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Red Hat Bugzilla – Attachment 604986 Details for
Bug 833024
[RFE] Teach GSSD to use DIR:/run/user/$UID for Kerberos DIR caches
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[patch]
proposed changes for parameterizing the search path with %U for IDs
nfs-utils-1.2.6-user.patch (text/plain), 3.89 KB, created by
Nalin Dahyabhai
on 2012-08-16 18:09:00 UTC
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Description:
proposed changes for parameterizing the search path with %U for IDs
Filename:
MIME Type:
Creator:
Nalin Dahyabhai
Created:
2012-08-16 18:09:00 UTC
Size:
3.89 KB
patch
obsolete
>--- nfs-utils-1.2.6/utils/gssd/gssd.h >+++ nfs-utils-1.2.6/utils/gssd/gssd.h >@@ -45,7 +45,7 @@ > #define DNOTIFY_SIGNAL (SIGRTMIN + 3) > > #define GSSD_DEFAULT_CRED_DIR "/tmp" >-#define GSSD_USER_CRED_DIR "/run/user" >+#define GSSD_USER_CRED_DIR "/run/user/%U" > #define GSSD_DEFAULT_CRED_PREFIX "krb5cc" > #define GSSD_DEFAULT_MACHINE_CRED_SUFFIX "machine" > #define GSSD_DEFAULT_KEYTAB_FILE "/etc/krb5.keytab" >--- nfs-utils-1.2.6/utils/gssd/gssd.man >+++ nfs-utils-1.2.6/utils/gssd/gssd.man >@@ -103,9 +103,12 @@ where to look for the rpc_pipefs filesys > .B -d directory > Tells > .B rpc.gssd >-where to look for Kerberos credential files. The default value is "/tmp". >-This can also be a colon separated list of directories to be searched >-for Kerberos credential files. Note that if machine credentials are being >+where to look for Kerberos credential files. The default value is >+"/tmp:/run/user/%U". >+This can also be a colon separated list of directories to be searched for >+Kerberos credential files. The sequence "%U", if used, is replaced with >+the UID of the user for whom credentials are being searched. >+Note that if machine credentials are being > stored in files, then the first directory on this list is where the > machine credentials are stored. > .TP >--- nfs-utils-1.2.6/utils/gssd/krb5_util.c >+++ nfs-utils-1.2.6/utils/gssd/krb5_util.c >@@ -1036,16 +1036,38 @@ err_cache: > * Returns 0 if a ccache was found, and a non-zero error code otherwise. > */ > int >-gssd_setup_krb5_user_gss_ccache(uid_t uid, char *servername, char *dirname) >+gssd_setup_krb5_user_gss_ccache(uid_t uid, char *servername, char *dirpattern) > { >- char buf[MAX_NETOBJ_SZ]; >+ char buf[MAX_NETOBJ_SZ], dirname[PATH_MAX]; > const char *cctype; > struct dirent *d; >- int err; >+ int err, i, j; > > printerr(2, "getting credentials for client with uid %u for " > "server %s\n", uid, servername); >- memset(buf, 0, sizeof(buf)); >+ >+ for (i = 0, j = 0; dirpattern[i] != '\0'; i++) { >+ switch (dirpattern[i]) { >+ case '%': >+ switch (dirpattern[i + 1]) { >+ case '%': >+ dirname[j++] = dirpattern[i]; >+ i++; >+ break; >+ case 'U': >+ j += sprintf(dirname + j, "%lu", >+ (unsigned long) uid); >+ i++; >+ break; >+ } >+ break; >+ default: >+ dirname[j++] = dirpattern[i]; >+ break; >+ } >+ } >+ dirname[j] = '\0'; >+ > err = gssd_find_existing_krb5_ccache(uid, dirname, &cctype, &d); > if (err) > return err; >--- nfs-utils-1.2.6/utils/gssd/gssd_proc.c >+++ nfs-utils-1.2.6/utils/gssd/gssd_proc.c >@@ -937,23 +937,6 @@ > goto out; > } > >-static char * >-user_cachedir(char *dirname, uid_t uid) >-{ >- struct passwd *pw; >- char *ptr; >- >- if ((pw = getpwuid(uid)) == NULL) { >- printerr(0, "user_cachedir: Failed to find '%d' uid" >- " for cache directory\n"); >- return NULL; >- } >- ptr = malloc(strlen(dirname)+strlen(pw->pw_name)+2); >- if (ptr) >- sprintf(ptr, "%s/%s", dirname, pw->pw_name); >- >- return ptr; >-} > /* > * this code uses the userland rpcsec gss library to create a krb5 > * context on behalf of the kernel >@@ -968,7 +951,7 @@ > gss_buffer_desc token; > char **credlist = NULL; > char **ccname; >- char **dirname, *dir, *userdir; >+ char **dirname; > int create_resp = -1; > int err, downcall_err = -EACCES; > >@@ -1011,22 +994,7 @@ > service == NULL)) { > /* Tell krb5 gss which credentials cache to use */ > for (dirname = ccachesearch; *dirname != NULL; dirname++) { >- /* See if the user name is needed */ >- if (strncmp(*dirname, GSSD_USER_CRED_DIR, >- strlen(GSSD_USER_CRED_DIR)) == 0) { >- userdir = user_cachedir(*dirname, uid); >- if (userdir == NULL) >- continue; >- dir = userdir; >- } else >- dir = *dirname; >- >- err = gssd_setup_krb5_user_gss_ccache(uid, clp->servername, dir); >- >- if (userdir) { >- free(userdir); >- userdir = NULL; >- } >+ err = gssd_setup_krb5_user_gss_ccache(uid, clp->servername, *dirname); > if (err == -EKEYEXPIRED) > downcall_err = -EKEYEXPIRED; > else if (!err)
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bug 833024
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