emo/busybox
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

ifplugd: code shrink

Browse Source 
text    data     bss     dec     hex filename
 840048     453    6828  847329   cede1 busybox_old
 839915     453    6828  847196   ced5c busybox_unstripped

Signed-off-by: Maxim Kryzhanovsky <xmaks@email.cz>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Maxim Kryzhanovsky 2010-03-29 09:09:05 +02:00 committed by Denys Vlasenko
parent 603884b07e
commit fcb84c8bd2
1 changed files with 34 additions and 54 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

88
networking/ifplugd.c
View File

@ -214,7 +214,7 @@ static int network_ioctl(int request, void* data, const char *errmsg)
{ {
int r = ioctl(ioctl_fd, request, data); int r = ioctl(ioctl_fd, request, data);
if (r < 0 && errmsg) if (r < 0 && errmsg)
bb_perror_msg(errmsg); bb_perror_msg("%s failed", errmsg);
return r; return r;
} }
@ -239,7 +239,7 @@ static void up_iface(void)
return; return;
set_ifreq_to_ifname(&ifrequest); set_ifreq_to_ifname(&ifrequest);
if (network_ioctl(SIOCGIFFLAGS, &ifrequest, "can't get interface flags") < 0) { if (network_ioctl(SIOCGIFFLAGS, &ifrequest, "getting interface flags") < 0) {
G.iface_exists = 0; G.iface_exists = 0;
return; return;
} }
@ -248,7 +248,7 @@ static void up_iface(void)
ifrequest.ifr_flags |= IFF_UP; ifrequest.ifr_flags |= IFF_UP;
/* Let user know we mess up with interface */ /* Let user know we mess up with interface */
bb_error_msg("upping interface"); bb_error_msg("upping interface");
if (network_ioctl(SIOCSIFFLAGS, &ifrequest, "can't set interface flags") < 0) if (network_ioctl(SIOCSIFFLAGS, &ifrequest, "setting interface flags") < 0)
xfunc_die(); xfunc_die();
} }
@ -307,13 +307,13 @@ static smallint detect_link_mii(void)
set_ifreq_to_ifname(&ifreq); set_ifreq_to_ifname(&ifreq);
if (network_ioctl(SIOCGMIIPHY, &ifreq, "SIOCGMIIPHY failed") < 0) { if (network_ioctl(SIOCGMIIPHY, &ifreq, "SIOCGMIIPHY") < 0) {
return IFSTATUS_ERR; return IFSTATUS_ERR;
} }
mii->reg_num = 1; mii->reg_num = 1;
if (network_ioctl(SIOCGMIIREG, &ifreq, "SIOCGMIIREG failed") < 0) { if (network_ioctl(SIOCGMIIREG, &ifreq, "SIOCGMIIREG") < 0) {
return IFSTATUS_ERR; return IFSTATUS_ERR;
} }
@ -327,13 +327,13 @@ static smallint detect_link_priv(void)
set_ifreq_to_ifname(&ifreq); set_ifreq_to_ifname(&ifreq);
if (network_ioctl(SIOCDEVPRIVATE, &ifreq, "SIOCDEVPRIVATE failed") < 0) { if (network_ioctl(SIOCDEVPRIVATE, &ifreq, "SIOCDEVPRIVATE") < 0) {
return IFSTATUS_ERR; return IFSTATUS_ERR;
} }
mii->reg_num = 1; mii->reg_num = 1;
if (network_ioctl(SIOCDEVPRIVATE+1, &ifreq, "SIOCDEVPRIVATE+1 failed") < 0) { if (network_ioctl(SIOCDEVPRIVATE+1, &ifreq, "SIOCDEVPRIVATE+1") < 0) {
return IFSTATUS_ERR; return IFSTATUS_ERR;
} }
@ -350,7 +350,7 @@ static smallint detect_link_ethtool(void)
edata.cmd = ETHTOOL_GLINK; edata.cmd = ETHTOOL_GLINK;
ifreq.ifr_data = (void*) &edata; ifreq.ifr_data = (void*) &edata;
if (network_ioctl(SIOCETHTOOL, &ifreq, "ETHTOOL_GLINK failed") < 0) { if (network_ioctl(SIOCETHTOOL, &ifreq, "ETHTOOL_GLINK") < 0) {
return IFSTATUS_ERR; return IFSTATUS_ERR;
} }
@ -363,7 +363,7 @@ static smallint detect_link_iff(void)
set_ifreq_to_ifname(&ifreq); set_ifreq_to_ifname(&ifreq);
if (network_ioctl(SIOCGIFFLAGS, &ifreq, "SIOCGIFFLAGS failed") < 0) { if (network_ioctl(SIOCGIFFLAGS, &ifreq, "SIOCGIFFLAGS") < 0) {
return IFSTATUS_ERR; return IFSTATUS_ERR;
} }
@ -381,20 +381,21 @@ static smallint detect_link_iff(void)
static smallint detect_link_wlan(void) static smallint detect_link_wlan(void)
{ {
int i;
struct iwreq iwrequest; struct iwreq iwrequest;
uint8_t mac[ETH_ALEN]; uint8_t mac[ETH_ALEN];
memset(&iwrequest, 0, sizeof(struct iwreq)); memset(&iwrequest, 0, sizeof(iwrequest));
strncpy_IFNAMSIZ(iwrequest.ifr_ifrn.ifrn_name, G.iface); strncpy_IFNAMSIZ(iwrequest.ifr_ifrn.ifrn_name, G.iface);
if (network_ioctl(SIOCGIWAP, &iwrequest, "SIOCGIWAP failed") < 0) { if (network_ioctl(SIOCGIWAP, &iwrequest, "SIOCGIWAP") < 0) {
return IFSTATUS_ERR; return IFSTATUS_ERR;
} }
memcpy(mac, &(iwrequest.u.ap_addr.sa_data), ETH_ALEN); memcpy(mac, &iwrequest.u.ap_addr.sa_data, ETH_ALEN);
if (mac[0] == 0xFF || mac[0] == 0x44 || mac[0] == 0x00) { if (mac[0] == 0xFF || mac[0] == 0x44 || mac[0] == 0x00) {
for (int i = 1; i < ETH_ALEN; ++i) { for (i = 1; i < ETH_ALEN; ++i) {
if (mac[i] != mac[0]) if (mac[i] != mac[0])
return IFSTATUS_UP; return IFSTATUS_UP;
} }
@ -406,7 +407,17 @@ static smallint detect_link_wlan(void)
static smallint detect_link_auto(void) static smallint detect_link_auto(void)
{ {
const char *method; static const struct {
const char *name;
smallint (*func)(void);
} method[] = {
{ "SIOCETHTOOL" , &detect_link_ethtool },
{ "SIOCGMIIPHY" , &detect_link_mii },
{ "SIOCDEVPRIVATE" , &detect_link_priv },
{ "wireless extension", &detect_link_wlan },
{ "IFF_RUNNING" , &detect_link_iff },
};
int i;
smallint iface_status; smallint iface_status;
smallint sv_logmode; smallint sv_logmode;
@ -417,48 +428,17 @@ static smallint detect_link_auto(void)
} }
sv_logmode = logmode; sv_logmode = logmode;
logmode = LOGMODE_NONE; for (i = 0; i < ARRAY_SIZE(method); i++) {
logmode = LOGMODE_NONE;
iface_status = detect_link_ethtool(); iface_status = method[i].func();
if (iface_status != IFSTATUS_ERR) {
G.cached_detect_link_func = detect_link_ethtool;
method = "SIOCETHTOOL";
found_method:
logmode = sv_logmode; logmode = sv_logmode;
bb_error_msg("using %s detection mode", method); if (iface_status != IFSTATUS_ERR) {
return iface_status; G.cached_detect_link_func = method[i].func;
bb_error_msg("using %s detection mode", method[i].name);
break;
}
} }
return iface_status;
iface_status = detect_link_mii();
if (iface_status != IFSTATUS_ERR) {
G.cached_detect_link_func = detect_link_mii;
method = "SIOCGMIIPHY";
goto found_method;
}
iface_status = detect_link_priv();
if (iface_status != IFSTATUS_ERR) {
G.cached_detect_link_func = detect_link_priv;
method = "SIOCDEVPRIVATE";
goto found_method;
}
iface_status = detect_link_wlan();
if (iface_status != IFSTATUS_ERR) {
G.cached_detect_link_func = detect_link_wlan;
method = "wireless extension";
goto found_method;
}
iface_status = detect_link_iff();
if (iface_status != IFSTATUS_ERR) {
G.cached_detect_link_func = detect_link_iff;
method = "IFF_RUNNING";
goto found_method;
}
logmode = sv_logmode;
return iface_status; /* IFSTATUS_ERR */
} }
static smallint detect_link(void) static smallint detect_link(void)