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Diffstat (limited to 'fs/cifs/netmisc.c')
-rw-r--r--fs/cifs/netmisc.c192
1 files changed, 111 insertions, 81 deletions
diff --git a/fs/cifs/netmisc.c b/fs/cifs/netmisc.c
index 3b5a5ce882b..6834b9c3bec 100644
--- a/fs/cifs/netmisc.c
+++ b/fs/cifs/netmisc.c
@@ -51,7 +51,7 @@ static const struct smb_to_posix_error mapping_table_ERRDOS[] = {
{ERRnoaccess, -EACCES},
{ERRbadfid, -EBADF},
{ERRbadmcb, -EIO},
- {ERRnomem, -ENOMEM},
+ {ERRnomem, -EREMOTEIO},
{ERRbadmem, -EFAULT},
{ERRbadenv, -EFAULT},
{ERRbadformat, -EINVAL},
@@ -61,7 +61,8 @@ static const struct smb_to_posix_error mapping_table_ERRDOS[] = {
{ERRremcd, -EACCES},
{ERRdiffdevice, -EXDEV},
{ERRnofiles, -ENOENT},
- {ERRbadshare, -ETXTBSY},
+ {ERRwriteprot, -EROFS},
+ {ERRbadshare, -EBUSY},
{ERRlock, -EACCES},
{ERRunsup, -EINVAL},
{ERRnosuchshare, -ENXIO},
@@ -79,6 +80,7 @@ static const struct smb_to_posix_error mapping_table_ERRDOS[] = {
{ErrQuota, -EDQUOT},
{ErrNotALink, -ENOLINK},
{ERRnetlogonNotStarted, -ENOPROTOOPT},
+ {ERRsymlink, -EOPNOTSUPP},
{ErrTooManyLinks, -EMLINK},
{0, 0}
};
@@ -108,7 +110,7 @@ static const struct smb_to_posix_error mapping_table_ERRSRV[] = {
{ERRnoroom, -ENOSPC},
{ERRrmuns, -EUSERS},
{ERRtimeout, -ETIME},
- {ERRnoresource, -ENOBUFS},
+ {ERRnoresource, -EREMOTEIO},
{ERRtoomanyuids, -EUSERS},
{ERRbaduid, -EACCES},
{ERRusempx, -EIO},
@@ -132,54 +134,87 @@ static const struct smb_to_posix_error mapping_table_ERRHRD[] = {
{0, 0}
};
-
-/* if the mount helper is missing we need to reverse the 1st slash
- from '/' to backslash in order to format the UNC properly for
- ip address parsing and for tree connect (unless the user
- remembered to put the UNC name in properly). Fortunately we do
- not have to call this twice (we check for IPv4 addresses
- first, so it is already converted by the time we
- try IPv6 addresses */
-static int canonicalize_unc(char *cp)
+/*
+ * Convert a string containing text IPv4 or IPv6 address to binary form.
+ *
+ * Returns 0 on failure.
+ */
+static int
+cifs_inet_pton(const int address_family, const char *cp, int len, void *dst)
{
- int i;
+ int ret = 0;
- for (i = 0; i <= 46 /* INET6_ADDRSTRLEN */ ; i++) {
- if (cp[i] == 0)
- break;
- if (cp[i] == '\\')
- break;
- if (cp[i] == '/') {
- cFYI(DBG2, ("change slash to \\ in malformed UNC"));
- cp[i] = '\\';
- return 1;
- }
- }
- return 0;
-}
+ /* calculate length by finding first slash or NULL */
+ if (address_family == AF_INET)
+ ret = in4_pton(cp, len, dst, '\\', NULL);
+ else if (address_family == AF_INET6)
+ ret = in6_pton(cp, len, dst , '\\', NULL);
-/* Convert string containing dotted ip address to binary form */
-/* returns 0 if invalid address */
+ cifs_dbg(NOISY, "address conversion returned %d for %*.*s\n",
+ ret, len, len, cp);
+ if (ret > 0)
+ ret = 1;
+ return ret;
+}
+/*
+ * Try to convert a string to an IPv4 address and then attempt to convert
+ * it to an IPv6 address if that fails. Set the family field if either
+ * succeeds. If it's an IPv6 address and it has a '%' sign in it, try to
+ * treat the part following it as a numeric sin6_scope_id.
+ *
+ * Returns 0 on failure.
+ */
int
-cifs_inet_pton(int address_family, char *cp, void *dst)
+cifs_convert_address(struct sockaddr *dst, const char *src, int len)
{
- int ret = 0;
+ int rc, alen, slen;
+ const char *pct;
+ char scope_id[13];
+ struct sockaddr_in *s4 = (struct sockaddr_in *) dst;
+ struct sockaddr_in6 *s6 = (struct sockaddr_in6 *) dst;
+
+ /* IPv4 address */
+ if (cifs_inet_pton(AF_INET, src, len, &s4->sin_addr.s_addr)) {
+ s4->sin_family = AF_INET;
+ return 1;
+ }
- /* calculate length by finding first slash or NULL */
- if (address_family == AF_INET) {
- ret = in4_pton(cp, -1 /* len */, dst, '\\', NULL);
- if (ret == 0) {
- if (canonicalize_unc(cp))
- ret = in4_pton(cp, -1, dst, '\\', NULL);
- }
- } else if (address_family == AF_INET6) {
- ret = in6_pton(cp, -1 /* len */, dst , '\\', NULL);
+ /* attempt to exclude the scope ID from the address part */
+ pct = memchr(src, '%', len);
+ alen = pct ? pct - src : len;
+
+ rc = cifs_inet_pton(AF_INET6, src, alen, &s6->sin6_addr.s6_addr);
+ if (!rc)
+ return rc;
+
+ s6->sin6_family = AF_INET6;
+ if (pct) {
+ /* grab the scope ID */
+ slen = len - (alen + 1);
+ if (slen <= 0 || slen > 12)
+ return 0;
+ memcpy(scope_id, pct + 1, slen);
+ scope_id[slen] = '\0';
+
+ rc = kstrtouint(scope_id, 0, &s6->sin6_scope_id);
+ rc = (rc == 0) ? 1 : 0;
+ }
+
+ return rc;
+}
+
+void
+cifs_set_port(struct sockaddr *addr, const unsigned short int port)
+{
+ switch (addr->sa_family) {
+ case AF_INET:
+ ((struct sockaddr_in *)addr)->sin_port = htons(port);
+ break;
+ case AF_INET6:
+ ((struct sockaddr_in6 *)addr)->sin6_port = htons(port);
+ break;
}
- cFYI(DBG2, ("address conversion returned %d for %s", ret, cp));
- if (ret > 0)
- ret = 1;
- return ret;
}
/*****************************************************************************
@@ -365,7 +400,7 @@ static const struct {
from NT_STATUS_INSUFFICIENT_RESOURCES to
NT_STATUS_INSUFF_SERVER_RESOURCES during the session setup } */
{
- ERRDOS, ERRnomem, NT_STATUS_INSUFFICIENT_RESOURCES}, {
+ ERRDOS, ERRnoresource, NT_STATUS_INSUFFICIENT_RESOURCES}, {
ERRDOS, ERRbadpath, NT_STATUS_DFS_EXIT_PATH_FOUND}, {
ERRDOS, 23, NT_STATUS_DEVICE_DATA_ERROR}, {
ERRHRD, ERRgeneral, NT_STATUS_DEVICE_NOT_CONNECTED}, {
@@ -635,7 +670,7 @@ static const struct {
ERRHRD, ERRgeneral, NT_STATUS_NO_USER_SESSION_KEY}, {
ERRDOS, 59, NT_STATUS_USER_SESSION_DELETED}, {
ERRHRD, ERRgeneral, NT_STATUS_RESOURCE_LANG_NOT_FOUND}, {
- ERRDOS, ERRnomem, NT_STATUS_INSUFF_SERVER_RESOURCES}, {
+ ERRDOS, ERRnoresource, NT_STATUS_INSUFF_SERVER_RESOURCES}, {
ERRHRD, ERRgeneral, NT_STATUS_INVALID_BUFFER_SIZE}, {
ERRHRD, ERRgeneral, NT_STATUS_INVALID_ADDRESS_COMPONENT}, {
ERRHRD, ERRgeneral, NT_STATUS_INVALID_ADDRESS_WILDCARD}, {
@@ -744,7 +779,10 @@ static const struct {
ERRDOS, ERRnoaccess, 0xc000028f}, {
ERRDOS, ERRnoaccess, 0xc0000290}, {
ERRDOS, ERRbadfunc, 0xc000029c}, {
- ERRDOS, ERRinvlevel, 0x007c0001}, };
+ ERRDOS, ERRsymlink, NT_STATUS_STOPPED_ON_SYMLINK}, {
+ ERRDOS, ERRinvlevel, 0x007c0001}, {
+ 0, 0, 0 }
+};
/*****************************************************************************
Print an error message from the status code
@@ -757,8 +795,8 @@ cifs_print_status(__u32 status_code)
while (nt_errs[idx].nt_errstr != NULL) {
if (((nt_errs[idx].nt_errcode) & 0xFFFFFF) ==
(status_code & 0xFFFFFF)) {
- printk(KERN_NOTICE "Status code returned 0x%08x %s\n",
- status_code, nt_errs[idx].nt_errstr);
+ pr_notice("Status code returned 0x%08x %s\n",
+ status_code, nt_errs[idx].nt_errstr);
}
idx++;
}
@@ -787,8 +825,9 @@ ntstatus_to_dos(__u32 ntstatus, __u8 *eclass, __u16 *ecode)
}
int
-map_smb_to_linux_error(struct smb_hdr *smb, int logErr)
+map_smb_to_linux_error(char *buf, bool logErr)
{
+ struct smb_hdr *smb = (struct smb_hdr *)buf;
unsigned int i;
int rc = -EIO; /* if transport error smb error may not be set */
__u8 smberrclass;
@@ -850,8 +889,8 @@ map_smb_to_linux_error(struct smb_hdr *smb, int logErr)
}
/* else ERRHRD class errors or junk - return EIO */
- cFYI(1, ("Mapping smb error code %d to POSIX err %d",
- smberrcode, rc));
+ cifs_dbg(FYI, "Mapping smb error code 0x%x to POSIX err %d\n",
+ le32_to_cpu(smb->Status.CifsError), rc);
/* generic corrective action e.g. reconnect SMB session on
* ERRbaduid could be added */
@@ -864,29 +903,23 @@ map_smb_to_linux_error(struct smb_hdr *smb, int logErr)
* portion, the number of word parameters and the data portion of the message
*/
unsigned int
-smbCalcSize(struct smb_hdr *ptr)
+smbCalcSize(void *buf)
{
+ struct smb_hdr *ptr = (struct smb_hdr *)buf;
return (sizeof(struct smb_hdr) + (2 * ptr->WordCount) +
- 2 /* size of the bcc field */ + BCC(ptr));
-}
-
-unsigned int
-smbCalcSize_LE(struct smb_hdr *ptr)
-{
- return (sizeof(struct smb_hdr) + (2 * ptr->WordCount) +
- 2 /* size of the bcc field */ + le16_to_cpu(BCC_LE(ptr)));
+ 2 /* size of the bcc field */ + get_bcc(ptr));
}
/* The following are taken from fs/ntfs/util.c */
#define NTFS_TIME_OFFSET ((u64)(369*365 + 89) * 24 * 3600 * 10000000)
- /*
- * Convert the NT UTC (based 1601-01-01, in hundred nanosecond units)
- * into Unix UTC (based 1970-01-01, in seconds).
- */
+/*
+ * Convert the NT UTC (based 1601-01-01, in hundred nanosecond units)
+ * into Unix UTC (based 1970-01-01, in seconds).
+ */
struct timespec
-cifs_NTtimeToUnix(u64 ntutc)
+cifs_NTtimeToUnix(__le64 ntutc)
{
struct timespec ts;
/* BB what about the timezone? BB */
@@ -894,7 +927,7 @@ cifs_NTtimeToUnix(u64 ntutc)
/* Subtract the NTFS time offset, then convert to 1s intervals. */
u64 t;
- t = ntutc - NTFS_TIME_OFFSET;
+ t = le64_to_cpu(ntutc) - NTFS_TIME_OFFSET;
ts.tv_nsec = do_div(t, 10000000) * 100;
ts.tv_sec = t;
return ts;
@@ -908,36 +941,33 @@ cifs_UnixTimeToNT(struct timespec t)
return (u64) t.tv_sec * 10000000 + t.tv_nsec/100 + NTFS_TIME_OFFSET;
}
-static int total_days_of_prev_months[] =
-{0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334};
-
-
-__le64 cnvrtDosCifsTm(__u16 date, __u16 time)
-{
- return cpu_to_le64(cifs_UnixTimeToNT(cnvrtDosUnixTm(date, time)));
-}
+static const int total_days_of_prev_months[] = {
+ 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334
+};
-struct timespec cnvrtDosUnixTm(__u16 date, __u16 time)
+struct timespec cnvrtDosUnixTm(__le16 le_date, __le16 le_time, int offset)
{
struct timespec ts;
int sec, min, days, month, year;
+ u16 date = le16_to_cpu(le_date);
+ u16 time = le16_to_cpu(le_time);
SMB_TIME *st = (SMB_TIME *)&time;
SMB_DATE *sd = (SMB_DATE *)&date;
- cFYI(1, ("date %d time %d", date, time));
+ cifs_dbg(FYI, "date %d time %d\n", date, time);
sec = 2 * st->TwoSeconds;
min = st->Minutes;
if ((sec > 59) || (min > 59))
- cERROR(1, ("illegal time min %d sec %d", min, sec));
+ cifs_dbg(VFS, "illegal time min %d sec %d\n", min, sec);
sec += (min * 60);
sec += 60 * 60 * st->Hours;
if (st->Hours > 24)
- cERROR(1, ("illegal hours %d", st->Hours));
+ cifs_dbg(VFS, "illegal hours %d\n", st->Hours);
days = sd->Day;
month = sd->Month;
if ((days > 31) || (month > 12)) {
- cERROR(1, ("illegal date, month %d day: %d", month, days));
+ cifs_dbg(VFS, "illegal date, month %d day: %d\n", month, days);
if (month > 12)
month = 12;
}
@@ -961,9 +991,9 @@ struct timespec cnvrtDosUnixTm(__u16 date, __u16 time)
days -= ((year & 0x03) == 0) && (month < 2 ? 1 : 0);
sec += 24 * 60 * 60 * days;
- ts.tv_sec = sec;
+ ts.tv_sec = sec + offset;
- /* cFYI(1,("sec after cnvrt dos to unix time %d",sec)); */
+ /* cifs_dbg(FYI, "sec after cnvrt dos to unix time %d\n",sec); */
ts.tv_nsec = 0;
return ts;
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-10 01:58:53 +0000