diff options
Diffstat (limited to 'quotasys.c')
| -rw-r--r-- | quotasys.c | 152 |
1 files changed, 148 insertions, 4 deletions
@@ -80,6 +80,93 @@ char *type2name(int type) } /* + * Project quota handling + */ +#define PROJECT_FILE "/etc/projid" +#define MAX_LINE_LEN 1024 + +static FILE *project_file; + +/* Rewind /etc/projid to the beginning */ +void setprent(void) +{ + if (project_file) + fclose(project_file); + project_file = fopen(PROJECT_FILE, "r"); +} + +/* Close /etc/projid file */ +void endprent(void) +{ + fclose(project_file); + project_file = NULL; +} + +/* Get next entry in /etc/projid */ +struct fs_project *getprent(void) +{ + static struct fs_project p; + static char linebuf[MAX_LINE_LEN]; + char *idstart, *idend; + + if (!project_file) + return NULL; + while (fgets(linebuf, MAX_LINE_LEN, project_file)) { + /* Line too long? */ + if (linebuf[strlen(linebuf) - 1] != '\n') + continue; + /* Skip comments */ + if (linebuf[0] == '#') + continue; + idstart = strchr(linebuf, ':'); + /* Skip invalid lines... We follow what xfs_quota does */ + if (!idstart) + continue; + *idstart = 0; + idstart++; + /* + * Colon can separate name from something else - follow what + * xfs_quota does + */ + idend = strchr(idstart, ':'); + if (idend) + *idend = 0; + p.pr_name = linebuf; + p.pr_id = strtoul(idstart, NULL, 10); + return &p; + } + return NULL; +} + +static struct fs_project *get_project_by_name(char *name) +{ + struct fs_project *p; + + setprent(); + while ((p = getprent())) { + if (!strcmp(name, p->pr_name)) + break; + } + endprent(); + + return p; +} + +static struct fs_project *get_project_by_id(qid_t id) +{ + struct fs_project *p; + + setprent(); + while ((p = getprent())) { + if (p->pr_id == id) + break; + } + endprent(); + + return p; +} + +/* * Convert name to uid */ uid_t user2uid(char *name, int flag, int *err) @@ -138,14 +225,46 @@ gid_t group2gid(char *name, int flag, int *err) } /* + * Convert project name to project id + */ +qid_t project2pid(char *name, int flag, int *err) +{ + qid_t ret; + char *errch; + struct fs_project *p; + + if (err) + *err = 0; + if (!flag) { + ret = strtoul(name, &errch, 0); + if (!*errch) /* Is name number - we got directly pid? */ + return ret; + } + p = get_project_by_name(name); + if (!p) { + if (!err) { + errstr(_("project %s does not exist.\n"), name); + exit(1); + } + else { + *err = -1; + return 0; + } + } + return p->pr_id; +} + +/* * Convert name to id */ int name2id(char *name, int qtype, int flag, int *err) { if (qtype == USRQUOTA) return user2uid(name, flag, err); - else + else if (qtype == GRPQUOTA) return group2gid(name, flag, err); + else + return project2pid(name, flag, err); } /* @@ -181,14 +300,32 @@ int gid2group(gid_t id, char *buf) } /* + * Convert project id to name + */ +int pid2project(qid_t id, char *buf) +{ + struct fs_project *p; + + if (!(p = get_project_by_id(id))) { + snprintf(buf, MAXNAMELEN, "#%u", (uint) id); + return 1; + } + else + sstrncpy(buf, p->pr_name, MAXNAMELEN); + return 0; +} + +/* * Convert id to user/groupname */ int id2name(int id, int qtype, char *buf) { if (qtype == USRQUOTA) return uid2user(id, buf); - else + else if (qtype == GRPQUOTA) return gid2group(id, buf); + else + return pid2project(id, buf); } /* @@ -531,6 +668,8 @@ static int hasxfsquota(const char *dev, struct mntent *mnt, int type, int flags) return QF_XFS; else if (type == GRPQUOTA && (info.qs_flags & XFS_QUOTA_GDQ_ACCT)) return QF_XFS; + else if (type == PRJQUOTA && (info.qs_flags & XFS_QUOTA_PDQ_ACCT)) + return QF_XFS; #ifdef XFS_ROOTHACK /* * Old XFS filesystems (up to XFS 1.2 / Linux 2.5.47) had a @@ -543,6 +682,8 @@ static int hasxfsquota(const char *dev, struct mntent *mnt, int type, int flags) return QF_XFS; else if (type == GRPQUOTA && (sbflags & XFS_QUOTA_GDQ_ACCT)) return QF_XFS; + else if (type == PRJQUOTA && (sbflags & XFS_QUOTA_PDQ_ACCT)) + return QF_XFS; #endif /* XFS_ROOTHACK */ } @@ -981,6 +1122,8 @@ static int xfs_kern_quota_on(const char *dev, int type) return 1; if (type == GRPQUOTA && (info.qs_flags & XFS_QUOTA_GDQ_ACCT)) return 1; + if (type == PRJQUOTA && (info.qs_flags & XFS_QUOTA_PDQ_ACCT)) + return 1; } return 0; } @@ -1137,12 +1280,13 @@ alloc: free((char *)devname); devname = sstrdup(loopdev); } - /* Further we are not interested in mountpoints without quotas and we don't want to touch them */ qfmt[USRQUOTA] = hasquota(devname, mnt, USRQUOTA, flags); qfmt[GRPQUOTA] = hasquota(devname, mnt, GRPQUOTA, flags); - if (qfmt[USRQUOTA] < 0 && qfmt[GRPQUOTA] < 0) { + qfmt[PRJQUOTA] = hasquota(devname, mnt, PRJQUOTA, flags); + if (qfmt[USRQUOTA] < 0 && qfmt[GRPQUOTA] < 0 && + qfmt[PRJQUOTA] < 0) { free((char *)devname); continue; } |