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esp-link
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improve hostname and static IP config

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pull/25/head
Thorsten von Eicken 10 years ago
parent d679340035
commit 666cb104ee
4 changed files with 81 additions and 47 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
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  1. 1
      include/espmissingincludes.h
  2. 87
      user/cgiwifi.c
  3. 11
      user/config.c
  4. 3
      user/config.h

1
include/espmissingincludes.h
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@ -10,6 +10,7 @@
typedef struct espconn espconn;
bool wifi_station_set_hostname(char *);
char *wifi_station_get_hostname(void);
int atoi(const char *nptr);

87
user/cgiwifi.c
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@ -348,13 +348,37 @@ static void ICACHE_FLASH_ATTR debugIP() {
os_printf("\"ip\": \"%d.%d.%d.%d\"\n", IP2STR(&info.ip.addr));
os_printf("\"netmask\": \"%d.%d.%d.%d\"\n", IP2STR(&info.netmask.addr));
os_printf("\"gateway\": \"%d.%d.%d.%d\"\n", IP2STR(&info.gw.addr));
os_printf("\"hostname\": \"%s\"", flashConfig.hostname);
os_printf("\"hostname\": \"%s\"\n", wifi_station_get_hostname());
} else {
os_printf("\"ip\": \"-none-\"\n");
}
}
#endif
// configure Wifi, specifically DHCP vs static IP address based on flash config
static void ICACHE_FLASH_ATTR configWifiIP() {
if (flashConfig.staticip == 0) {
// let's DHCP!
wifi_station_set_hostname(flashConfig.hostname);
if (wifi_station_dhcpc_status() == DHCP_STARTED)
wifi_station_dhcpc_stop();
wifi_station_dhcpc_start();
os_printf("Wifi uses DHCP, hostname=%s\n", flashConfig.hostname);
} else {
// no DHCP, we got static network config!
wifi_station_dhcpc_stop();
struct ip_info ipi;
ipi.ip.addr = flashConfig.staticip;
ipi.netmask.addr = flashConfig.netmask;
ipi.gw.addr = flashConfig.gateway;
wifi_set_ip_info(0, &ipi);
os_printf("Wifi uses static IP %d.%d.%d.%d\n", IP2STR(&ipi.ip.addr));
}
#ifdef DEBUGIP
debugIP();
#endif
}
// Change special settings
int ICACHE_FLASH_ATTR cgiWiFiSpecial(HttpdConnData *connData) {
char hostname[32];
@ -370,46 +394,49 @@ int ICACHE_FLASH_ATTR cgiWiFiSpecial(HttpdConnData *connData) {
int nl = httpdFindArg(connData->getArgs, "netmask", netmask, sizeof(netmask));
int gl = httpdFindArg(connData->getArgs, "gateway", gateway, sizeof(gateway));
if (hl >= 0 && sl >= 0 && nl >= 0 && gl >= 0) {
if (!(hl >= 0 && sl >= 0 && nl >= 0 && gl >= 0)) {
jsonHeader(connData, 400);
httpdSend(connData, "Request is missing fields", -1);
return HTTPD_CGI_DONE;
}
char url[64]; // redirect URL
if (sl > 0) {
// static IP overrides hostname (HDCP stuff)
wifi_station_dhcpc_stop();
// parse static IP params
struct ip_info ipi;
bool ok = parse_ip(staticip, &ipi.ip);
if (nl > 0) ok = ok && parse_ip(netmask, &ipi.netmask);
else IP4_ADDR(&ipi.netmask, 255, 255, 255, 0);
if (gl > 0) ok = ok && parse_ip(gateway, &ipi.gw);
else ipi.gw.addr = 0;
if (ok) {
os_printf("Setting static IP: %s\n", staticip);
ok = wifi_set_ip_info(0, &ipi);
if (ok) os_printf("Static IP set: %s\n", staticip);
#ifdef DEBUGIP
debugIP();
#endif
jsonHeader(connData, ok ? 200: 400);
if (!ok) {
jsonHeader(connData, 400);
httpdSend(connData, "Cannot parse static IP config", -1);
return HTTPD_CGI_DONE;
}
// save the params in flash
flashConfig.staticip = ipi.ip.addr;
flashConfig.netmask = ipi.netmask.addr;
flashConfig.gateway = ipi.gw.addr;
// construct redirect URL
os_sprintf(url, "{\"url\": \"http://%d.%d.%d.%d\"}", IP2STR(&ipi.ip));
} else {
// no static IP, set hostname
if (hl == 0) os_strcpy(hostname, "esp-link");
if (wifi_station_dhcpc_status() == DHCP_STARTED)
wifi_station_dhcpc_stop();
bool hok = wifi_station_set_hostname(hostname);
if (hok) {
flashConfig.staticip = 0;
os_strcpy(flashConfig.hostname, hostname);
hok = hok && configSave();
}
hok = hok && wifi_station_dhcpc_start();
if (hok) os_printf("DHCP hostname set: %s\n", hostname);
jsonHeader(connData, hok ? 200 : 400);
if (!hok) httpdSend(connData, "Error setting hostname or starting DHCP", -1);
return HTTPD_CGI_DONE;
}
os_sprintf(url, "{\"url\": \"http://%s\"}", hostname);
}
jsonHeader(connData, 400);
httpdSend(connData, "Cannot parse hostname or staticip", -1);
configSave(); // ignore error...
// schedule change-over
os_timer_disarm(&reassTimer);
os_timer_setfn(&reassTimer, configWifiIP, NULL);
os_timer_arm(&reassTimer, 1000, 0);
// return redirect info
jsonHeader(connData, 200);
httpdSend(connData, url, -1);
return HTTPD_CGI_DONE;
}
@ -485,10 +512,11 @@ int ICACHE_FLASH_ATTR printWifiInfo(char *buff) {
len += os_sprintf(buff+len, ", \"ip\": \"%d.%d.%d.%d\"", IP2STR(&info.ip.addr));
len += os_sprintf(buff+len, ", \"netmask\": \"%d.%d.%d.%d\"", IP2STR(&info.netmask.addr));
len += os_sprintf(buff+len, ", \"gateway\": \"%d.%d.%d.%d\"", IP2STR(&info.gw.addr));
len += os_sprintf(buff+len, ", \"hostname\": \"%s\"", flashConfig.hostname);
len += os_sprintf(buff+len, ", \"hostname\": \"%s\"", wifi_station_get_hostname());
} else {
len += os_sprintf(buff+len, ", \"ip\": \"-none-\"");
}
len += os_sprintf(buff+len, ", \"staticip\": \"%d.%d.%d.%d\"", IP2STR(&flashConfig.staticip));
return len;
}
@ -546,10 +574,11 @@ int ICACHE_FLASH_ATTR cgiWifiInfo(HttpdConnData *connData) {
// Init the wireless, which consists of setting a timer if we expect to connect to an AP
// so we can revert to STA+AP mode if we can't connect.
void ICACHE_FLASH_ATTR wifiInit() {
wifi_station_set_hostname(flashConfig.hostname);
wifi_set_phy_mode(2);
int x = wifi_get_opmode() & 0x3;
os_printf("Wifi init, mode=%s\n", wifiMode[x]);
wifi_set_phy_mode(2);
configWifiIP();
wifi_set_event_handler_cb(wifiHandleEventCb);
// check on the wifi in a few seconds to see whether we need to switch mode
os_timer_disarm(&resetTimer);

11
user/config.c
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@ -11,9 +11,12 @@ FlashConfig flashDefault = {
33, 0,
MCU_RESET_PIN, MCU_ISP_PIN, LED_CONN_PIN, LED_SERIAL_PIN,
115200,
"esp-link\0 ",
"esp-link\0 ", // hostname
0, 0x00ffffff, 0, // static ip, netmask, gateway
};
#define FLASH_MAGIC (0xaa55aa55)
#define FLASH_ADDR (0x3E000)
#define FLASH_SECT (4096)
static int flash_pri; // primary flash sector (0 or 1, or -1 for error)
@ -28,7 +31,7 @@ bool ICACHE_FLASH_ATTR configSave(void) {
return false; // no harm done, give up
// write primary with incorrect seq
fc.seq = 0xffffffff;
fc.crc = 0x55aa55aa;
fc.crc = FLASH_MAGIC;
if (spi_flash_write(addr, (void *)&fc, sizeof(FlashConfig)) != SPI_FLASH_RESULT_OK)
return false; // no harm done, give up
// fill in correct seq
@ -77,8 +80,8 @@ bool ICACHE_FLASH_ATTR configRestore(void) {
}
static uint32_t ICACHE_FLASH_ATTR selectPrimary(FlashConfig *fc0, FlashConfig *fc1) {
bool fc0_crc_ok = fc0->crc == 0x55aa55aa && fc0->seq != 0xffffffff; // need real crc checksum...
bool fc1_crc_ok = fc1->crc == 0x55aa55aa && fc1->seq != 0xffffffff; // need real crc checksum...
bool fc0_crc_ok = fc0->crc == FLASH_MAGIC && fc0->seq != 0xffffffff; // need real crc checksum...
bool fc1_crc_ok = fc1->crc == FLASH_MAGIC && fc1->seq != 0xffffffff; // need real crc checksum...
if (fc0_crc_ok)
if (!fc1_crc_ok || fc0->seq >= fc1->seq)
return 0; // use first sector as primary

3
user/config.h
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@ -6,7 +6,8 @@ typedef struct {
uint32_t crc; // FlashConfig crc
int8_t reset_pin, isp_pin, conn_led_pin, ser_led_pin;
int32_t baud_rate;
char hostname[32];
char hostname[32]; // if using DHCP
uint32_t staticip, netmask, gateway; // using DHCP if staticip==0
} FlashConfig;
extern FlashConfig flashConfig;

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