diff options
Diffstat (limited to 'net.c')
| -rw-r--r-- | net.c | 131 |
1 files changed, 69 insertions, 62 deletions
diff --git a/net.c b/net.c index 2594ed73a9..7f7616b00c 100644 --- a/net.c +++ b/net.c @@ -532,6 +532,21 @@ ssize_t qemu_sendv_packet(VLANClientState *sender, const struct iovec *iov, return max_len; } +static void config_error(Monitor *mon, const char *fmt, ...) +{ + va_list ap; + + va_start(ap, fmt); + if (mon) { + monitor_vprintf(mon, fmt, ap); + } else { + fprintf(stderr, "qemu: "); + vfprintf(stderr, fmt, ap); + exit(1); + } + va_end(ap); +} + #if defined(CONFIG_SLIRP) /* slirp network adapter */ @@ -674,7 +689,7 @@ void net_slirp_redir(Monitor *mon, const char *redir_str, const char *redir_opt2 { int is_udp; char buf[256], *r; - const char *p, *errmsg; + const char *p; struct in_addr guest_addr; int host_port, guest_port; @@ -723,20 +738,12 @@ void net_slirp_redir(Monitor *mon, const char *redir_str, const char *redir_opt2 goto fail_syntax; if (slirp_redir(is_udp, host_port, guest_addr, guest_port) < 0) { - errmsg = "could not set up redirection\n"; - goto fail; + config_error(mon, "could not set up redirection '%s'\n", redir_str); } return; fail_syntax: - errmsg = "invalid redirection format\n"; - fail: - if (mon) { - monitor_printf(mon, "%s", errmsg); - } else { - fprintf(stderr, "qemu: %s", errmsg); - exit(1); - } + config_error(mon, "invalid redirection format '%s'\n", redir_str); } #ifndef _WIN32 @@ -1784,7 +1791,7 @@ static void net_dump_cleanup(VLANClientState *vc) qemu_free(s); } -static int net_dump_init(VLANState *vlan, const char *device, +static int net_dump_init(Monitor *mon, VLANState *vlan, const char *device, const char *name, const char *filename, int len) { struct pcap_file_hdr hdr; @@ -1794,7 +1801,7 @@ static int net_dump_init(VLANState *vlan, const char *device, s->fd = open(filename, O_CREAT | O_WRONLY, 0644); if (s->fd < 0) { - fprintf(stderr, "-net dump: can't open %s\n", filename); + config_error(mon, "-net dump: can't open %s\n", filename); return -1; } @@ -1809,7 +1816,7 @@ static int net_dump_init(VLANState *vlan, const char *device, hdr.linktype = 1; if (write(s->fd, &hdr, sizeof(hdr)) < sizeof(hdr)) { - perror("-net dump write error"); + config_error(mon, "-net dump write error: %s\n", strerror(errno)); close(s->fd); qemu_free(s); return -1; @@ -1884,7 +1891,7 @@ void qemu_check_nic_model_list(NICInfo *nd, const char * const *models, exit(exit_status); } -int net_client_init(const char *device, const char *p) +int net_client_init(Monitor *mon, const char *device, const char *p) { static const char * const fd_params[] = { "vlan", "name", "fd", NULL @@ -1901,7 +1908,7 @@ int net_client_init(const char *device, const char *p) vlan = qemu_find_vlan(vlan_id); if (get_param_value(buf, sizeof(buf), "name", p)) { - name = strdup(buf); + name = qemu_strdup(buf); } if (!strcmp(device, "nic")) { static const char * const nic_params[] = { @@ -1912,12 +1919,12 @@ int net_client_init(const char *device, const char *p) int idx = nic_get_free_idx(); if (check_params(buf, sizeof(buf), nic_params, p) < 0) { - fprintf(stderr, "qemu: invalid parameter '%s' in '%s'\n", - buf, p); - return -1; + config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p); + ret = -1; + goto out; } if (idx == -1 || nb_nics >= MAX_NICS) { - fprintf(stderr, "Too Many NICs\n"); + config_error(mon, "Too Many NICs\n"); ret = -1; goto out; } @@ -1932,7 +1939,7 @@ int net_client_init(const char *device, const char *p) if (get_param_value(buf, sizeof(buf), "macaddr", p)) { if (parse_macaddr(macaddr, buf) < 0) { - fprintf(stderr, "invalid syntax for ethernet address\n"); + config_error(mon, "invalid syntax for ethernet address\n"); ret = -1; goto out; } @@ -1950,8 +1957,9 @@ int net_client_init(const char *device, const char *p) } else if (!strcmp(device, "none")) { if (*p != '\0') { - fprintf(stderr, "qemu: 'none' takes no parameters\n"); - return -1; + config_error(mon, "'none' takes no parameters\n"); + ret = -1; + goto out; } /* does nothing. It is needed to signal that no network cards are wanted */ @@ -1963,9 +1971,9 @@ int net_client_init(const char *device, const char *p) "vlan", "name", "hostname", "restrict", "ip", NULL }; if (check_params(buf, sizeof(buf), slirp_params, p) < 0) { - fprintf(stderr, "qemu: invalid parameter '%s' in '%s'\n", - buf, p); - return -1; + config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p); + ret = -1; + goto out; } if (get_param_value(buf, sizeof(buf), "hostname", p)) { pstrcpy(slirp_hostname, sizeof(slirp_hostname), buf); @@ -1986,7 +1994,7 @@ int net_client_init(const char *device, const char *p) port = strtol(p, &devname, 10); devname++; if (port < 1 || port > 65535) { - fprintf(stderr, "vmchannel wrong port number\n"); + config_error(mon, "vmchannel wrong port number\n"); ret = -1; goto out; } @@ -1994,8 +2002,8 @@ int net_client_init(const char *device, const char *p) snprintf(name, 20, "vmchannel%ld", port); vmc->hd = qemu_chr_open(name, devname, NULL); if (!vmc->hd) { - fprintf(stderr, "qemu: could not open vmchannel device" - "'%s'\n", devname); + config_error(mon, "could not open vmchannel device '%s'\n", + devname); ret = -1; goto out; } @@ -2014,12 +2022,12 @@ int net_client_init(const char *device, const char *p) char ifname[64]; if (check_params(buf, sizeof(buf), tap_params, p) < 0) { - fprintf(stderr, "qemu: invalid parameter '%s' in '%s'\n", - buf, p); - return -1; + config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p); + ret = -1; + goto out; } if (get_param_value(ifname, sizeof(ifname), "ifname", p) <= 0) { - fprintf(stderr, "tap: no interface name\n"); + config_error(mon, "tap: no interface name\n"); ret = -1; goto out; } @@ -2035,9 +2043,9 @@ int net_client_init(const char *device, const char *p) vlan->nb_host_devs++; if (get_param_value(buf, sizeof(buf), "fd", p) > 0) { if (check_params(chkbuf, sizeof(chkbuf), fd_params, p) < 0) { - fprintf(stderr, "qemu: invalid parameter '%s' in '%s'\n", - chkbuf, p); - return -1; + config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p); + ret = -1; + goto out; } fd = strtol(buf, NULL, 0); fcntl(fd, F_SETFL, O_NONBLOCK); @@ -2048,9 +2056,9 @@ int net_client_init(const char *device, const char *p) "vlan", "name", "ifname", "script", "downscript", NULL }; if (check_params(chkbuf, sizeof(chkbuf), tap_params, p) < 0) { - fprintf(stderr, "qemu: invalid parameter '%s' in '%s'\n", - chkbuf, p); - return -1; + config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p); + ret = -1; + goto out; } if (get_param_value(ifname, sizeof(ifname), "ifname", p) <= 0) { ifname[0] = '\0'; @@ -2070,9 +2078,9 @@ int net_client_init(const char *device, const char *p) if (get_param_value(buf, sizeof(buf), "fd", p) > 0) { int fd; if (check_params(chkbuf, sizeof(chkbuf), fd_params, p) < 0) { - fprintf(stderr, "qemu: invalid parameter '%s' in '%s'\n", - chkbuf, p); - return -1; + config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p); + ret = -1; + goto out; } fd = strtol(buf, NULL, 0); ret = -1; @@ -2083,9 +2091,9 @@ int net_client_init(const char *device, const char *p) "vlan", "name", "listen", NULL }; if (check_params(chkbuf, sizeof(chkbuf), listen_params, p) < 0) { - fprintf(stderr, "qemu: invalid parameter '%s' in '%s'\n", - chkbuf, p); - return -1; + config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p); + ret = -1; + goto out; } ret = net_socket_listen_init(vlan, device, name, buf); } else if (get_param_value(buf, sizeof(buf), "connect", p) > 0) { @@ -2093,9 +2101,9 @@ int net_client_init(const char *device, const char *p) "vlan", "name", "connect", NULL }; if (check_params(chkbuf, sizeof(chkbuf), connect_params, p) < 0) { - fprintf(stderr, "qemu: invalid parameter '%s' in '%s'\n", - chkbuf, p); - return -1; + config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p); + ret = -1; + goto out; } ret = net_socket_connect_init(vlan, device, name, buf); } else if (get_param_value(buf, sizeof(buf), "mcast", p) > 0) { @@ -2103,13 +2111,13 @@ int net_client_init(const char *device, const char *p) "vlan", "name", "mcast", NULL }; if (check_params(chkbuf, sizeof(chkbuf), mcast_params, p) < 0) { - fprintf(stderr, "qemu: invalid parameter '%s' in '%s'\n", - chkbuf, p); - return -1; + config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p); + ret = -1; + goto out; } ret = net_socket_mcast_init(vlan, device, name, buf); } else { - fprintf(stderr, "Unknown socket options: %s\n", p); + config_error(mon, "Unknown socket options: %s\n", p); ret = -1; goto out; } @@ -2124,9 +2132,9 @@ int net_client_init(const char *device, const char *p) int vde_port, vde_mode; if (check_params(buf, sizeof(buf), vde_params, p) < 0) { - fprintf(stderr, "qemu: invalid parameter '%s' in '%s'\n", - buf, p); - return -1; + config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p); + ret = -1; + goto out; } vlan->nb_host_devs++; if (get_param_value(vde_sock, sizeof(vde_sock), "sock", p) <= 0) { @@ -2157,18 +2165,17 @@ int net_client_init(const char *device, const char *p) if (!get_param_value(buf, sizeof(buf), "file", p)) { snprintf(buf, sizeof(buf), "qemu-vlan%d.pcap", vlan_id); } - ret = net_dump_init(vlan, device, name, buf, len); + ret = net_dump_init(mon, vlan, device, name, buf, len); } else { - fprintf(stderr, "Unknown network device: %s\n", device); + config_error(mon, "Unknown network device: %s\n", device); ret = -1; goto out; } if (ret < 0) { - fprintf(stderr, "Could not initialize device '%s'\n", device); + config_error(mon, "Could not initialize device '%s'\n", device); } out: - if (name) - free(name); + qemu_free(name); return ret; } @@ -2206,7 +2213,7 @@ void net_host_device_add(Monitor *mon, const char *device, const char *opts) monitor_printf(mon, "invalid host network device %s\n", device); return; } - if (net_client_init(device, opts ? opts : "") < 0) { + if (net_client_init(mon, device, opts ? opts : "") < 0) { monitor_printf(mon, "adding host network device %s failed\n", device); } } @@ -2252,7 +2259,7 @@ int net_client_parse(const char *str) if (*p == ',') p++; - return net_client_init(device, p); + return net_client_init(NULL, device, p); } void do_info_network(Monitor *mon) |