirp_guest_error, + .clock_get_ns = net_slirp_clock_get_ns, +}; + static int net_slirp_init(NetClientState *peer, const char *model, const char *name, int restricted, bool ipv4, const char *vnetwork, const char *vhost, @@ -279,17 +296,6 @@ static int net_slirp_init(NetClientState *peer, const char *model, } #endif -#if defined(_WIN32) && (_WIN32_WINNT < 0x0600) - /* No inet_pton helper before Vista... */ - if (vprefix6) { - /* Unsupported */ - error_setg(errp, "IPv6 prefix not supported"); - return -1; - } - memset(&ip6_prefix, 0, sizeof(ip6_prefix)); - ip6_prefix.s6_addr[0] = 0xfe; - ip6_prefix.s6_addr[1] = 0xc0; -#else if (!vprefix6) { vprefix6 = "fec0::"; } @@ -297,7 +303,6 @@ static int net_slirp_init(NetClientState *peer, const char *model, error_setg(errp, "Failed to parse IPv6 prefix"); return -1; } -#endif if (!vprefix6_len) { vprefix6_len = 64; @@ -309,10 +314,6 @@ static int net_slirp_init(NetClientState *peer, const char *model, } if (vhost6) { -#if defined(_WIN32) && (_WIN32_WINNT < 0x0600) - error_setg(errp, "IPv6 host not supported"); - return -1; -#else if (!inet_pton(AF_INET6, vhost6, &ip6_host)) { error_setg(errp, "Failed to parse IPv6 host"); return -1; @@ -321,17 +322,12 @@ static int net_slirp_init(NetClientState *peer, const char *model, error_setg(errp, "IPv6 Host doesn't belong to network"); return -1; } -#endif } else { ip6_host = ip6_prefix; ip6_host.s6_addr[15] |= 2; } if (vnameserver6) { -#if defined(_WIN32) && (_WIN32_WINNT < 0x0600) - error_setg(errp, "IPv6 DNS not supported"); - return -1; -#else if (!inet_pton(AF_INET6, vnameserver6, &ip6_dns)) { error_setg(errp, "Failed to parse IPv6 DNS"); return -1; @@ -340,7 +336,6 @@ static int net_slirp_init(NetClientState *peer, const char *model, error_setg(errp, "IPv6 DNS doesn't belong to network"); return -1; } -#endif } else { ip6_dns = ip6_prefix; ip6_dns.s6_addr[15] |= 3; @@ -378,7 +373,8 @@ static int net_slirp_init(NetClientState *peer, const char *model, ipv6, ip6_prefix, vprefix6_len, ip6_host, vhostname, tftp_server_name, tftp_export, bootfile, dhcp, - dns, ip6_dns, dnssearch, vdomainname, s); + dns, ip6_dns, dnssearch, vdomainname, + &slirp_cb, s); QTAILQ_INSERT_TAIL(&slirp_stacks, s, entry); for (config = slirp_configs; config; config = config->next) { @@ -708,8 +704,8 @@ static int slirp_smb(SlirpState* s, const char *exported_dir, CONFIG_SMBD_COMMAND, s->smb_dir, smb_conf); g_free(smb_conf); - if (slirp_add_exec(s->slirp, 0, smb_cmdline, &vserver_addr, 139) < 0 || - slirp_add_exec(s->slirp, 0, smb_cmdline, &vserver_addr, 445) < 0) { + if (slirp_add_exec(s->slirp, NULL, smb_cmdline, &vserver_addr, 139) < 0 || + slirp_add_exec(s->slirp, NULL, smb_cmdline, &vserver_addr, 445) < 0) { slirp_smb_cleanup(s); g_free(smb_cmdline); error_setg(errp, "Conflicting/invalid smbserver address"); @@ -773,7 +769,7 @@ static int slirp_guestfwd(SlirpState *s, const char *config_str, Error **errp) snprintf(buf, sizeof(buf), "guestfwd.tcp.%d", port); if ((strlen(p) > 4) && !strncmp(p, "cmd:", 4)) { - if (slirp_add_exec(s->slirp, 0, &p[4], &server, port) < 0) { + if (slirp_add_exec(s->slirp, NULL, &p[4], &server, port) < 0) { error_setg(errp, "Conflicting/invalid host:port in guest " "forwarding rule '%s'", config_str); return -1; @@ -800,7 +796,7 @@ static int slirp_guestfwd(SlirpState *s, const char *config_str, Error **errp) return -1; } - if (slirp_add_exec(s->slirp, 3, &fwd->hd, &server, port) < 0) { + if (slirp_add_exec(s->slirp, &fwd->hd, NULL, &server, port) < 0) { error_setg(errp, "Conflicting/invalid host:port in guest " "forwarding rule '%s'", config_str); g_free(fwd); @@ -827,10 +823,11 @@ void hmp_info_usernet(Monitor *mon, const QDict *qdict) QTAILQ_FOREACH(s, &slirp_stacks, entry) { int id; bool got_hub_id = net_hub_id_for_client(&s->nc, &id) == 0; - monitor_printf(mon, "Hub %d (%s):\n", + char *info = slirp_connection_info(s->slirp); + monitor_printf(mon, "Hub %d (%s):\n%s", got_hub_id ? id : -1, - s->nc.name); - slirp_connection_info(s->slirp, mon); + s->nc.name, info); + g_free(info); } } diff --git a/net/util.h b/net/util.h index 60b73d372d..358185fd50 100644 --- a/net/util.h +++ b/net/util.h @@ -26,6 +26,61 @@ #define QEMU_NET_UTIL_H +/* + * Structure of an internet header, naked of options. + */ +struct ip { +#ifdef HOST_WORDS_BIGENDIAN + uint8_t ip_v:4, /* version */ + ip_hl:4; /* header length */ +#else + uint8_t ip_hl:4, /* header length */ + ip_v:4; /* version */ +#endif + uint8_t ip_tos; /* type of service */ + uint16_t ip_len; /* total length */ + uint16_t ip_id; /* identification */ + uint16_t ip_off; /* fragment offset field */ +#define IP_DF 0x4000 /* don't fragment flag */ +#define IP_MF 0x2000 /* more fragments flag */ +#define IP_OFFMASK 0x1fff /* mask for fragmenting bits */ + uint8_t ip_ttl; /* time to live */ + uint8_t ip_p; /* protocol */ + uint16_t ip_sum; /* checksum */ + struct in_addr ip_src, ip_dst; /* source and dest address */ +} QEMU_PACKED; + +static inline bool in6_equal_net(const struct in6_addr *a, + const struct in6_addr *b, + int prefix_len) +{ + if (memcmp(a, b, prefix_len / 8) != 0) { + return 0; + } + + if (prefix_len % 8 == 0) { + return 1; + } + + return a->s6_addr[prefix_len / 8] >> (8 - (prefix_len % 8)) + == b->s6_addr[prefix_len / 8] >> (8 - (prefix_len % 8)); +} + +#define TCPS_CLOSED 0 /* closed */ +#define TCPS_LISTEN 1 /* listening for connection */ +#define TCPS_SYN_SENT 2 /* active, have sent syn */ +#define TCPS_SYN_RECEIVED 3 /* have send and received syn */ +/* states < TCPS_ESTABLISHED are those where connections not established */ +#define TCPS_ESTABLISHED 4 /* established */ +#define TCPS_CLOSE_WAIT 5 /* rcvd fin, waiting for close */ +/* states > TCPS_CLOSE_WAIT are those where user has closed */ +#define TCPS_FIN_WAIT_1 6 /* have closed, sent fin */ +#define TCPS_CLOSING 7 /* closed xchd FIN; await FIN ACK */ +#define TCPS_LAST_ACK 8 /* had fin and close; await FIN ACK */ +/* states > TCPS_CLOSE_WAIT && < TCPS_FIN_WAIT_2 await ACK of FIN */ +#define TCPS_FIN_WAIT_2 9 /* have closed, fin is acked */ +#define TCPS_TIME_WAIT 10 /* in 2*msl quiet wait after close */ + int net_parse_macaddr(uint8_t *macaddr, const char *p); #endif /* QEMU_NET_UTIL_H */ |