| Message ID | 1376495307-14174-1-git-send-email-smayhew@redhat.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Aug 14, 2013, at 11:48 AM, Scott Mayhew <smayhew@redhat.com> wrote: > The nfsmount.conf file has the following format: > > [ section "arg" ] > tag = value > > conf_get_tag_list() currently doesn't check the arg field so we wind up > getting all the options that fall under a particular section value, > instead of just the ones that match the specific "arg" field. As a > result, we wind up passing options to the mount syscall from sections > that aren't even relevant to the mount operation that is being > performed. > > For example, if we have three different server sections, and each > section has an Nfsvers tag, then the string we pass to the mount syscall > will have two extra occurrences of the nfsvers option. Each option > should appear at most 4 times -- once for the system section, once for > the server-specific section, once for the mount-specific section, and > once for the command line mount options. > > Signed-off-by: Scott Mayhew <smayhew@redhat.com> Acked-by: Chuck Lever <chuck.lever@oracle.com> Btw, is there still a problem with "sloppy" ? > --- > support/include/conffile.h | 2 +- > support/nfs/conffile.c | 4 +++- > utils/mount/configfile.c | 2 +- > 3 files changed, 5 insertions(+), 3 deletions(-) > > diff --git a/support/include/conffile.h b/support/include/conffile.h > index ce7aa21..05ea5d2 100644 > --- a/support/include/conffile.h > +++ b/support/include/conffile.h > @@ -54,7 +54,7 @@ extern int conf_end(int, int); > extern void conf_free_list(struct conf_list *); > extern struct sockaddr *conf_get_address(char *, char *); > extern struct conf_list *conf_get_list(char *, char *); > -extern struct conf_list *conf_get_tag_list(char *); > +extern struct conf_list *conf_get_tag_list(char *, char *); > extern int conf_get_num(char *, char *, int); > extern char *conf_get_str(char *, char *); > extern char *conf_get_section(char *, char *, char *); > diff --git a/support/nfs/conffile.c b/support/nfs/conffile.c > index 5015e94..c3434d5 100644 > --- a/support/nfs/conffile.c > +++ b/support/nfs/conffile.c > @@ -565,7 +565,7 @@ cleanup: > } > > struct conf_list * > -conf_get_tag_list(char *section) > +conf_get_tag_list(char *section, char *arg) > { > struct conf_list *list = 0; > struct conf_list_node *node; > @@ -579,6 +579,8 @@ conf_get_tag_list(char *section) > cb = LIST_FIRST(&conf_bindings[conf_hash (section)]); > for (; cb; cb = LIST_NEXT(cb, link)) { > if (strcasecmp (section, cb->section) == 0) { > + if (arg != NULL && strcasecmp(arg, cb->arg) != 0) > + continue; > list->cnt++; > node = calloc(1, sizeof *node); > if (!node) > diff --git a/utils/mount/configfile.c b/utils/mount/configfile.c > index 6f2ee75..1f1b6e7 100644 > --- a/utils/mount/configfile.c > +++ b/utils/mount/configfile.c > @@ -286,7 +286,7 @@ conf_parse_mntopts(char *section, char *arg, char *opts) > char *nvalue, *ptr; > int argtype; > > - list = conf_get_tag_list(section); > + list = conf_get_tag_list(section, arg); > TAILQ_FOREACH(node, &list->fields, link) { > /* > * Do not overwrite options if already exists > -- > 1.7.11.7 > > -- > To unsubscribe from this list: send the line "unsubscribe linux-nfs" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html -- Chuck Lever chuck[dot]lever[at]oracle[dot]com -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On 14/08/13 11:48, Scott Mayhew wrote: > The nfsmount.conf file has the following format: > > [ section "arg" ] > tag = value > > conf_get_tag_list() currently doesn't check the arg field so we wind up > getting all the options that fall under a particular section value, > instead of just the ones that match the specific "arg" field. As a > result, we wind up passing options to the mount syscall from sections > that aren't even relevant to the mount operation that is being > performed. > > For example, if we have three different server sections, and each > section has an Nfsvers tag, then the string we pass to the mount syscall > will have two extra occurrences of the nfsvers option. Each option > should appear at most 4 times -- once for the system section, once for > the server-specific section, once for the mount-specific section, and > once for the command line mount options. > > Signed-off-by: Scott Mayhew <smayhew@redhat.com> Committed... steved. > --- > support/include/conffile.h | 2 +- > support/nfs/conffile.c | 4 +++- > utils/mount/configfile.c | 2 +- > 3 files changed, 5 insertions(+), 3 deletions(-) > > diff --git a/support/include/conffile.h b/support/include/conffile.h > index ce7aa21..05ea5d2 100644 > --- a/support/include/conffile.h > +++ b/support/include/conffile.h > @@ -54,7 +54,7 @@ extern int conf_end(int, int); > extern void conf_free_list(struct conf_list *); > extern struct sockaddr *conf_get_address(char *, char *); > extern struct conf_list *conf_get_list(char *, char *); > -extern struct conf_list *conf_get_tag_list(char *); > +extern struct conf_list *conf_get_tag_list(char *, char *); > extern int conf_get_num(char *, char *, int); > extern char *conf_get_str(char *, char *); > extern char *conf_get_section(char *, char *, char *); > diff --git a/support/nfs/conffile.c b/support/nfs/conffile.c > index 5015e94..c3434d5 100644 > --- a/support/nfs/conffile.c > +++ b/support/nfs/conffile.c > @@ -565,7 +565,7 @@ cleanup: > } > > struct conf_list * > -conf_get_tag_list(char *section) > +conf_get_tag_list(char *section, char *arg) > { > struct conf_list *list = 0; > struct conf_list_node *node; > @@ -579,6 +579,8 @@ conf_get_tag_list(char *section) > cb = LIST_FIRST(&conf_bindings[conf_hash (section)]); > for (; cb; cb = LIST_NEXT(cb, link)) { > if (strcasecmp (section, cb->section) == 0) { > + if (arg != NULL && strcasecmp(arg, cb->arg) != 0) > + continue; > list->cnt++; > node = calloc(1, sizeof *node); > if (!node) > diff --git a/utils/mount/configfile.c b/utils/mount/configfile.c > index 6f2ee75..1f1b6e7 100644 > --- a/utils/mount/configfile.c > +++ b/utils/mount/configfile.c > @@ -286,7 +286,7 @@ conf_parse_mntopts(char *section, char *arg, char *opts) > char *nvalue, *ptr; > int argtype; > > - list = conf_get_tag_list(section); > + list = conf_get_tag_list(section, arg); > TAILQ_FOREACH(node, &list->fields, link) { > /* > * Do not overwrite options if already exists > -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/support/include/conffile.h b/support/include/conffile.h index ce7aa21..05ea5d2 100644 --- a/support/include/conffile.h +++ b/support/include/conffile.h @@ -54,7 +54,7 @@ extern int conf_end(int, int); extern void conf_free_list(struct conf_list *); extern struct sockaddr *conf_get_address(char *, char *); extern struct conf_list *conf_get_list(char *, char *); -extern struct conf_list *conf_get_tag_list(char *); +extern struct conf_list *conf_get_tag_list(char *, char *); extern int conf_get_num(char *, char *, int); extern char *conf_get_str(char *, char *); extern char *conf_get_section(char *, char *, char *); diff --git a/support/nfs/conffile.c b/support/nfs/conffile.c index 5015e94..c3434d5 100644 --- a/support/nfs/conffile.c +++ b/support/nfs/conffile.c @@ -565,7 +565,7 @@ cleanup: } struct conf_list * -conf_get_tag_list(char *section) +conf_get_tag_list(char *section, char *arg) { struct conf_list *list = 0; struct conf_list_node *node; @@ -579,6 +579,8 @@ conf_get_tag_list(char *section) cb = LIST_FIRST(&conf_bindings[conf_hash (section)]); for (; cb; cb = LIST_NEXT(cb, link)) { if (strcasecmp (section, cb->section) == 0) { + if (arg != NULL && strcasecmp(arg, cb->arg) != 0) + continue; list->cnt++; node = calloc(1, sizeof *node); if (!node) diff --git a/utils/mount/configfile.c b/utils/mount/configfile.c index 6f2ee75..1f1b6e7 100644 --- a/utils/mount/configfile.c +++ b/utils/mount/configfile.c @@ -286,7 +286,7 @@ conf_parse_mntopts(char *section, char *arg, char *opts) char *nvalue, *ptr; int argtype; - list = conf_get_tag_list(section); + list = conf_get_tag_list(section, arg); TAILQ_FOREACH(node, &list->fields, link) { /* * Do not overwrite options if already exists
The nfsmount.conf file has the following format: [ section "arg" ] tag = value conf_get_tag_list() currently doesn't check the arg field so we wind up getting all the options that fall under a particular section value, instead of just the ones that match the specific "arg" field. As a result, we wind up passing options to the mount syscall from sections that aren't even relevant to the mount operation that is being performed. For example, if we have three different server sections, and each section has an Nfsvers tag, then the string we pass to the mount syscall will have two extra occurrences of the nfsvers option. Each option should appear at most 4 times -- once for the system section, once for the server-specific section, once for the mount-specific section, and once for the command line mount options. Signed-off-by: Scott Mayhew <smayhew@redhat.com> --- support/include/conffile.h | 2 +- support/nfs/conffile.c | 4 +++- utils/mount/configfile.c | 2 +- 3 files changed, 5 insertions(+), 3 deletions(-)