prom_printf( fmt, ## args );\
}
# define DEBUG_OPEN DEBUG_F( "dev=%s, part=0x%p (%d), file_name=%s\n",\
- dev_name, part, part ? part->part_number : -1,\
- file_name)
+ fspec->dev, part, part ? part->part_number : -1,\
+ fspec->file)
# define DEBUG_SLEEP prom_sleep(3)
#else
#define DEBUG_ENTER
struct boot_fspec_t {
char* dev; /* OF device path */
int part; /* Partition number or -1 */
+ char* siaddr; /* Server address */
char* file; /* File path */
+ char* ciaddr; /* Client address */
+ char* giaddr; /* Gateway address */
+ char* bootp_retries; /* Bootp retries */
+ char* tftp_retries; /* TFTP retries */
+ char* subnetmask; /* Subnet mask */
+ char* addl_params; /* copy all additional parameters */
+
+ /* Following fields are used only in ipv6 format */
+ int is_ipv6; /* is ipv6 specified ? */
+ char* dhcpv6; /* dhcpv6 string */
+ char* blksize; /* blksize string */
};
struct boot_file_t {
};
extern int
-open_file(const struct boot_fspec_t* spec,
+open_file(struct boot_fspec_t* spec,
struct boot_file_t* file);
extern int
#include "file.h"
int fserrorno;
+struct boot_fspec_t;
struct fs_t {
const char* name;
int (*open)( struct boot_file_t* file,
- const char* dev_name,
struct partition_t* part,
- const char* file_name);
+ struct boot_fspec_t* fspec);
int (*read)( struct boot_file_t* file,
unsigned int size,
extern const struct fs_t *fs_of;
extern const struct fs_t *fs_of_netboot;
-const struct fs_t *fs_open(struct boot_file_t *file, const char *dev_name,
- struct partition_t *part, const char *file_name);
+const struct fs_t *fs_open(struct boot_file_t *file,
+ struct partition_t *part, struct boot_fspec_t *fspec);
#endif
#define PROM_INVALID_HANDLE ((prom_handle)-1UL)
#define BOOTDEVSZ (2048) /* iscsi args can be in excess of 1040 bytes */
#define TOK_ISCSI "iscsi"
+#define TOK_IPV6 "ipv6"
#define PROM_CLAIM_MAX_ADDR 0x8000000
#define BOOTLASTSZ 1024
#define FW_NBR_REBOOTSZ 4
unsigned char chaddr[16];
unsigned char sname[64];
unsigned char file[128];
- /* vendor options go here if we need them */
+ unsigned char options[]; /* vendor options */
};
struct bootp_packet * prom_get_netinfo (void);
extern char bootdevice[];
-static char *netdev_path_to_filename(const char *path)
+/* Convert __u32 into std, dotted quad string, leaks like a sive :( */
+static char *
+ipv4_to_str(__u32 ip)
{
- char *tmp, *args, *filename;
- size_t len;
+ char *buf = malloc(sizeof("000.000.000.000"));
- DEBUG_F("path = %s\n", path);
+ sprintf(buf,"%u.%u.%u.%u",
+ (ip & 0xff000000) >> 24, (ip & 0x00ff0000) >> 16,
+ (ip & 0x0000ff00) >> 8, (ip & 0x000000ff));
- if (!path)
+ return buf;
+}
+
+/* Ensure the string arg is a plausible IPv4 address */
+static char * is_valid_ipv4_str(char *str)
+{
+ int i;
+ long tmp;
+ __u32 ip = 0;
+ char *ptr=str, *endptr;
+
+ if (str == NULL)
+ return NULL;
+
+ for (i=0; i<4; i++, ptr = ++endptr) {
+ tmp = strtol(ptr, &endptr, 10);
+ if ((tmp & 0xff) != tmp)
+ return NULL;
+
+ /* If we reach the end of the string but we're not in the 4th octet
+ * we have an invalid IP */
+ if (*endptr == '\x0' && i!=3)
+ return NULL;
+
+ /* If we have anything other than a NULL or '.' we have an invlaid
+ * IP */
+ if (*endptr != '\x0' && *endptr != '.')
+ return NULL;
+
+ ip += (tmp << (24-(i*8)));
+ }
+
+ if (ip == 0 || ip == ~0u)
+ return NULL;
+
+ return str;
+}
+
+
+/*
+ * Copy the string from source to dest till newline or comma(,) is seen
+ * in the source.
+ * Move source and dest pointers respectively.
+ * Returns pointer to the start of the string that has just been copied.
+ */
+static char *
+scopy(char **dest, char **source)
+{
+ char *ret = *dest;
+
+ if (!**source)
return NULL;
- args = strrchr(path, ':');
+ while (**source != ',' && **source != '\0')
+ *(*dest)++ = *(*source)++;
+ if (**source != '\0')
+ *(*source)++;
+ **dest = '\0';
+ *(*dest)++;
+ return ret;
+}
+
+/*
+ * Extract all the ipv4 arguments from the bootpath provided and fill result
+ * Returns 1 on success, 0 on failure.
+ */
+static int
+extract_ipv4_args(char *imagepath, struct boot_fspec_t *result)
+{
+ char *tmp, *args, *str, *start;
+
+ args = strrchr(imagepath, ':');
if (!args)
- return NULL;
+ return 1;
+
+ start = args; /* used to see if we read any optional parameters */
/* The obp-tftp device arguments should be at the end of
* the argument list. Skip over any extra arguments (promiscuous,
if (tmp && tmp > args)
args = tmp + strlen("rarp");
- args = strchr(args, ',');
+ if (args != start) /* we read some parameters, so go past the next comma(,) */
+ args = strchr(args, ',');
if (!args)
- return NULL;
+ return 1;
+
+ str = malloc(strlen(args) + 1); /*long enough to hold all strings */
+ if (!str)
+ return 0;
- tmp = args;
- tmp--;
- /* If the preceding character is ':' then there were no
- * non-obp-tftp arguments and we know we're right up to the
- * filename. Otherwise, we must advance args once more.
+ if (args[-1] != ':')
+ args++; /* If comma(,) is not immediately followed by ':' then go past the , */
+
+ /*
+ * read the arguments in order: siaddr,filename,ciaddr,giaddr,
+ * bootp-retries,tftp-retries,addl_prameters
*/
- args++;
- if (*tmp != ':') {
- args = strchr(args, ',');
- if (!args)
- return NULL;
- args++;
+ result->siaddr = is_valid_ipv4_str(scopy(&str, &args));
+ result->file = scopy(&str, &args);
+ result->ciaddr = is_valid_ipv4_str(scopy(&str, &args));
+ result->giaddr = is_valid_ipv4_str(scopy(&str, &args));
+ result->bootp_retries = scopy(&str, &args);
+ result->tftp_retries = scopy(&str, &args);
+ result->subnetmask = is_valid_ipv4_str(scopy(&str, &args));
+ if (*args) {
+ result->addl_params = strdup(args);
+ if (!result->addl_params)
+ return 0;
}
+ return 1;
+}
- /* filename may be empty; e.g. enet:192.168.1.1,,192.168.1.2 */
- if (*args == ',') {
- DEBUG_F("null filename\n");
- return NULL;
+/* DHCP options */
+enum dhcp_options {
+ DHCP_PAD = 0,
+ DHCP_NETMASK = 1,
+ DHCP_ROUTERS = 3,
+ DHCP_DNS = 6,
+ DHCP_END = 255,
+};
+
+#define DHCP_COOKIE 0x63825363
+#define DHCP_COOKIE_SIZE 4
+
+/*
+ * Process the bootp reply packet's vendor extensions.
+ * Vendor extensions are detailed in: http://www.faqs.org/rfcs/rfc1084.html
+ */
+static void
+extract_vendor_options(struct bootp_packet *packet, struct boot_fspec_t *result)
+{
+ int i = 0;
+ __u32 cookie;
+ __u8 *options = &packet->options[0];
+
+ memcpy(&cookie, &options[i], DHCP_COOKIE_SIZE);
+
+ if (cookie != DHCP_COOKIE) {
+ prom_printf("EEEK! cookie is fubar got %08x expected %08x\n",
+ cookie, DHCP_COOKIE);
+ return;
}
- /* Now see whether there are more args following the filename. */
- tmp = strchr(args, ',');
- if (!tmp)
- len = strlen(args) + 1;
- else
- len = tmp - args + 1;
+ i += DHCP_COOKIE_SIZE;
- filename = malloc(len);
- if (!filename)
- return NULL;
+ /* FIXME: It may be possible to run off the end of a packet here /if/
+ * it's malformed. :( */
+ while (options[i] != DHCP_END) {
+ __u8 tag = options[i++], len;
+ __u32 value;
- strncpy(filename, args, len);
- filename[len - 1] = '\0';
+ if (tag == DHCP_PAD)
+ continue;
- DEBUG_F("filename = %s\n", filename);
- return filename;
+ len = options[i++];
+ memcpy(&value, &options[i], len);
+
+#if DEBUG
+{
+ DEBUG_F("tag=%2d, len=%2d, data=", tag, len);
+ int j;
+ for (j=0; j<len; j++)
+ prom_printf("%02x", options[i+j]);
+ prom_printf("\n");
+}
+#endif
+
+ switch (tag) {
+ case DHCP_NETMASK:
+ if ((result->subnetmask == NULL ||
+ *(result->subnetmask) == '\x0') && value != 0) {
+ result->subnetmask = ipv4_to_str(value);
+ DEBUG_F("Storing %s as subnetmask from options\n",
+ result->subnetmask);
+ }
+ break;
+ case DHCP_ROUTERS:
+ if ((result->giaddr == NULL || *(result->giaddr) == '\x0')
+ && value != 0) {
+ result->giaddr = ipv4_to_str(value);
+ DEBUG_F("Storing %s as gateway from options\n",
+ result->giaddr);
+ }
+ break;
+ }
+ i += len;
+ }
+}
+
+/*
+ * Check netinfo for ipv4 parameters and add them to the fspec iff the
+ * fspec has no existing value.
+ *
+ * Returns 1 on success, 0 on failure.
+ */
+static int
+extract_netinfo_args(struct boot_fspec_t *result)
+{
+ struct bootp_packet *packet;
+
+ /* Check to see if we can get the [scyg]iaddr fields from netinfo */
+ packet = prom_get_netinfo();
+ if (!packet)
+ return 0;
+
+ DEBUG_F("We have a boot packet\n");
+ DEBUG_F(" siaddr = <%x>\n", packet->siaddr);
+ DEBUG_F(" ciaddr = <%x>\n", packet->ciaddr);
+ DEBUG_F(" yiaddr = <%x>\n", packet->yiaddr);
+ DEBUG_F(" giaddr = <%x>\n", packet->giaddr);
+
+ /* Try to fallback to yiaddr if ciaddr is empty. Broken? */
+ if (packet->ciaddr == 0 && packet->yiaddr != 0)
+ packet->ciaddr = packet->yiaddr;
+
+ if ((result->siaddr == NULL || *(result->siaddr) == '\x0')
+ && packet->siaddr != 0)
+ result->siaddr = ipv4_to_str(packet->siaddr);
+ if ((result->ciaddr == NULL || *(result->ciaddr) == '\x0')
+ && packet->ciaddr != 0)
+ result->ciaddr = ipv4_to_str(packet->ciaddr);
+ if ((result->giaddr == NULL || *(result->giaddr) == '\x0')
+ && packet->giaddr != 0)
+ result->giaddr = ipv4_to_str(packet->giaddr);
+
+ extract_vendor_options(packet, result);
+
+ /* FIXME: Yck! if we /still/ do not have a gateway then "cheat" and use
+ * the server. This will be okay if the client and server are on
+ * the same IP network, if not then lets hope the server does ICMP
+ * redirections */
+ if (result->giaddr == NULL) {
+ result->giaddr = ipv4_to_str(packet->siaddr);
+ DEBUG_F("Forcing giaddr to siaddr <%s>\n", result->giaddr);
+ }
+
+ return 1;
+}
+
+/*
+ * Extract all the ipv6 arguments from the bootpath provided and fill result
+ * Syntax: ipv6,[dhcpv6[=diaddr,]]ciaddr=c_iaddr,giaddr=g_iaddr,siaddr=s_iaddr,
+ * filename=file_name,tftp-retries=tftp_retries,blksize=block_size
+ * Returns 1 on success, 0 on failure.
+ */
+static int
+extract_ipv6_args(char *imagepath, struct boot_fspec_t *result)
+{
+ char *str, *tmp;
+ int total_len;
+
+ result->is_ipv6 = 1;
+
+ /* Just allocate the max required size */
+ total_len = strlen(imagepath) + 1;
+ str = malloc(total_len);
+ if (!str)
+ return 0;
+
+ if ((tmp = strstr(imagepath, "dhcpv6=")) != NULL)
+ result->dhcpv6 = scopy(&str, &tmp);
+
+ if ((tmp = strstr(imagepath, "ciaddr=")) != NULL)
+ result->ciaddr = scopy(&str, &tmp);
+
+ if ((tmp = strstr(imagepath, "giaddr=")) != NULL)
+ result->giaddr = scopy(&str, &tmp);
+
+ if ((tmp = strstr(imagepath, "siaddr=")) != NULL)
+ result->siaddr = scopy(&str, &tmp);
+
+ if ((tmp = strstr(imagepath, "filename=")) != NULL)
+ result->file = scopy(&str, &tmp);
+
+ if ((tmp = strstr(imagepath, "tftp-retries=")) != NULL)
+ result->tftp_retries = scopy(&str, &tmp);
+
+ if ((tmp = strstr(imagepath, "blksize=")) != NULL)
+ result->blksize = scopy(&str, &tmp);
+
+ return 1;
+}
+
+/*
+ * Extract all the arguments provided in the imagepath and fill it in result.
+ * Returns 1 on success, 0 on failure.
+ */
+static int
+extract_netboot_args(char *imagepath, struct boot_fspec_t *result)
+{
+ int ret;
+
+ DEBUG_F("imagepath = %s\n", imagepath);
+
+ if (!imagepath)
+ return 1;
+
+ if (strstr(imagepath, TOK_IPV6))
+ ret = extract_ipv6_args(imagepath, result);
+ else
+ ret = extract_ipv4_args(imagepath, result);
+ ret |= extract_netinfo_args(result);
+
+ DEBUG_F("ipv6 = <%d>\n", result->is_ipv6);
+ DEBUG_F("siaddr = <%s>\n", result->siaddr);
+ DEBUG_F("file = <%s>\n", result->file);
+ DEBUG_F("ciaddr = <%s>\n", result->ciaddr);
+ DEBUG_F("giaddr = <%s>\n", result->giaddr);
+ DEBUG_F("bootp_retries = <%s>\n", result->bootp_retries);
+ DEBUG_F("tftp_retries = <%s>\n", result->tftp_retries);
+ DEBUG_F("addl_params = <%s>\n", result->addl_params);
+ DEBUG_F("dhcpv6 = <%s>\n", result->dhcpv6);
+ DEBUG_F("blksize = <%s>\n", result->blksize);
+
+ return ret;
}
static char *netdev_path_to_dev(const char *path)
- enet:,/tftpboot/vmlinux
- enet:bootp
- enet:0
+ - arguments for obp-tftp open as specified in section 4.1 of
+ http://playground.sun.com/1275/practice/obp-tftp/tftp1_0.pdf
+ [bootp,]siaddr,filename,ciaddr,giaddr,bootp-retries,tftp-retries
+ ex: enet:bootp,10.0.0.11,bootme,10.0.0.12,10.0.0.1,5,5
Supported only if defdevice == NULL
- disc
- any other device path lacking a :
char *defdev = NULL;
int device_kind = -1;
+ DEBUG_F("imagepath = %s; defdevice %s; defpart %d, deffile %s\n",
+ imagepath, defdevice, defpart, deffile);
+
result->dev = NULL;
result->part = -1;
result->file = NULL;
}
if (device_kind == FILE_DEVICE_NET) {
- if (strchr(ipath, ':'))
- result->file = netdev_path_to_filename(ipath);
- else
+ if (strchr(ipath, ':')) {
+ if (extract_netboot_args(ipath, result) == 0)
+ return 0;
+ } else {
+ /* If we didn't get a ':' then look only in netinfo */
+ extract_netinfo_args(result);
result->file = strdup(ipath);
+ }
if (!defdev)
result->dev = netdev_path_to_dev(ipath);
static int
file_block_open( struct boot_file_t* file,
- const char* dev_name,
- const char* file_name,
+ struct boot_fspec_t* fspec,
int partition)
{
struct partition_t* parts;
struct partition_t* p;
struct partition_t* found;
- parts = partitions_lookup(dev_name);
+ parts = partitions_lookup(fspec->dev);
found = NULL;
#if DEBUG
DEBUG_F("number: %02d, start: 0x%08lx, length: 0x%08lx\n",
p->part_number, p->part_start, p->part_size );
if (partition == -1) {
- file->fs = fs_open( file, dev_name, p, file_name );
+ file->fs = fs_open( file, p, fspec );
if (file->fs == NULL || fserrorno != FILE_ERR_OK)
continue;
else {
* cases, let OF figure out a default partition.
*/
DEBUG_F( "Using OF defaults.. (found = %p)\n", found );
- file->fs = fs_open( file, dev_name, found, file_name );
+ file->fs = fs_open( file, found, fspec );
done:
if (parts)
}
static int
-file_net_open( struct boot_file_t* file,
- const char* dev_name,
- const char* file_name)
+file_net_open(struct boot_file_t* file, struct boot_fspec_t *fspec)
{
file->fs = fs_of_netboot;
- return fs_of_netboot->open(file, dev_name, NULL, file_name);
+ return fs_of_netboot->open(file, NULL, fspec);
}
static int
};
-int open_file(const struct boot_fspec_t* spec, struct boot_file_t* file)
+int open_file(struct boot_fspec_t* spec, struct boot_file_t* file)
{
int result;
switch(file->device_kind) {
case FILE_DEVICE_BLOCK:
DEBUG_F("device is a block device\n");
- return file_block_open(file, spec->dev, spec->file, spec->part);
+ return file_block_open(file, spec, spec->part);
case FILE_DEVICE_NET:
DEBUG_F("device is a network device\n");
- return file_net_open(file, spec->dev, spec->file);
+ return file_net_open(file, spec);
}
return 0;
}
const struct fs_t *fs_of_netboot = &of_net_filesystem; /* needed by file.c */
const struct fs_t *
-fs_open(struct boot_file_t *file, const char *dev_name,
- struct partition_t *part, const char *file_name)
+fs_open(struct boot_file_t *file,
+ struct partition_t *part, struct boot_fspec_t *fspec)
{
const struct fs_t **fs;
for (fs = block_filesystems; *fs; fs++)
- if ((fserrorno = (*fs)->open(file, dev_name, part, file_name)) != FILE_ERR_BAD_FSYS)
+ if ((fserrorno = (*fs)->open(file, part, fspec)) != FILE_ERR_BAD_FSYS)
break;
return *fs;
#include "ext2fs/ext2fs.h"
static int ext2_open( struct boot_file_t* file,
- const char* dev_name,
struct partition_t* part,
- const char* file_name);
+ struct boot_fspec_t* fspec);
static int ext2_read( struct boot_file_t* file,
unsigned int size,
void* buffer);
static int
ext2_open( struct boot_file_t* file,
- const char* dev_name,
struct partition_t* part,
- const char* file_name)
+ struct boot_fspec_t* fspec)
{
int result = 0;
int error = FILE_ERR_NOTFOUND;
static char buffer[1024];
int ofopened = 0;
+ char *dev_name = fspec->dev;
+ char *file_name = fspec->file;
DEBUG_ENTER;
DEBUG_OPEN;
#include "errors.h"
static int iso_open( struct boot_file_t* file,
- const char* dev_name,
struct partition_t* part,
- const char* file_name);
+ struct boot_fspec_t* fspec);
static int iso_read( struct boot_file_t* file,
unsigned int size,
void* buffer);
static int
iso_open( struct boot_file_t* file,
- const char* dev_name,
struct partition_t* part,
- const char* file_name)
+ struct boot_fspec_t* fspec)
{
return FILE_ERR_BAD_FSYS;
}
#include "debug.h"
#define LOAD_BUFFER_POS 0x1000000
-#define LOAD_BUFFER_SIZE 0x1000000
+#define LOAD_BUFFER_SIZE 0x1800000
-static int of_open(struct boot_file_t* file, const char* dev_name,
- struct partition_t* part, const char* file_name);
+static int of_open(struct boot_file_t* file,
+ struct partition_t* part, struct boot_fspec_t* fspec);
static int of_read(struct boot_file_t* file, unsigned int size, void* buffer);
static int of_seek(struct boot_file_t* file, unsigned int newpos);
static int of_close(struct boot_file_t* file);
-static int of_net_open(struct boot_file_t* file, const char* dev_name,
- struct partition_t* part, const char* file_name);
+static int of_net_open(struct boot_file_t* file,
+ struct partition_t* part, struct boot_fspec_t* fspec);
static int of_net_read(struct boot_file_t* file, unsigned int size, void* buffer);
static int of_net_seek(struct boot_file_t* file, unsigned int newpos);
};
static int
-of_open(struct boot_file_t* file, const char* dev_name,
- struct partition_t* part, const char* file_name)
+of_open(struct boot_file_t* file,
+ struct partition_t* part, struct boot_fspec_t* fspec)
{
static char buffer[1024];
char *filename;
DEBUG_ENTER;
DEBUG_OPEN;
- strncpy(buffer, dev_name, 768);
+ strncpy(buffer, fspec->dev, 768);
strcat(buffer, ":");
if (part) {
if (part->sys_ind == LINUX_RAID) {
sprintf(pn, "%02d", part->part_number);
strcat(buffer, pn);
}
- if (file_name && strlen(file_name)) {
+ if (fspec->file && strlen(fspec->file)) {
if (part)
strcat(buffer, ",");
- filename = strdup(file_name);
+ filename = strdup(fspec->file);
for (p = filename; *p; p++)
if (*p == '/')
*p = '\\';
}
static int
-of_net_open(struct boot_file_t* file, const char* dev_name,
- struct partition_t* part, const char* file_name)
+of_net_open(struct boot_file_t* file,
+ struct partition_t* part, struct boot_fspec_t* fspec)
{
static char buffer[1024];
- char *filename;
+ char *filename = NULL;
char *p;
+ int new_tftp;
DEBUG_ENTER;
DEBUG_OPEN;
- strncpy(buffer, dev_name, 768);
- if (file_name && strlen(file_name)) {
- strcat(buffer, ",");
- filename = strdup(file_name);
+ if (fspec->file && strlen(fspec->file)) {
+ filename = strdup(fspec->file);
for (p = filename; *p; p++)
if (*p == '/')
*p = '\\';
- strcat(buffer, filename);
- free(filename);
+ }
+
+ DEBUG_F("siaddr <%s>; filename <%s>; ciaddr <%s>; giaddr <%s>;"
+ " ipv6 <%d>\n",
+ fspec->siaddr, filename, fspec->ciaddr, fspec->giaddr,
+ fspec->is_ipv6);
+
+ strncpy(buffer, fspec->dev, 768);
+ /* If we didn't get a ':' include one */
+ if (fspec->dev[strlen(fspec->dev)-1] != ':')
+ strcat(buffer, ":");
+
+ /* If /packages/cas exists the we have a "new skool" tftp.
+ * This means that siaddr is the tftp server and that we can add
+ * {tftp,bootp}_retrys, subnet mask and tftp block size to the load
+ * method */
+ new_tftp = (prom_finddevice("/packages/cas") != PROM_INVALID_HANDLE);
+ DEBUG_F("Using %s tftp style\n", (new_tftp? "new": "old"));
+
+ if (new_tftp) {
+ strcat(buffer, fspec->siaddr);
+ strcat(buffer, ",");
+
+ if (fspec->is_ipv6 && (strstr(filename, "filename=") == NULL))
+ strcat(buffer, "filename=");
+
+ strcat(buffer, filename);
+ strcat(buffer, ",");
+ strcat(buffer, fspec->ciaddr);
+ strcat(buffer, ",");
+ strcat(buffer, fspec->giaddr);
+ strcat(buffer, ",");
+ strcat(buffer, fspec->bootp_retries);
+ strcat(buffer, ",");
+ strcat(buffer, fspec->tftp_retries);
+ strcat(buffer, ",");
+ strcat(buffer, fspec->subnetmask);
+ strcat(buffer, ",");
+ strcat(buffer, fspec->addl_params);
+ } else {
+ strcat(buffer, ",");
+ strcat(buffer, filename);
}
DEBUG_F("Opening: \"%s\"\n", buffer);
#include "reiserfs/reiserfs.h"
/* Exported in struct fs_t */
-static int reiserfs_open( struct boot_file_t *file, const char *dev_name,
- struct partition_t *part, const char *file_name );
+static int reiserfs_open( struct boot_file_t *file, struct partition_t *part,
+ struct boot_fspec_t *fspec);
static int reiserfs_read( struct boot_file_t *file, unsigned int size,
void *buffer );
static int
-reiserfs_open( struct boot_file_t *file, const char *dev_name,
- struct partition_t *part, const char *file_name )
+reiserfs_open( struct boot_file_t *file, struct partition_t *part,
+ struct boot_fspec_t *fspec)
{
static char buffer[1024];
+ char *dev_name = fspec->dev;
+ char *file_name = fspec->file;
DEBUG_ENTER;
DEBUG_OPEN;
memset( INFO, 0, sizeof(struct reiserfs_state) );
INFO->file = file;
- if (part)
+ if (fspec->part)
{
DEBUG_F( "Determining offset for partition %d\n", part->part_number );
INFO->partition_offset = ((uint64_t)part->part_start) * part->blocksize;
int xfs_dir (char *dirname);
/* Exported in struct fs_t */
-static int xfs_open(struct boot_file_t *file, const char *dev_name,
- struct partition_t *part, const char *file_name);
+static int xfs_open(struct boot_file_t *file,
+ struct partition_t *part, struct boot_fspec_t *fspec);
static int xfs_read(struct boot_file_t *file, unsigned int size, void *buffer);
static int xfs_seek(struct boot_file_t *file, unsigned int newpos);
static int xfs_close(struct boot_file_t *file);
int errnum;
static int
-xfs_open(struct boot_file_t *file, const char *dev_name,
- struct partition_t *part, const char *file_name)
+xfs_open(struct boot_file_t *file,
+ struct partition_t *part, struct boot_fspec_t *fspec)
{
static char buffer[1024];
else
partition_offset = 0;
- strncpy(buffer, dev_name, 1020);
+ strncpy(buffer, fspec->dev, 1020);
if (_machine != _MACH_bplan)
strcat(buffer, ":0"); /* 0 is full disk in (non-buggy) OF */
DEBUG_F("Trying to open dev_name=%s; filename=%s; partition offset=%Lu\n",
- buffer, file_name, partition_offset);
+ buffer, fspec->file, partition_offset);
file->of_device = prom_open(buffer);
if (file->of_device == PROM_INVALID_HANDLE || file->of_device == NULL)
return FILE_ERR_BAD_FSYS;
}
- DEBUG_F("Attempting to open %s\n", file_name);
- strcpy(buffer, file_name); /* xfs_dir modifies argument */
+ DEBUG_F("Attempting to open %s\n", fspec->file);
+ strcpy(buffer, fspec->file); /* xfs_dir modifies argument */
if(!xfs_dir(buffer))
{
DEBUG_F("xfs_dir() failed. errnum = %d\n", errnum);
return errnum;
}
- DEBUG_F("Successfully opened %s\n", file_name);
+ DEBUG_F("Successfully opened %s\n", fspec->file);
DEBUG_LEAVE(FILE_ERR_OK);
return FILE_ERR_OK;
void *bootp_response = NULL;
char *propname;
struct bootp_packet *packet;
+ /* struct bootp_packet contains a VLA, so sizeof won't work.
+ the VLA /must/ be the last field in the structure so use it's
+ offset as a good estimate of the packet size */
+ size_t packet_size = offsetof(struct bootp_packet, options);
int i = 0, size, offset = 0;
prom_handle chosen;
#define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
if (size <= 0)
return NULL;
- if (sizeof(*packet) > size - offset) {
+ if (packet_size > size - offset) {
prom_printf("Malformed %s property?\n", propname);
return NULL;
}
}
strncpy(msgpath, filename, sizeof(msgpath));
+ msgfile = boot; /* Copy all the original paramters */
if (!parse_device_path(msgpath, defdev, defpart, "/etc/yaboot.msg", &msgfile)) {
prom_printf("%s: Unable to parse\n", msgpath);
goto done;
int minlen;
packet = prom_get_netinfo();
+ if (!packet)
+ goto out;
/*
* First, try to match on mac address with the hardware type
if (!label && password)
check_password ("To boot a custom image you must enter the password.");
+ params->kernel = boot; /* Copy all the original paramters */
if (!parse_device_path(imagepath, defdevice, defpart,
"/vmlinux", ¶ms->kernel)) {
prom_printf("%s: Unable to parse\n", imagepath);
strncpy(initrdpath, p, 1024);
DEBUG_F("Parsing initrd path <%s>\n", initrdpath);
+ params->rd = boot; /* Copy all the original paramters */
if (!parse_device_path(initrdpath, defdevice, defpart,
"/root.bin", ¶ms->rd)) {
prom_printf("%s: Unable to parse\n", imagepath);
if (p && *p) {
DEBUG_F("Parsing sysmap path <%s>\n", p);
strncpy(sysmappath, p, 1024);
+ params->sysmap = boot; /* Copy all the original paramters */
if (!parse_device_path(sysmappath, defdevice, defpart,
"/boot/System.map", ¶ms->sysmap)) {
prom_printf("%s: Unable to parse\n", imagepath);
projects / yaboot.git / commitdiff