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pc-bios/s390-ccw/net: Update code for the latest changes in SLOF

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The ip_version information now has to be stored in the filename_ip_t
structure, and there is now a common function called tftp_get_error_info()
which can be used to get the error string for a TFTP error code.
We can also get rid of some superfluous "(char *)" casts now.

Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Tested-by: Viktor Mihajlovski <mihajlov@linux.vnet.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
This commit is contained in:
Thomas Huth 2018-05-18 11:31:27 +02:00
parent 4248981d51
commit 134f0b3d7c
2 changed files with 18 additions and 70 deletions
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2
pc-bios/s390-ccw/netboot.mak
View file

@ -34,7 +34,7 @@ STDLIB_OBJS = atoi.o atol.o strtoul.o strtol.o rand.o malloc.o free.o
%.o : $(SLOF_DIR)/lib/libc/stdlib/%.c
$(call quiet-command,$(CC) $(LIBC_CFLAGS) -c -o $@ $<,"CC","$(TARGET_DIR)$@")
STDIO_OBJS = sprintf.o vfprintf.o vsnprintf.o vsprintf.o fprintf.o \
STDIO_OBJS = sprintf.o snprintf.o vfprintf.o vsnprintf.o vsprintf.o fprintf.o \
printf.o putc.o puts.o putchar.o stdchnls.o fileno.o
%.o : $(SLOF_DIR)/lib/libc/stdio/%.c
$(call quiet-command,$(CC) $(LIBC_CFLAGS) -c -o $@ $<,"CC","$(TARGET_DIR)$@")

86
pc-bios/s390-ccw/netmain.c
View file

@ -47,7 +47,6 @@ IplParameterBlock iplb __attribute__((aligned(PAGE_SIZE)));
static char cfgbuf[2048];
static SubChannelId net_schid = { .one = 1 };
static int ip_version = 4;
static uint64_t dest_timer;
static uint64_t get_timer_ms(void)
@ -100,10 +99,10 @@ static int dhcp(struct filename_ip *fn_ip, int retries)
printf("\nGiving up after %d DHCP requests\n", retries);
return -1;
}
ip_version = 4;
fn_ip->ip_version = 4;
rc = dhcpv4(NULL, fn_ip);
if (rc == -1) {
ip_version = 6;
fn_ip->ip_version = 6;
set_ipv6_address(fn_ip->fd, 0);
rc = dhcpv6(NULL, fn_ip);
if (rc == 0) {
@ -137,8 +136,7 @@ static int tftp_load(filename_ip_t *fnip, void *buffer, int len)
tftp_err_t tftp_err;
int rc;
rc = tftp(fnip, buffer, len, DEFAULT_TFTP_RETRIES, &tftp_err, 1, 1428,
ip_version);
rc = tftp(fnip, buffer, len, DEFAULT_TFTP_RETRIES, &tftp_err);
if (rc < 0) {
/* Make sure that error messages are put into a new line */
@ -149,61 +147,11 @@ static int tftp_load(filename_ip_t *fnip, void *buffer, int len)
printf(" TFTP: Received %s (%d KBytes)\n", fnip->filename, rc / 1024);
} else if (rc > 0) {
printf(" TFTP: Received %s (%d Bytes)\n", fnip->filename, rc);
} else if (rc == -1) {
puts("unknown TFTP error");
} else if (rc == -2) {
printf("TFTP buffer of %d bytes is too small for %s\n",
len, fnip->filename);
} else if (rc == -3) {
printf("file not found: %s\n", fnip->filename);
} else if (rc == -4) {
puts("TFTP access violation");
} else if (rc == -5) {
puts("illegal TFTP operation");
} else if (rc == -6) {
puts("unknown TFTP transfer ID");
} else if (rc == -7) {
puts("no such TFTP user");
} else if (rc == -8) {
puts("TFTP blocksize negotiation failed");
} else if (rc == -9) {
puts("file exceeds maximum TFTP transfer size");
} else if (rc <= -10 && rc >= -15) {
const char *icmp_err_str;
switch (rc) {
case -ICMP_NET_UNREACHABLE - 10:
icmp_err_str = "net unreachable";
break;
case -ICMP_HOST_UNREACHABLE - 10:
icmp_err_str = "host unreachable";
break;
case -ICMP_PROTOCOL_UNREACHABLE - 10:
icmp_err_str = "protocol unreachable";
break;
case -ICMP_PORT_UNREACHABLE - 10:
icmp_err_str = "port unreachable";
break;
case -ICMP_FRAGMENTATION_NEEDED - 10:
icmp_err_str = "fragmentation needed and DF set";
break;
case -ICMP_SOURCE_ROUTE_FAILED - 10:
icmp_err_str = "source route failed";
break;
default:
icmp_err_str = " UNKNOWN";
break;
}
printf("ICMP ERROR \"%s\"\n", icmp_err_str);
} else if (rc == -40) {
printf("TFTP error occurred after %d bad packets received",
tftp_err.bad_tftp_packets);
} else if (rc == -41) {
printf("TFTP error occurred after missing %d responses",
tftp_err.no_packets);
} else if (rc == -42) {
printf("TFTP error missing block %d, expected block was %d",
tftp_err.blocks_missed,
tftp_err.blocks_received);
} else {
const char *errstr = NULL;
int ecode;
tftp_get_error_info(fnip, &tftp_err, rc, &errstr, &ecode);
printf("TFTP error: %s\n", errstr ? errstr : "unknown error");
}
return rc;
@ -231,7 +179,7 @@ static int net_init(filename_ip_t *fn_ip)
rc = dhcp(fn_ip, DEFAULT_BOOT_RETRIES);
if (rc >= 0) {
if (ip_version == 4) {
if (fn_ip->ip_version == 4) {
set_ipv4_address(fn_ip->own_ip);
}
} else {
@ -239,11 +187,11 @@ static int net_init(filename_ip_t *fn_ip)
return -101;
}
if (ip_version == 4) {
if (fn_ip->ip_version == 4) {
printf(" Using IPv4 address: %d.%d.%d.%d\n",
(fn_ip->own_ip >> 24) & 0xFF, (fn_ip->own_ip >> 16) & 0xFF,
(fn_ip->own_ip >> 8) & 0xFF, fn_ip->own_ip & 0xFF);
} else if (ip_version == 6) {
} else if (fn_ip->ip_version == 6) {
char ip6_str[40];
ipv6_to_str(fn_ip->own_ip6.addr, ip6_str);
printf(" Using IPv6 address: %s\n", ip6_str);
@ -261,17 +209,17 @@ static int net_init(filename_ip_t *fn_ip)
}
printf(" Using TFTP server: ");
if (ip_version == 4) {
if (fn_ip->ip_version == 4) {
printf("%d.%d.%d.%d\n",
(fn_ip->server_ip >> 24) & 0xFF, (fn_ip->server_ip >> 16) & 0xFF,
(fn_ip->server_ip >> 8) & 0xFF, fn_ip->server_ip & 0xFF);
} else if (ip_version == 6) {
} else if (fn_ip->ip_version == 6) {
char ip6_str[40];
ipv6_to_str(fn_ip->server_ip6.addr, ip6_str);
printf("%s\n", ip6_str);
}
if (strlen((char *)fn_ip->filename) > 0) {
if (strlen(fn_ip->filename) > 0) {
printf(" Bootfile name: '%s'\n", fn_ip->filename);
}
@ -280,7 +228,7 @@ static int net_init(filename_ip_t *fn_ip)
static void net_release(filename_ip_t *fn_ip)
{
if (ip_version == 4) {
if (fn_ip->ip_version == 4) {
dhcp_send_release(fn_ip->fd);
}
}
@ -322,7 +270,7 @@ static int handle_ins_cfg(filename_ip_t *fn_ip, char *cfg, int cfgsize)
return -1;
}
*ptr = 0;
strncpy((char *)fn_ip->filename, insbuf, sizeof(fn_ip->filename));
strncpy(fn_ip->filename, insbuf, sizeof(fn_ip->filename));
destaddr = (char *)atol(ptr + 1);
rc = tftp_load(fn_ip, destaddr, (long)_start - (long)destaddr);
if (rc <= 0) {
@ -455,7 +403,7 @@ void main(void)
panic("Network initialization failed. Halting.\n");
}
fnlen = strlen((char *)fn_ip.filename);
fnlen = strlen(fn_ip.filename);
if (fnlen > 0 && fn_ip.filename[fnlen - 1] != '/') {
rc = net_try_direct_tftp_load(&fn_ip);
}